PP-001: LONG-TERM SURVIVAL AFTER STEREOTACTIC RADIOSURGERY FOR THALAMIC K27M-MUTANT GLIOBLASTOMA: A CASE REPORT
Topic: AS29. Case report – Brain
Presenter: Prof.Dr. Andrey Golanov
Authors: *Andrey Golanov*1,2, Alexander Konovalov3, Denis Semenov3, Valeriy Kostyuchenko3, IVAN OSINOV3; 1Burdenko Neurosurgery Istitiute, Radiotherapy, Moscow, Russian Federation, 2Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation, 3Burdenko Institute of Neurosurgery, Moscow, Russian Federation
PP-002: “NO-NO” HEAD TREMOR AS A RARE NEUROLOGICAL MANIFESTATION OF METASTATIC BREAST CANCER
Topic: AS29. Case report – Brain
Presenter: Dr. HIMANSHI JAIN
Authors: *HIMANSHI JAIN*, Puneet Bagri; SHREE KRISHNA HOSPITAL, RADIATION ONCOLOGY, Anand, India
PP-003: IMMOBILIZING THE JAW DURING STEREOTACTIC RADIOSURGERY FOR LESIONS EXTENDING INTO THE REGION OF TEMPOROMANDIBULAR JOINT: AN INNOVATIVE APPROACH FOR A QUICK, REVERSIBLE, NON-INVASIVE, RADIOLUCENT AND RELIABLE FIXATION.
Topic: AS29. Case report – Brain
Presenter: Prof. Adesh Shrivastava
Authors: *Adesh Shrivastava*, Manjul Tripathi; All India Institute of Medical Sciences Bhopal, Neurosurgery, Bhopal, India
PP-004: CRANIOSPINAL IRRADIATION IN YOUNG ADULT PATIENTS WITH MEDULLOBLASTOMA: INSTITUTIONAL EXPERIENCE AND CLINICAL OUTCOME
Topic: AS25. Fractionation regimens
Presenter: Prof.Dr. LUCAS CAUSSA
Authors: *LUCAS CAUSSA*, FRANCO MACIEL, JOSE GILARDI, ARIEL GOMEZ PALACIOS, OFELIA PEREZ CONCI, BELEN RAIDEN, CAROL RIOS, ANA RAIES, LUCIANA BRUN, JULIETA ABATE DAGA, CAMILA VARGAS, FERNANDO MARTINI, IVAN CHARIF COLL, MARIANO SALUM, CAROLINE DESCAMPS, EGLE AONE, EDGARD FALCO, EDGARDO GARRIGO, DIEGO FERNANDEZ, MARIA DIAZ VAZQUEZ, GUSTAVO FERRARIS; CENTRO DE RADIOTERAPIA DEAN FUNES, RADIOTERAPIA, Cordoba, Argentina
PP-005: EFFECTIVENESS OF GAMMA KNIFE STEREOTACTIC RADIOSURGERY FOR TRIGEMINAL NEURALGIA WITHOUT APPARENT RESPONSIBLE VESSELS ON MRI
Topic: AS10. Functional SRS (Pain, Epilepsies, Tremor, Psychiatry)
Presenter: Yoshimasa Mori
Authors: Yasuhiro Matsushita, *Yoshimasa Mori*, Sachiko Kato, Atsuo Masago; Ookuma Hospital, Gamma Knife Center, Nagoya, Japan
PP-006: HIGHER DOSE RATES IMPROVE PAIN RELIEF IN LINAC-SRS FOR TRIGEMINAL NEURALGIA: A RETROSPECTIVE ANALYSIS
Topic: AS10. Functional SRS (Pain, Epilepsies, Tremor, Psychiatry)
Presenter: Assoc.Prof. Nicolas Ploquin
Authors: *Nicolas Ploquin*1,2,3, Sara Alaqel4, Matthew Frick1,2, Nathan Murtha1,2,3, Robert Nordal5, Zelma Kiss4; 1University of Calgary, Department of Physics and Astronomy, Calgary, Canada, 2Cancer Care Alberta, Arthur J.E. Child Comprehensive Cancer Centre, Department of Medical Physics, Calgary, Canada, 3University of Calgary, Department of Oncology, Division of Medical Physics, Calgary, Canada, 4University of Calgary, Department of Clinical Neuroscience, Calgary, Canada, 5University of Calgary, Division of Oncology, Department of Radiation Oncology, Calgary, Canada
PP-007: SAFETY AND EFFECTIVENESS OF FRAMELESS LINAC-BASED STEREOTACTIC RADIOSURGERY ON TREMOR IN PATIENTS WITH ESSENTIAL TREMOR OR PARKINSON’S DISEASE (TREMOR TRIAL)
Topic: AS10. Functional SRS (Pain, Epilepsies, Tremor, Psychiatry)
Presenter: Kevin So
Authors: *Kevin So*1, Michael Dally2, Andrew Evans1, Girish Nair Somasekharan3, Sarah Farrand1, Ann Sloan1, Alex Yeung1, Ashley Plank4, Amma Owusu5; 1Epworth, Neurology, Richmond, Australia, 2Icon Cancer Centre, Radiation Oncology, Melbourne, Australia, 3Epworth, Neurosurgery, Richmond, Australia, 4Icon Cancer Centre Toowoomba, Toowoomba, Australia, 5Integrated Cancer Oncology Network (Icon), Research, Brisbane, Australia
PP-008: MULTI-METRIC SOLUTION FOR EVALUATING MAGNETIC RESONANCE IMAGING DISTORTION CORRECTION IN CRANIAL STEREOTACTIC RADIOSURGERY
Topic: AS26. Imaging for radiosurgery (e.g. MR-Linac, others)
Presenter: Tristan Belloeil-Marrane
Authors: *Tristan Belloeil-Marrane*, Thierry Gevaert, Mark De Ridder; UZ Brussel, Vrije Universiteit Brussel, Radiotherapy, Brussels, Belgium
PP-009: EVALUATION OF A COMMERCIAL SYNTHETIC-CT FOR SRS BRAIN TREATMENTS
Topic: AS26. Imaging for radiosurgery (e.g. MR-Linac, others)
Presenter: Amandine Halley
Authors: Amandine Halley, Vincent Fave, Jarno Bouveret, Ambroise Champion, David Benzaquen, *Marc Levivier*, Dimitrios Daskalou; Hôpital de La Tour, Centre NeuroKnife,, Geneva, Switzerland
PP-010: 64CU-DOTATATE PET/MRI FOR RADIOSURGERY PLANNING IN HEAD AND NECK PARAGANGLIOMAS
Topic: AS26. Imaging for radiosurgery (e.g. MR-Linac, others)
Presenter: Michael Schulder
Authors: Takahiro Sanada1, Harshal Shah1, Srinivasan Srinivasan1, John Starner2, Emel Calugaru2, Jessica Jung2, *Michael Schulder*1, Anuj Goenka3; 1Northwell Health, Neurosurgery, New Hyde Park, NY, United States of America, 2Northwell Health, Radiation Medicine, Lake Success, United States of America, 3Northwell Health, Radiation Medicine, Lake Success, NY, United States of America
PP-011: CONTRAST-ENHANCED 3D T1 BLACK-BLOOD MRI ENHANCES TARGET DELINEATION IN SRS
Topic: AS26. Imaging for radiosurgery (e.g. MR-Linac, others)
Presenter: Prof.Dr.Dr. SEUNG YEOB YANG
Authors: *SEUNG YEOB YANG*; Dongguk University Ilsan Hospital, NEUROSURGERY, Goyang, Korea, Republic of
PP-012: GAMMA KNIFE RADIOSURGERY WITH PET-CT AND MRI CO-REGISTRATION FOR RECURRENT NASOPHARYNGEAL CARCINOMA: A 14-YEAR SINGLE-CENTER RETROSPECTIVE ANALYSIS
Topic: AS27. Integration of multimodality imaging (fMRI, MEG, PET)
Presenter: Sun-Young Park
Authors: *Sun-Young Park*, Ji Hye Park, Byungmok Kim, Jeong-Hyun Hwang, SEONG-HYUN PARK; Kyungpook National University Hospital, Neurosurgery, Daegu, Korea, Republic of
PP-013: SINGLE BRAIN METASTASIS RADIOSURGERY: DOSIMETRIC COMPARISON OF COPLANAR AND NON-COPLANAR VMAT TECHNIQUES
Topic: AS21. Physics
Presenter: Prof.Dr. LUCAS CAUSSA
Authors: *LUCAS CAUSSA*, CAROLINE DESCAMPS, DIEGO FERNANDEZ, ARIEL GOMEZ PALACIOS, OFELIA PEREZ CONCI, BELEN RAIDEN, ANA RAIES, JOSE GILARDI, CAROL RIOS, MARIANO SALUM, FRANCO MACIEL, JULIETA ABATE DAGA, CAMILA VARGAS, FERNANDO MARTINI, IVAN CHARIF COLL, EGLE AONE, EDGARD FALCO, EDGARDO GARRIGO, LUCIANA BRUN, MARIA DIAZ VAZQUEZ, GUSTAVO FERRARIS; CENTRO DE RADIOTERAPIA DEAN FUNES, RADIOTERAPIA, Cordoba, Argentina
PP-014: MINIMISING BODY DOSE IN STEREOTACTIC RADIOSURGERY
Topic: AS21. Physics
Presenter: Ms. Petr Filatov
Authors: *Petr Filatov*, Emese Toth, Dineli Alahakone, Kelsey Chisholm, Katrina Sewell, Tim Yang; Dunedin Hospital, Radiotherapy, Dunedin, New Zealand
PP-015: EVALUATION OF MULTIPLE DETECTOR RESPONSE UNDER UHDR FLASHKNIFE ELECTRON BEAMS
Topic: AS21. Physics
Presenter: Prof.Dr. Thierry Gevaert
Authors: Racell Nabha1,2, Iris Apale1,2, Séverine Rossomme3, Marlies Boussaer1,2, Mark De Ridder1,2, *Thierry Gevaert*1,2; 1UZ Brussel, Department of Radiotherapy, Brussels, Belgium, 2Vrije Universiteit Brussel, Research Centre for Digital Medicine, Brussels, Belgium, 3IBA, Dosimetry department, Louvain La Neuve, Belgium
PP-016: USING G-FRAME ANGLES IN GAMMA KNIFE RADIOSURGERY FOR INTRACANAL VESTIBULAR SCHWANNOMAS
Topic: AS21. Physics
Presenter: Prof.Dr. Andrey Golanov
Authors: Irina Yurikova1,2,3, Evgeniia Novikova2, *Andrey Golanov*2,3,4, Valerij Kostjuchenko2,3, Denis Semenov2,3, IVAN OSINOV2,3, Alexander Savateev2,3; 1National Research Nuclear University MEPhI, Moscow, Russian Federation, 2Moscow Gamma Knife Center, Moscow, Russian Federation, 3Burdenko Institute of Neurosurgery, Moscow, Russian Federation, 4Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
PP-017: OPTIMIZATION OF SRS PLANS USING PSEUDO-STRUCTURES FOR LOW-DOSE CONTROL IN LEKSELL GAMMA PLAN
Topic: AS21. Physics
Presenter: Prof.Dr. Andrey Golanov
Authors: Evgeniia Novikova1, Irina Yurikova1,2,3, *Andrey Golanov*1,2,4, Valerij Kostjuchenko1,2, IVAN OSINOV1,2, Alexander Savateev1,2, Denis Semenov1,2; 1Moscow Gamma Knife Center, Moscow, Russian Federation, 2Burdenko Institute of Neurosurgery, Moscow, Russian Federation, 3National Research Nuclear University MEPhI, Moscow, Russian Federation, 4Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
PP-018: SPHERICITY IMPACT ON RADIATION DOSE TO THE COCHLEA
Topic: AS21. Physics
Presenter: Dr. Alessandra Gorgulho
Authors: Lucas De Salles1, Kesia Cardoso1, *Alessandra Gorgulho*1,2,3, Thaylane Castilho3, Crystian Saraiva2, André Banhate3, Allisson Borges3, Fabio Faustino3, Antonio De Salles1,2,3; 1NeuroSapiens, Neurosurgery, São Paulo, Brazil, 2HCor, Radiation Therapy, Sao Paulo, Brazil, 3Hospital DF Star, Radiation Therapy, Brasília, Brazil
PP-019: EFFECT OF LEAF POSITIONING THRESHOLD IN RAYSTATION TREATMENT PLANNING FOR STEREOTACTIC TREATMENT
Topic: AS21. Physics
Presenter: Mr. Kamlesh Gupta
Authors: *Kamlesh Gupta*1, Shrikant Deshpande2, Zoe Moutrie1,3, Jarrad Begg2; 1Campbelltown Hospital, Liverpool and Macarthur Cancer Therapy Center, Campbelltown, Australia, 2Liverpool Hospital, Liverpool and Macarthur Cancer Therapy Centre, Liverpool, Australia, 3Ingham Institute for Applied Medical Research, Liverpool, Australia
PP-020: HIGH-RESOLUTION DETECTOR–DERIVED DLG IMPROVES PATIENT-SPECIFIC QA FOR SRS AND SABR
Topic: AS21. Physics
Presenter: Seonghee Kang
Authors: *Seonghee Kang*, Jegal Jin, Inbum Lee, Jung-in Kim; Seoul National University Hospital, Radiation Oncology, Seoul, Korea, Republic of
PP-021: A NOVEL GUIDE INDICATOR FOR SRS PRECISION
Topic: AS21. Physics
Presenter: Dr. Byungmok Kim
Authors: *Byungmok Kim*, Jeong-Hyun Hwang, SEONG-HYUN PARK, Ji Hye Park, Sun Young Park; Kyungpook National University Hospital, Neurosurgery, Daegu, Korea, Republic of
PP-022: CHANGES IN RADIATION DOSE DISTRIBUTION ACCORDING TO PHANTOM MOVEMENT IN THE GAMMA KNIFE ICON
Topic: AS21. Physics
Presenter: Dipl.Phys Dohee Lee
Authors: *Dohee Lee*1, Sangryong Jeon2, KyoungJun Yoon2, jungwon kwak2, Chi-yeong Jung1,2, Young Hyun Cho3; 1Asan Medical Center, Gamma Knife Center, Seoul, Korea, Republic of, 2Asan Medical Center, Radiosurgery center, Seoul, Korea, Republic of, 3Asan Medical Center, Neurosurgery, Seoul, Korea, Republic of
PP-023: A QA DEVICE FOR CHECKING THE GATING FUNCTION OF GAMMA KNIFE’S HDMM SYSTEM
Topic: AS21. Physics
Presenter: Prof. Lanchun Lu
Authors: *Lanchun Lu*, Joshua Mathews, Matthew Meineke, Nilendu Gupta; The Ohio State University, Department of Radiation Oncology & The James Cancer Hospital, Columbus, OH, United States of America
PP-024: CHANGES IN PATIENT MARKER COORDINATES WITH HIGH-DEFINITION MOTION MANAGEMENT SYSTEM DURING FRAMELESS GAMMA KNIFE RADIOSURGERY
Topic: AS21. Physics
Presenter: Dr. Hyeong Cheol Moon
Authors: *Hyeong Cheol Moon*1, Young Seok Park1, KIM SUN GI1, RYU MYEONGHYE1, Jung Seok Choi2, Byung Jun Min3, Jae Hoon Woo1; 1Chungbuk National University Hospital, Chungbuk National University, Neurosurgery, Cheongju, Korea, Republic of, 2Department of Animal Science, Chungbuk National University, Cheongju, Korea, Republic of, 3Department of radiation oncology, Chungbuk National University Hospital, Chungbuk National University College of Medicne, Cheongju, Korea, Republic of
PP-025: REDUCING TREATMENT TIME IN SINGLE-TARGET STEREOTACTIC RADIOSURGERY WITH VARIAN IDENTIFY
Topic: AS21. Physics
Presenter: Assoc.Prof. Nathan Murtha
Authors: *Nathan Murtha*1,2, Nicolas Ploquin1,2,3; 1Cancer Care Alberta, Arthur J.E. Child Comprehensive Cancer Centre, Department of Medical Physics, Calgary, Canada, 2University of Calgary, Department of Oncology, Division of Medical Physics, Calgary, Canada, 3University of Calgary, Department of Physics and Astronomy, Calgary, Canada
PP-026: MACHINE LEARNING APPROACH FOR PRE-PLANNING 12-GY ISODOSE VOLUME PREDICTION IN BRAIN STEREOTACTIC RADIOSURGERY (SRS ) BASED ON TARGET AND PLAN PARAMETERS AS PREDICTORS ON RADIXACT TOMOTHERAPY.
Topic: AS21. Physics
Presenter: Dipl.Phys Amit Nirhali
Authors: *Amit Nirhali*, Vishram Naik, Rupesh Pagare, Jaideep Khadke, Sanjay Hunugundmath, Mariya Deputy, Shreya Dwivedi; Sahyadri superspeciality hospital, Radiation Oncology, Pune, India
PP-027: G-FRAME VS VANTAGE: MRI DISTORTIONS IN STEREOTACTIC RADIOSURGERY
Topic: AS21. Physics
Presenter: Dr. Josef Novotny Jr.
Authors: Lucie Hamackova1, *Josef Novotny Jr.*1, Radovan Zacek2; 1Na Homolce Hospital, Department of Medical Physics, Prague, Czech Republic, 2Na Homolce Hospital, Department of Radiodiagnostics, Prague, Czech Republic
PP-028: RADIOSURGERY FOR MULTIPLE BRAIN METASTASES: IS LESION COUNT NO LONGER THE LIMITING FACTOR IN RADIOSURGERY?
Topic: AS21. Physics
Presenter: Mr. Ian Paddick
Authors: Diana Grishchuk, *Ian Paddick*, Ana Luisa Luis; Queen Square Radiosurgery Centre, London, United Kingdom
PP-029: ASSESSMENT OF MRI GEOMETRIC ACCURACY IN STEREOTACTIC RADIOSURGERY USING AUTOMATED DISTORTION ANALYSIS: A SINGLE-CENTER EXPERIENCE
Topic: AS22. Quality assurance & dosimetry
Presenter: Prof.Dr. Andrey Golanov
Authors: Irina Yurikova1,2,3, Stanislav Ladygin2, Raul Karachurin2, Valerij Kostjuchenko3, Pavel Rjabov2, Sergeji Klimanov2, Mikhail Chmykhov2, *Andrey Golanov*1,3,4, Aleksandra Dalechina2,3; 1Burdenko Institute of Neurosurgery, Moscow, Russian Federation, 2National Research Nuclear University MEPhI, Moscow, Russian Federation, 3Moscow Gamma Knife Center, Moscow, Russian Federation, 4Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
PP-030: AN MRI QUALITY ASSURANCE FRAMEWORK TO MINIMIZE LOCALIZATION ERROR IN STEREOTACTIC RADIOSURGERY
Topic: AS22. Quality assurance & dosimetry
Presenter: Assoc.Prof. Dennis Mackin
Authors: *Dennis Mackin*1, Ping Hou2, Yao Ding1, Brian Taylor2, Christopher Walker2, Joshua Yung2, Thomas Beckham3, Jing Li3, Tina Briere1, Jason Stafford4; 1The University of Texas MD Anderson Cancer Center, Radiation Physics, Houston, TX, United States of America, 2The University of Texas MD Anderson Cancer Center, Imaging Physics, Houston, TX, United States of America, 3MD Anderson Cancer Center, CNS Radiation Oncology, Houston, TX, United States of America, 4The University of Texas MD Anderson Cancer Center, Imaging Physics, Houston, United States of America
PP-031: INTERNATIONAL SURVEY FOR INTRACRANIAL STEREOTACTIC RADIOSURGERY DOSIMETRY AUDITS – WHAT IS AVAILABLE WORLDWIDE AND HOW IT WORKS
Topic: AS22. Quality assurance & dosimetry
Presenter: Dr. Josef Novotny Jr.
Authors: *Josef Novotny Jr.*1, Lucie Hamackova1, Alexis Dimitriadis2; 1Na Homolce Hospital, Department of Medical Physics, Prague, Czech Republic, 2GenesisCare, Centre for Radiotherapy at Cromwell Hospital, London, United Kingdom
PP-032: FROM IMPROVISED PHANTOMS TO 3D COMMERCIAL VERIFICATION: LESSONS LEARNED IN MRI DISTORTION ASSESSMENT FOR VANTAGE-BASED RADIOSURGERY
Topic: AS22. Quality assurance & dosimetry
Presenter: Mr. Ian Paddick
Authors: Diana Grishchuk1, *Ian Paddick*1, Ana Luisa Luis2; 1Medical Physics Limited, Streatley, United Kingdom, 2Medical Physcis Limited, London, United Kingdom
PP-033: A FULLY INTEGRATED QA AND DATA-MANAGEMENT PLATFORM FOR CYBERKNIFE STEREOTACTIC TREATMENTS
Topic: AS22. Quality assurance & dosimetry
Presenter: Gregory Szalkowski
Authors: *Gregory Szalkowski*, Xuejun Gu, Cynthia Chuang, Lianli Liu, Iris Gibbs, Erqi Pollom, Scott Soltys, Elham Rahimy, Lei Wang; Stanford University, Radiation Oncology, Stanford, CA, United States of America
PP-034: DOSIMETRIC IMPACT OF AUTOMATIC COUCH ANGLE OPTIMIZATION IN STEREOTACTIC RADIOSURGERY FOR MULTIPLE BRAIN METASTASES
Topic: AS22. Quality assurance & dosimetry
Presenter: Ms. Cristina Teixeira
Authors: *Cristina Teixeira*, Marlies Boussaer, Sven Van Laere, Mark De Ridder, Thierry Gevaert; UZ Brussel, Vrije Universiteit Brussel, Radiotherapy, Brussels, Belgium
PP-035: OPTIMIZING CONFORMITY AND NORMAL TISSUE SPARING IN MULTI-MET SRS: A LINAC–GAMMA KNIFE DOSIMETRIC COMPARISON
Topic: AS22. Quality assurance & dosimetry
Presenter: Ms. Cristina Teixeira
Authors: *Cristina Teixeira*1, Orbay Askeroğlu2, Marlies Boussaer1, Sven Van Laere1, Mark De Ridder1, Selçuk Peker2, Thierry Gevaert1; 1UZ Brussel, Vrije Universiteit Brussel, Radiotherapy, Brussels, Belgium, 2Koç University Hospital, Department of Neurosurgery, Gamma Knife Center, Istanbul, Turkey
PP-036: ENHANCING RADIOTHERAPEUTIC EFFECTS VIA NANOPARTICLE-MEDIATED RADIOSENSITIZER DELIVERY GUIDED BY FOCUSED GAMMA RAYS IN LEWIS LUNG CARCINOMA–BEARING MOUSE BRAIN TUMOR MODELS
Topic: AS23. Radiobiology
Presenter: PD Dr. SAHOE LIM
Authors: *SAHOE LIM*1,2, SHIN JUNG2, In-Young Kim2, Kyung-Sub Moon2, Tae-Young Jung2; 1Chonnam National University, Gwangju, Korea, Republic of, 2Chonnam National University Hwasun Hospital, Brain Tumor Clinic & Gamma Knife center, Department of Neurosurgery, Hwasun, Korea, Republic of
PP-037: IMPLEMENTATION OF RADIATION THERAPIST CREDENTIALLING TO SAFELY REDUCE RADIATION ONCOLOGIST ATTENDANCE IN STEREOTACTIC TREATMENT DELIVERY
Topic: AS32. Radiosurgery program development
Presenter: Melanie Bauer
Authors: *Melanie Bauer*, Nadine Hong, Marita Lawlor, Farshad Foroudi, Morikatsu Wada, Richard Khor, Sweet Ping Ng; Olivia Newton John Cancer Wellness Centre - Austin Health, Radiation Oncology, Heidelberg, Australia
PP-038: THE IMPORTANCE OF MRI DISTORTION ROUTINE QA CHECK FOR STEREOTACTIC RADIOSURGERY – THE EXPERIENCE FROM DISTORTION MEASUREMENT ON MORE THAN 20 MRI SCANNERS OVER 10 CONSECUTIVE YEARS
Topic: AS32. Radiosurgery program development
Presenter: Prof. Lanchun Lu
Authors: *Lanchun Lu*1, Xiangyu Yang2, Matthew Meineke1, Dominic DiCostanzo1, Brett Bryan2, Brian Raterman2, Xia Jiang2, David Hintenlang2, John McGregor3, James B Elder3, Brian Dalm3, Patrick Youssef3, Kyle Wu3, Dukagjin Blakaj1, Joshua Palmer1, Raju Raval1, Evan Thomas1, Raj Singh1, Arnab Chakravarti1, Nilendu Gupta1, John Grecula1; 1Department of Radiation Oncology, Ohio State University Wexner Medical Center, Columbus, OH, United States of America, 2Department of Radiology, Ohio State University Wexner Medical Center, Columbus, OH, United States of America, 3The Ohio State University Wexner Medical Center, Department of Neurological Surgery, Columbus, OH, United States of America
PP-039: INTERINSTITUTIONAL COLLABORATION TO DELIVER NEUROAXIS RADIOTHERAPY AND STEREOTACTIC RADIOSURGERY FOR BRAIN METASTASES IN MEXICO: EXPERIENCE FROM TWO NATIONAL REFERENCE CENTERS
Topic: AS32. Radiosurgery program development
Presenter: Dr. Alejandro Rodríguez Camacho
Authors: *Alejandro Rodríguez Camacho*1, Sergio Moreno-Jimenez2, Guillermo Gutiérrez-Aceves2, Enrique Caballé Pérez3, Bernando Cacho Díaz3, Monica Serrano Murillo3, Talia Wegman Ostrosky3, Alberto Gonzalez Aguilar3, Jose Herrera-Gonzalez1, Miguel Celis-Lopez2, Dharely Cid Sánchez3, Federico Maldonado Magos3, Alipio González Vázquez3, Oscar Arrieta-Rodríguez4; 1National Institute of Neurology and Neurosurgery, Radiosurgery, Mexico City, Mexico, 2Instituto Nacional de Neurologia y Neurocirugia, Radioneurosurgery, Mexico City, Mexico, 3Instituto Nacional de Cancerologia, Unidad funcional de Neurooncología, Mexico City, Mexico, 4Instituto Nacional de Cancerología, Ciudad De México, Mexico
PP-040: TWO DECADES OF STEREOTACTIC RADIOSURGERY AND RADIOTHERAPY AT A NATIONAL REFERRAL CENTER: A 6 831‑PROCEDURE EXPERIENCE FROM MEXICO (2003–2025)
Topic: AS32. Radiosurgery program development
Presenter: Dr. Alejandro Rodríguez Camacho
Authors: *Alejandro Rodríguez Camacho*, Sergio Moreno-Jimenez, Guillermo Gutiérrez-Aceves, Miguel Celis-Lopez, Laura Hernández Sánchez; Instituto Nacional de Neurologia y Neurocirugia, Radioneurosurgery, Mexico City, Mexico
PP-041: FIVE FRACTIONS SCHEDULE RADIOTHERAPY FOR EARLY BREAST CANCER WITH SIMULTANEOUS INTERGRADED BOOST. OUR 5 YEARS SINGLE-INSTITUTION EXPERIENCE.
Topic: AS20. SBRT – Breast
Presenter: Dr. GEORGIOS KRITSELIS
Authors: *GEORGIOS KRITSELIS*; ONCOCARE, ATHENS MEDICAL CENTRE RADIOTHERAPY DEPARTMENT, Marousi, Greece
PP-042: SBRT FOR LOCALIZED PROSTATE CANCER USING THE RAYPILOT SYSTEM WITH MODIFIED FOLEY CATHETER BASED ON HYPOCATH SYSTEM PERMITTING A REAL-TIME INTRAFRACTION TRACKING PROSTATE MOTION. OUR TWO YEARS SINGLE INSTITUTION EXPERIENCE.
Topic: AS16. SBRT – Genito-urinary
Presenter: Dr. GEORGIOS KRITSELIS
Authors: *GEORGIOS KRITSELIS*; ONCOCARE, ATHENS MEDICAL CENTRE RADIOTHERAPY DEPARTMENT, Marousi, Greece
PP-043: EMPIRICAL VALIDATION OF A 3MM GEOMETRIC MARGIN AND ANATOMICAL PREDICTORS OF INTRAFRACTION MOTION IN PROSTATE SBRT USING REAL-TIME TRACKING
Topic: AS16. SBRT – Genito-urinary
Presenter: Dr. GEORGIOS KRITSELIS
Authors: Ioannis Floros1, Katerina Silivridou1, Michalis Spyrakos1, Sonia Makarona1, *GEORGIOS KRITSELIS*2; 1Athens Medical Center, Medical Physics Department, Marousi, Greece, 2ONCOCARE, ATHENS MEDICAL CENTRE RADIOTHERAPY DEPARTMENT, Marousi, Greece
PP-044: HYPOFRACTIONATED STEREOTACTIC RADIOTHERAPY FOR ORBITAL METASTASES: FEASIBILITY, EARLY OUTCOMES, AND PALLIATIVE EFFECTS
Topic: AS15. SBRT – Head and neck
Presenter: Mrs. Ivana Alerić
Authors: *Ivana Alerić*1,2, Ana Misir Krpan2,3, Jasenka Petrovic Jurcevic4, Nikola Šegedin2, Giovanni Ursi2, Domagoj Kosmina2, Vanda Leipold1,2, Hrvoje Vavro2, Hrvoje Kaučić2, Josip Paladino2, Dragan Schwarz2; 1Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia, 2Specialty Hospital Radiochirurgia Zagreb, Sveta Nedelja, Croatia, 3Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia, 4Eye Health Unit, Ivanic Grad, Croatia
PP-045: IMPLEMENTATION OF STEREOTACTIC BODY RADIOTHERAPY (SBRT) FOR HEAD AND NECK CANCER (HNC)
Topic: AS15. SBRT – Head and neck
Presenter: Nadine Hong
Authors: *Nadine Hong*, Melanie Bauer, Benjamin Harris, Morikatsu Wada, Richard Khor, Sweet Ping Ng; Olivia Newton John Cancer Wellness Centre - Austin Health, Radiation Oncology, Heidelberg, Australia
PP-046: DOSIMETRIC CHARACTERISTICS OF LUNG STEREOTACTIC BODY RADIATION THERAPY ON HALCYON
Topic: AS17. SBRT – Lung
Presenter: Prof. Mi-Hwa Kim
Authors: *Mi-Hwa Kim*, Hae-Jin Park, Jina Kim; Ajou University School of Medicine, Department of Radiation Oncology, Suwon, Korea, Republic of
PP-047: PATTERNS OF SBRT UTILIZATION AND CLINICAL OUTCOMES: TEMPORAL TRENDS, SURVIVAL, AND EARLY MORTALITY
Topic: AS18. SBRT – Oligometastases
Presenter: Jee Suk Chang
Authors: Jae Young Lee1, Sangjoon Park1, Hayeon Ryu2, Woong Sub Koom1, *Jee Suk Chang*1; 1Yonsei Cancer Center, Department of Radiation Oncology, Seoul, Korea, Republic of, 2Yonsei University, College of Medicine, Seoul, Korea, Republic of
PP-048: MR-GUIDED SBRT FOR ADRENAL METASTASES – A SINGLE-INSTITUTION EXPERIENCE OF GTV CHANGES, TOLERABILITY AND EFFICACY
Topic: AS18. SBRT – Oligometastases
Presenter: Dr. Kasri Rahim
Authors: Yew Sin1, Hendrick Tan2, Byrne Hilary3, Eugene Leong2, Tee Lim2, Tommy Liang4, Daniel Hughes2, *Kasri Rahim*1; 1Fiona Stanley Hospital, Murdoch, Australia, 2GenesisCare FSH, Murdoch, Australia, 3GenesisCare Research, Sydney, Australia, 4GenesisCare Murdoch, Murdoch, Australia
PP-049: FRACTIONATED STEREOTACTIC RADIOTHERAPY (FSRT) FOR OLIGOMETASTATIC DISEASE: A SINGLE-CENTER EXPERIENCE FROM BANGLADESH
Topic: AS18. SBRT – Oligometastases
Presenter: Dr. Md Arifur Rahman
Authors: *Md Arifur Rahman*1, Qamruzzaman Chowdhury1, Md. Jobairul Islam2, Md. Akhtaruzzaman3; 1Bangladesh Specialized Hospital PLC, Oncology & Radiotherapy, Dhaka, Bangladesh, 2RadiaLabaid Cancer Hospital & Super Specialty Center, Radiation Oncology Department, Dhaka, Bangladesh, 3Evercare Hospital Chattogram, Radiation Oncology Department, Chattogram, Bangladesh
PP-050: STEREOTACTIC BODY RADIOTHERAPY IN PATIENTS WITH HEPATOCELLULAR CARCINOMA NOT CANDIDATES FOR SURGERY: ONCOLOGICAL RESULTS AT THE NATIONAL INSTITUTE OF MEDICAL SCIENCES AND NUTRITION SALVADOR ZUBIRÁN IN MEXICO
Topic: AS19. SBRT – Pancreas and liver
Presenter: Ofelia Aguiñaga-Orozco
Authors: Christian Haydee Flores-Balcázar, *Ofelia Aguiñaga-Orozco*, Anai Olivares-Ríos, Christian Jesús Orea-Sánchez, Erick Salvador Hernández-Maya, Ana Laura Medina-Batalla; Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Radioterapia y Física Médica, Tlalpan, Mexico
PP-051: STEREOTACTIC BODY RADIATION THERAPY (SBRT) FOR PRIMARY LIVER AND PANCREATIC TUMORS UNDER TOTAL INTRAVENOUS ANESTHESIA
Topic: AS19. SBRT – Pancreas and liver
Presenter: Mrs. Sanja Brezovec
Authors: *Sanja Brezovec*, Marica Keser, Mateja Nožinić; Specialty Hospital Radiochirurgia Zagreb, Sveta Nedelja, Croatia
PP-052: NOVEL APPROACH OF USING LIVER DOME AS SURROGATE FOR REAL TIME MOTION TRACKING OF TUMORS IN LIVER STEREOTACTIC BODY RADIOTHERAPY WITHOUT FIDUCIALS.
Topic: AS19. SBRT – Pancreas and liver
Presenter: Dr. Mariya Deputy
Authors: *Mariya Deputy*1, Sanjay Hunugundmath2, Amit Nirhali2, Sharad Gadhave3; 1Sahyadri super speciality hospital, Radiation Oncology, Pune, India, 2Sahyadri superspeciality hospital, Radiation oncology, Pune, India, 3Sahyadri Hospital, Radiation Oncology, Pune, India
PP-053: SBRT AFTER NEOADJUVANT CHEMOTHERAPY (NAC) FOR LOCALLY ADVANCED PANCREATIC CANCER (LAPC): FIVE YEARS INSTITUTIONAL RESULTS.
Topic: AS19. SBRT – Pancreas and liver
Presenter: Dr. GEORGIOS KRITSELIS
Authors: *GEORGIOS KRITSELIS*; ONCOCARE, ATHENS MEDICAL CENTRE RADIOTHERAPY DEPARTMENT, Marousi, Greece
PP-054: APPLICABILITY OF DEEP LEARNING ASSISTED INTERNAL MARGIN GENERATION IN SBRT FOR HEPATOCELLULAR CARCINOMA USING 4D CT WITH FREE BREATHING
Topic: AS19. SBRT – Pancreas and liver
Presenter: Dr. Eric Ka-Ming LAM
Authors: *Eric Ka-Ming LAM*1, Ben Man-Fei CHEUNG1, Dennis Kwok-Chuen LEUNG1, Victor Ho-Fun LEE2, Mai-Yee LUK1, Kwok-Keung YUEN1; 1Department of Clinical Oncology, Queen Mary Hospital, Hong Kong, Hong Kong PRC, 2Department of Clinical Oncology, Centre of Cancer Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong PRC
PP-055: A PROSPECTIVE PILOT STUDY ON EFFICACY AND SAFETY OF PALLIATIVE SPATIAL FRACTIONATED RADIATION THERAPY FOR LIVER TUMOURS
Topic: AS19. SBRT – Pancreas and liver
Presenter: Prof. Victor Ho-Fun Lee
Authors: *Victor Ho-Fun Lee*, Matthew Yik, Sum Yin Chan, Shing Chung CHEUNG, Chor Yi Ng; The University of Hong Kong, Department of Clinical Oncology, Hong Kong, Hong Kong PRC
PP-056: ASSESSING POSITIONAL ACCURACY AND BODY-SHAPE REPRODUCIBILITY OF BELT INTEGRATED WITH AIRBAG VERSUS THERMOPLASTIC MASK WITH AIRBAG COMPRESSION SYSTEMS FOR ABDOMINAL RADIOTHERAPY MOTION MANAGEMENT IN STEREOTACTIC BODY RADIOTHERAPY.
Topic: AS19. SBRT – Pancreas and liver
Presenter: Dipl.Phys Amit Nirhali
Authors: *Amit Nirhali*, Vishram Naik, Rupesh Pagare, Jaideep Khadke, Sanjay Hunugundmath, Mariya Deputy, Shreya Dwivedi, Sharad Gadhave, Bhushan Hole; Sahyadri superspeciality hospital, Radiation Oncology, Pune, India
PP-057: NABAA EFFICIENCY INDEX (NEI) FOR IMPROVED CROSS-MODALITY PLAN QUALITY ASSESSMENT IN GAMMA KNIFE AND LINAC-BASED SRS
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Nabaa Alsiraj
Authors: *Nabaa Alsiraj*1, Mustafa Almusawi2, Hayder Alabedi3, Rozilawati Ahmed1, Moneer Faraj4; 1Programme of Diagnostic Imaging and Radiotherapy, Faculty of Health Sciences, National University of Malaysia, Radiotherpy, Kuala Lumpur, Malaysia, 2Dean of faculty of medical science, Jabir Ibn Hayyn University, Dean, Al-Najaf, Iraq, 3CEO, Warith International Cancer Institute (WICI), CEO, Karbala, Iraq, 4College of medicine/Baghdad University, Surgery, Baghdad, Iraq
PP-058: COGNITIVE AND QUALITY OF LIFE (QOL) DATA AT 6 MONTHS POST STEREOTACTIC RADIOSURGERY (SRS).
Topic: AS01. SRS – Brain metastases
Presenter: Mrs. Anna Bangiri
Authors: *Anna Bangiri*, Stefan Pszczolkowski, Stefanie Thust, Paul Morgan; University of Nottingham, School of Medicine, Nottingham, United Kingdom
PP-059: VIABLE TUMOR RECURRENCE IS A MAJOR CAUSE OF LOCAL FAILURE AFTER BEVACIZUMAB THERAPY FOR RADIATION NECROSIS IN BRAIN METASTASES TREATED WITH STEREOTACTIC RADIOSURGERY
Topic: AS01. SRS – Brain metastases
Presenter: Prof.Dr. Young Hyun Cho
Authors: *Young Hyun Cho*; Asan Medical Center, Neurosurgery, Seoul, Korea, Republic of
PP-060: A RETROSPECTIVE SINGLE-INSTITUTION ANALYSIS OF STEREOTACTIC RADIOSURGERY FOR PATIENTS WITH 10 OR MORE BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Eireann Cosgriff
Authors: *Eireann Cosgriff*, Rachel Stensmyr, Tim Wang, Harriet Gee, Eric Hau, Lucinda Burke, Najmun Nahar; Sydney West Radiation Oncology Network, Crown Princess Mary Cancer Centre, Westmead, Australia
PP-061: MACHINE LEARNING FOR PREDICTING RADIATION NECROSIS AFTER SRS OF BRAIN METASTASES: A COMPREHENSIVE DOSIMETRIC AND CLINICAL ANALYSIS
Topic: AS01. SRS – Brain metastases
Presenter: Prof.Dr. Andrey Golanov
Authors: Arina Nadina1, Natalia Antipina2, Elena Vetlova2, *Andrey Golanov*2; 1National Research Nuclear University “MEPhI”, Moscow, Russian Federation, 2National Medical Research Center of Neurosurgery named after N.N. Burdenko, Department of Radiotherapy, Moscow, Russian Federation
PP-062: SMART (TROG 23.02): A MULTI-CENTRE PROSPECTIVE TRIAL OF SINGLE AND MULTI-FRACTION PREOPERATIVE RADIOSURGERY FOR BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Neda Haghighi
Authors: *Neda Haghighi*1,2, Andrew Davidson3, Mark Pinkham4, Hien Le5; 1Sir Peter MaCallum Department of Oncology, University of Melbourne, Melbourne, Australia, 2Peter McCallum Cancer Centre, Icon Cancer Centre, Radiation Oncology, Melbourne, Australia, 3Peter McCallum Cancer Centre, Icon Cancer Centre, Surgery, Melbourne, Australia, 4Princess Alexandra Hospital, Radiation Oncology, Woolloongabba, Australia, 5Royal Adelaide Hospital, Addelaide, Australia
PP-063: IMPACT OF TUMOUR DISTANCE FROM ISOCENTRE ON LOCAL CONTROL IN FRAMELESS SINGLE-ISOCENTRE SRS FOR MULTIPLE BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Georgia Harris
Authors: *Georgia Harris*1,2, Lucinda Burke1,3, Ee Siang Choong4, Helen Lo5, Nitya Patanjali1, Ben Jonker2,6, Gillian Heller7, Johnny Morales1; 1Chris O'Brien Lifehouse, Radiation Oncology, Camperdown, Australia, 2University of Sydney, Central Clinical School, Faculty of Medicine, Camperdown, Australia, 3Crown Princess Mary Cancer Centre, Department of Radiation Oncology, Westmead Hospital, Sydney, Australia, 4Olivia Newtown John Cancer Centre, Austin Health, Department of Radiation Oncology, Melbourne, Australia, 5Mid North Coast Cancer Institute, Department of Radiation Oncology, Port Macquarie, Australia, 6Chris O'Brien Lifehouse, Department of Neurosurgery, Camperdown, Australia, 7University of Sydney, NHMRC Clinical Trials Centre, Faculty of Medicine and Health, Camperdown, Australia
PP-064: GAMMA KNIFE RADIOSURGERY FOR NUMEROUS BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Yoshiyasu Iwai
Authors: *Yoshiyasu Iwai*, Keishou Yamazato, Masahiko Kitano, Yoshiko Tominaga; Tominaga Hospital, Department of Neurosurgery, Osaka, Japan
PP-065: TRENDS IN CRANIAL RADIOTHERAPY: A SINGLE-INSTITUTION EXPERIENCE HIGHLIGHTING THE ROLE OF STEREOTACTIC RADIOSURGERY
Topic: AS01. SRS – Brain metastases
Presenter: Dr. HIMANSHI JAIN
Authors: *HIMANSHI JAIN*, Puneet Bagri, Amruta Tripathy, Sundaram Pillai; SHREE KRISHNA HOSPITAL, RADIATION ONCOLOGY, Anand, India
PP-066: THE USEFULNESS OF STEREOTACTIC FRACTIONATED RADIOTHERAPY USING GAMMA KNIFE ICON MASK SYSTEM FOR RELATIVELY LARGE BRAINSTEM METASTASES.
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Takuya Kawabe
Authors: *Takuya Kawabe*, Yuta Oi, Manabu Sato; Rakusai Shimizu Hospital, Kyoto-shi, Kyoto, Japan
PP-067: TREATMENT OUTCOME OF STEREOTACTIC RADIOSURGERY IN THE SMALL AND MEDIUM-SIZED CYSTIC METASTATIC BRAIN TUMORS
Topic: AS01. SRS – Brain metastases
Presenter: Prof. In-Young Kim
Authors: *In-Young Kim*, Sue-Jee Park, Yeong-Jin Kim, Tae-Young Jung, Kyung-Sub Moon, SHIN JUNG, SAHOE LIM, Ji-Hyun Choi; Chonnam National University Hwasun Hospital, Brain Tumor Clinic & Gamma Knife center, Department of Neurosurgery, Hwasun, Korea, Republic of
PP-068: TREATMENT OUTCOME OF STEREOTACTIC RADIOSURGERY FOR METASTATIC BRAIN TUMORS FROM SQUAMOUS CELL LUNG CANCER
Topic: AS01. SRS – Brain metastases
Presenter: Prof. In-Young Kim
Authors: *In-Young Kim*, Joo-Hwan Lee, Sue-Jee Park, Yeong-Jin Kim, Tae-Young Jung, Kyung-Sub Moon, SHIN JUNG, SAHOE LIM, Ji-Hyun Choi; Chonnam National University Hwasun Hospital, Brain Tumor Clinic & Gamma Knife center, Department of Neurosurgery, Hwasun, Korea, Republic of
PP-069: CHECKING MULTI-MET LESIONS WITH IMAGING VARIATION METHOD FOR BRAIN STEREOTACTIC RADIOSURGERY (SRS)
Topic: AS01. SRS – Brain metastases
Presenter: Prof.Dr. Kaile Li
Authors: *Kaile Li*, Corbin Helis; Decypher, Fort Belvoir Community Hospital, Fort Belvoir, VA, United States of America
PP-070: DOSE, TARGETS, OARS FOR BRAIN RADIOSURGERY WITH PREVIOUS TREATMENTS BY VARIOUS MODALITIES AT DIFFERENT HOSPITALS
Topic: AS01. SRS – Brain metastases
Presenter: Prof. Lanchun Lu
Authors: *Lanchun Lu*1, Matthew Meineke1, Nilendu Gupta1, Raju Raval1, Evan Thomas1, Raj Singh1, Simeng Zhu2, Fatemeh Fekrmandi1, Arnab Chakravarti1, John Grecula1, Joshua Palmer1, Dukagjin Blakaj1; 1Department of Radiation Oncology, Ohio State University Wexner Medical Center, Columbus, OH, United States of America, 2Ohio State University Wexner Medical Center, Radiation Oncology, Columbus, OH, United States of America
PP-071: REVIEW OF THE FIRST 1000 PATIENTS TREATED WITH GAMMA KNIFE AT THE PETER MAC CALLUM CANCER CENTRE
Topic: AS01. SRS – Brain metastases
Presenter: Adam Murphy
Authors: *Adam Murphy*1, Neda Haghighi2, Andrew Davidson1,2; 1Royal Melbourne Hospital, Neurosurgery Department, Melbourne, Australia, 2Sir Peter MaCallum Department of Oncology, University of Melbourne, Melbourne, Australia
PP-072: REAL-WORLD CYBER-SPACE: REPEAT LINAC-BASED SRS FOR HIGH-VELOCITY MULTIPLE BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Alejandro Rodríguez Camacho
Authors: *Alejandro Rodríguez Camacho*1, Sergio Moreno2, José Omar Santellán Hernández2, EVA HERNANDEZ NERI2, Guillermo Gutierréz Aceves2, Miguel Celis-Lopez3, Enrique Caballé Pérez1, Oscar Arrieta-Rodríguez4, Bernando Cacho Díaz1, Monica Serrano Murillo1, Talia Wegman Ostrosky1, Alipio González Vázquez1, Alberto Gonzalez Aguilar1, Dharely Cid Sánchez1, Juan Romero Valencia2; 1Instituto Nacional de Cancerologia, Unidad funcional de Neurooncología, Mexico City, Mexico, 2National Institute of Neurology and Neurosurgery, Radiosurgery, Mexico City, Mexico, 3Instituto Nacional de Neurologia y Neurocirugia, Radioneurosurgery, Mexico City, Mexico, 4Instituto Nacional de Cancerología, Ciudad De México, Mexico
PP-073: FIRST REPORT OF STAGED ADAPTIVE FRAMELESS STEREOTACTIC RADIOSURGERY IN 3 “PULSES” TO SALVAGE BRAIN METASTASES THAT FAILED PRIOR RADIOSURGERY
Topic: AS01. SRS – Brain metastases
Presenter: Prof. Arjun Sahgal
Authors: Daniel Tong1, Dana Shor1, Beibei Zhang1, Mark Ruschin1, Jay Detsky1, Deepak Dinakaran1, Hany Soliman1, Chia-Lin Tseng1, Leodante da Costa2, Sunit Das3, Chris Heyn4, Lori Holden1, Eshetu Atenafu5, *Arjun Sahgal*1, Hanbo Chen1; 1Sunnybrook Odette Cancer Centre, Department of Radiation Oncology, Toronto, Canada, 2Sunnybrook Health Sciences Centre, Division of Neurosurgery, Toronto, Canada, 3Division of Neurosurgery, St. Michael’s Hospital, Toronto, Canada, 4Sunnybrook Health Sciences Centre, Department of Medical Imaging, Toronto, Canada, 5University Health Network, Department of Biostatistics, Toronto, Canada
PP-074: OUTCOMES IN LONG-TERM SURVIVORS TREATED WITH STEREOTACTIC CRANIAL RADIOTHERAPY FOR BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: PD Dr. Christina Schroeder
Authors: Paul Windisch1,2, Robert Förster1,2, Daniel Zwahlen2, *Christina Schröder*1,2; 1Inselspital, Bern University Hospital, University of Bern, Department of Radiation Oncology, Bern, Switzerland, 2Cantonal Hospital Winterthur, Department of Radiation Oncology, Winterthur, Switzerland
PP-075: PATTERNS OF SALVAGE RADIOTHERAPY AFTER STEREOTACTIC RADIOTHERAPY AND WHOLE-BRAIN RADIOTHERAPY FOR BRAIN METASTASES: A RETROSPECTIVE ANALYSIS
Topic: AS01. SRS – Brain metastases
Presenter: PD Dr. Christina Schroeder
Authors: Robert Förster1, Paul Windisch1, Daniel Zwahlen1, *Christina Schröder*1,2; 1Kantonsspital Winterthur, Winterthur, Switzerland, 2Inselspital, Bern University Hospital, University of Bern, Department of Radiation Oncology, Bern, Switzerland
PP-076: FRACTIONATED SRT FOR BRAIN METASTASES WITH LARGE CUMULATIVE VOLUME: DATA FROM A SINGLE INSTITUTION 5-YEAR COHORT
Topic: AS01. SRS – Brain metastases
Presenter: Rachel Stensmyr
Authors: *Rachel Stensmyr*1, Eireann Cosgriff1, Najmun Nahar1, Tim Wang1,2, Harriet Gee1,2,3, Eric Hau1,4, Lucinda Burke1,2; 1Sydney West Radiation Oncology Network, Crown Princess Mary Cancer Centre, Westmead, Australia, 2The University of New South Wales, Sydney, Australia, Sydney, Australia, 3Genome Integrity Unit, Children’s Medical Research Institute, The University of Sydney, Sydney, Australia, 4University of Sydney, Sydney, Australia
PP-077: COMPARATIVE DOSIMETRIC AND CLINICAL EVALUATION OF GAMMA KNIFE AND VERSA HD SRS FOR MULTIPLE BRAIN METASTASES
Topic: AS01. SRS – Brain metastases
Presenter: Dr. Anup Vinayan
Authors: Abdul Hussein Mroue1, *Anup Vinayan*1, Luis Aznar-Garcia1, Mahmoud Younes2, Ian Paddick3, Diana Grishchuk3, Ana Luisa Luis3, Renay Joss2; 1GenesisCare UK, Oxford, United Kingdom, 2GenesisCare UK, London, United Kingdom, 3Medical Physcis Limited, London, United Kingdom
PP-078: LONG-TERM SAFETY AND EFFICACY OF STAGED STEREOTACTIC RADIOSURGERY WITH OMMAYA RESERVOIR ASPIRATION FOR LARGE CYSTIC BRAIN METASTASES:
Topic: AS01. SRS – Brain metastases
Presenter: Dr. SHOJI YOMO
Authors: *SHOJI YOMO*; Aizawa Hospital, Division of Radiation Oncology, Aizawa Comprehensive Cancer Center, Matsumoto, Japan
PP-079: FEASIBILITY STUDY OF A 3-DIMENSIONAL DOSIMETRY PHANTOM FOR LEKSELL GAMMA KNIFE PERFEXION
Topic: AS01. SRS – Brain metastases
Presenter: Dipl.Phys KyoungJun Yoon
Authors: *KyoungJun Yoon*, byungchul cho, jungwon kwak, Doheui Lee, Young Hyun Cho; Asan Medical Center, Radiosurgery center, Seoul, Korea, Republic of
PP-080: GAMMA KNIFE RADIOSURGERY FOR THE UVEAL MELANOMA: PRELIMINARY ASSESSMENT AT CHO RAY HOSPITAL
Topic: AS03. SRS – Gliomas & other primary brain tumors
Presenter: PD Dr. NGUYEN BINH
Authors: *NGUYEN BINH*, HUYNH CHUONG; Cho Ray hospital, Gamma Knife unit, Neurosurgery Department, Ho Chi Minh, Viet Nam
PP-081: RADIOSURGICAL TREATMENT OF GLIOBLASTOMA RECURRENCES
Topic: AS03. SRS – Gliomas & other primary brain tumors
Presenter: Prof.Dr. Andrey Golanov
Authors: IVAN OSINOV1,2, *Andrey Golanov*1,2,3, Valeriy Kostyuchenko1, Alexander Savateev1,2, Denis Semenov1, Irina Yurikova1,2; 1Moscow Gamma Kinfe Centre, Moscow, Russian Federation, 2Burdenko Neurosurgery Istitiute, Moscow, Russian Federation, 3Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
PP-082: STEREOTACTIC RADIOSURGERY FOR PILOCYTIC ASTROCYTOMA: A SINGLE CENTER RETROSPECTIVE STUDY
Topic: AS03. SRS – Gliomas & other primary brain tumors
Presenter: Dr. Selcuk Peker
Authors: Sukran Senyurek1, Ilayda Kayir2, Dogu Yildirim3, Ali Duzkalir3, Mehmet Askeroglu4, *Selcuk Peker*5; 1Koc University Hospital, Radiation Oncology, Istanbul, Turkey, 2Bahcesehir University, School of Medicine, Istanbul, Turkey, 3Koc University Hospital, Neurosurgery, Istanbul, Turkey, 4Koc University Hospital, Gamma Knife Center, Istanbul, Turkey, 5Koc University, School of Medicine, Neurosurgery, Istanbul, Turkey
PP-083: RETROSPECTIVE STUDY OF LONG-TERM TUMOR CONTROL AND QUALITY OF LIFE IN LOW-GRADE GLIOMA PATIENTS TREATED WITH GAMMA KNIFE RADIOSURGERY.
Topic: AS03. SRS – Gliomas & other primary brain tumors
Presenter: Abid Saleem
Authors: *Abid Saleem*, Sohail Hussain, Khoula Azmat; DOW UNIVERSITY OF HEALTH SCIENCES, GAMMA KNIFE RADIOSURGERY, Karachi, Pakistan
PP-084: THE CLINICAL EFFICACY AND SAFETY OF HYPOFRACTIONATED STEREOTACTIC RADIOTHERAPY COMBINED WITH LOW-DOSE BEVACIZUMAB IN THE TREATMENT OF RECURRENT GLIOBLASTOMA
Topic: AS03. SRS – Gliomas & other primary brain tumors
Presenter: Assoc.Prof. Xin Wang
Authors: *Xin Wang*1, Enmin Wang2, WEI ZOU1; 1HUASHAN HOSPITAL ,FUDAN UNIVERSITY, Neurosurgery, Shanghai, China, 2Huashan Hospital, Fudan University; National Center for Neurological Disorders, CyberKnife Center, Neurosurgical Department, Shanghai, China
PP-085: CLINICAL OUTCOMES OF INTRACRANIAL MENINGIOMAS TREATED WITH STEREOTACTIC RADIOSURGERY: AN EIGHT-YEAR EXPERIENCE FROM A DEDICATED SRS PROGRAM
Topic: AS06. SRS – Meningiomas
Presenter: Prof.Dr. LUCAS CAUSSA
Authors: *LUCAS CAUSSA*1, JOSE GILARDI1, FRANCO MACIEL1, ARIEL GOMEZ PALACIOS1, OFELIA PEREZ CONCI1, BELEN RAIDEN1, CAROL RIOS1, MARIANO SALUM1, JULIETA ABATE DAGA1, CAMILA VARGAS1, FERNANDO MARTINI1, IVAN CHARIF COLL1, LUCIANA BRUN1, EDGARDO GARRIGO1, CAROLINE DESCAMPS1, EGLE AONE1, EDGARD FALCO1, DIEGO FERNANDEZ1, ENRIQUE HERRERA2, LAURA HARON3, MARIA DIAZ VAZQUEZ1, GUSTAVO FERRARIS1; 1CENTRO DE RADIOTERAPIA DEAN FUNES, RADIOTERAPIA, Cordoba, Argentina, 2SANATORIO ALLENDE, NEUROCIRUGIA, Cordoba, Argentina, 3SANATORIO ALLENDE, ONCOLOGIA, Cordoba, Argentina
PP-086: RAPID RESOLUTION OF PULSATILE TINNITUS AFTER GAMMA KNIFE RADIOSURGERY FOR TENTORIAL MENINGIOMA INVOLVING THE TRANSVERSE SINUS
Topic: AS06. SRS – Meningiomas
Presenter: Dr. Taegon Kim
Authors: *Taegon Kim*, SEONG-HYUN PARK, Jeong-Hyun Hwang, Byungmok Kim, Sun Young Park, Ji Hye Park; Kyungpook National University Hospital, Neurosurgery, Daegu, Korea, Republic of
PP-087: CLINICAL OUTCOMES OF REPEAT GAMMA KNIFE RADIOSURGERY FOR PROGRESSIVE WHO GRADE 1 MENINGIOMA
Topic: AS06. SRS – Meningiomas
Presenter: Dr. Zhiyuan Xu
Authors: *Zhiyuan Xu*1, David Schlesinger2, Jason Sheehan3; 1Gamma Knife Center, Neurosurgery, Charlottesville, VA, United States of America, 2University of Virginia Health System, Radiation Oncology, Charlottesville, VA, United States of America, 3University of Virginia Health System, Neurological Surgery, Charlottesville, VA, United States of America
PP-089: FAILURE PATTERNS OF STEREOTACTIC RADIOSURGERY/STEREOTACTIC RADIOTHERAPY FOR PITUITARY NEURO-ENDOCRINE TUMORS
Topic: AS07. SRS – Pituitary adenomas
Presenter: MD Yoshimasa Mori
Authors: *Yoshimasa Mori*1,2, Yasuhiro Matsushita2, Kazuyuki Koyama2, Sachiko Kato2, Atsuo Masago2; 1Shin-yurigaoka General Hospital, Center for Advanced-IGRT, Kawasaki, Japan, 2Ookuma Hospital, Gamma Knife Center, Nagoya, Japan
PP-090: RADIOSURGICAL THIRD VENTRICULOSTOMY FOR OBSTRUCTIVE HYDROCEPHALUS: A 16-YEAR INSTITUTIONAL EXPERIENCE
Topic: AS11. SRS – Rare brain disorders & emerging indications
Presenter: Dr. Guillermo Gutiérrez-Aceves
Authors: *Guillermo Gutiérrez-Aceves*1, Humberto Flores-Velasco1,2, Sergio Moreno-Jimenez1, Miguel Celis-Lopez1, Alejandro Rodríguez Camacho1, Jesús Alejandro Rodríguez Torres1, Mariana Hernández-Bojórquez3, Andrea García-Bitar1, Jose Cordero-Benitez1, Irving Ortiz-Cabrera1, Felipe Nares-Lopez4, Jose Herrera-Gonzalez1; 1Instituto Nacional de Neurologia y Neurocirugia, Radioneurosurgery, Mexico City, Mexico, 2Universidad Autonoma de Chiapas, Faculty of Human Medicine, Tuxtla Gutierrez, Mexico, 3Centro Medico ABC Observatorio, Centro de Cancer ABC, Mexico City, Mexico, 4Hospital Star Medica Aguascalientes, Neurosurgery, Aguascalientes, Mexico
PP-091: FACTORS ASSOCIATED WITH ACUTE SEIZURES FOLLOWING GAMMA KNIFE (GK) RADIOSURGERY FOR ARTERIOVENOUS MALFORMATIONS (AVMS) IN A SINGLE AUSTRALIAN CENTRE
Topic: AS09. SRS – Vascular disorders
Presenter: Dr. Kimberley Budgen
Authors: *Kimberley Budgen*1, Hyun-Jae Cho2, Mark Pinkham1, Mihir Shanker1, Michael Jenkins1, Heath Foley1, Ryan Lusk1, Bruce Hall3, Sarah Olson3, Rumal Jayalath3, Trevor Watkins2, Matthew Foote1, Michael Huo1; 1Princess Alexandra Hospital, Department of Radiation Oncology, Brisbane, Australia, 2Princess Alexandra Hospital, Department of Medical Imaging, Brisbane, Australia, 3Princess Alexandra Hospital, Department of Neurosurgery, Brisbane, Australia
PP-092: SINGLE VS MULTIFRACTION STEREOTACTIC RADIOSURGERY FOR ARTERIOVENOUS MALFORMATION
Topic: AS09. SRS – Vascular disorders
Presenter: Dr. Mariya Deputy
Authors: *Mariya Deputy*1, Sanjay Hunugundmath2, Amit Nirhali1, Sharad Gadhave2; 1Sahyadri super speciality hospital, Radiation Oncology, Pune, India, 2Sahyadri Hospital, Radiation Oncology, Pune, India
PP-093: STEREOTACTIC RADIOSURGERY FOR VEIN OF GALEN ARTERIOVENOUS MALFORMATION: OUTCOMES FROM A SINGLE-CENTER STUDYSTEREOTACTIC RADIOSURGERY FOR VEIN OF GALEN ARTERIOVENOUS MALFORMATION: OUTCOMES FROM A SINGLE-CENTER STUDY
Topic: AS09. SRS – Vascular disorders
Presenter: Prof.Dr. Andrey Golanov
Authors: Arina Lestrovaya1, *Andrey Golanov*1, Sergej Yakovlev2, Adam Adaev2, Victor Sorokin2, Anastasiya Kuznecova1, Igor Pronin3, Gleb Danilov4, Dmitrii Usachev2; 1Burdenko Neurosurgical Institute, Radiotherapy and Radiosurgery, Moscow, Russian Federation, 2Burdenko Neurosurgical Institute, Vascular Neurosurgery, Moscow, Russian Federation, 3Burdenko Neurosurgical Institute, Rengenology and Radiology, Moscow, Russian Federation, 4Burdenko Neurosurgical Institute, Laboratory of Statisics and Mathematics, Moscow, Russian Federation
PP-094: REPEAT STEREOTACTIC RADIOSURGERY FOR DEEP-SEATED CEREBRAL ARTERIOVENOUS MALFORMATIONS IN THE BASAL GANGLIA, THALAMUS, CORPUS CALLOSUM, AND BRAINSTEM.
Topic: AS09. SRS – Vascular disorders
Presenter: Dr. So Young Ji
Authors: *So Young Ji*, Ho Kang, Kihwan Hwang, Ji Woo An, Chae-Yong Kim, Jung Ho Han; Seoul national university Bundang hospital, Department of Neurosurgery, Seongnam-si, Gyeonggi-do,, Korea, Republic of
PP-095: GAMMA KNIFE RADIOSURGERY FOR A RADIATION-INDUCED ARTERIOVENOUS MALFORMATION DEVELOPING AFTER CHILDHOOD WHOLE-BRAIN RADIATION THERAPY (WBRT): A CASE REPORT
Topic: AS09. SRS – Vascular disorders
Presenter: Dr. HISAE MORI
Authors: *HISAE MORI*; National Cerebral and Cardiovascular Center, Department of Neurosurgery, Suita, Japan
PP-096: GAMMA KNIFE RADIOSURGERY FOR PURE ARTERIAL MALFORMATION ASSOCIATED WITH PSEUDOANEURYSM: CASE REPORT AND LITERATURE IMPLICATIONS
Topic: AS09. SRS – Vascular disorders
Presenter: Ji Hye Park
Authors: *Ji Hye Park*, Byungmok Kim, SEONG-HYUN PARK, Sun Young Park, Jeong-Hyun Hwang; Kyungpook National University Hospital, Neurosurgery, Daegu, Korea, Republic of
PP-097: HYPOFRACTIONATED GAMMA KNIFE RADIOSURGERY FOR LARGE CEREBRAL ARTERIOVENOUS MALFORMATIONS: A RETROSPECTIVE COHORT STUDY OF 54 PATIENTS
Topic: AS09. SRS – Vascular disorders
Presenter: Prof.Dr. Selçuk Peker
Authors: DOGU CIHAN YILDIRIM, Orbay Askeroğlu, Ali Duzkalir, *Selçuk Peker*; KOÇ UNIVERSITY HOSPITAL, Gamma Knife Radiosurgery, Istanbul, Turkey
PP-098: RADIOSURGERY FOR SECONDARY EPILEPSY ASSOCIATED WITH DOUBLE BRAIN ARTERIOVENOUS MALFORMATION
Topic: AS09. SRS – Vascular disorders
Presenter: Dr. Jose Omar Santellan
Authors: *Jose Omar Santellan*1, Emmanuel Salazar1, Alejandro Rodríguez Camacho2, Jesús Alejandro Rodríguez Torres2; 1Angeles Pedregal, Neurosurgery, Mexico City, Mexico, 2National Institute of Neurology and Neurosurgery, Radiosurgery, Mexico City, Mexico
PP-099: AUDIO-VESTIBULAR PROFILE AND REHABILITATION EFFICACY IN VESTIBULAR SCHWANNOMA PATIENTS UNDERGOING LINAC-BASED RADIOSURGERY
Topic: AS05. SRS – Vestibular schwannomas
Presenter: Dipl.Phys Izabela Baranowska
Authors: *Izabela Baranowska*1, Tomasz Stankiewicz2; 1St Johns’ Oncology Center in Lublin, Department of Medical Physics, Lublin, Poland, 2St Johns’ Oncology Center in Lublin, Department of Otorhinolaryngology, Lublin, Poland
PP-100: TWO-WEEK INTERVAL HYPOFRACTIONATED GAMMA KNIFE RADIOSURGERY FOR VESTIBULAR SCHWANNOMA: CLINICAL AND VOLUMETRIC OUTCOMES
Topic: AS05. SRS – Vestibular schwannomas
Presenter: Prof.Dr. Seung Woo Hong
Authors: *Seung Woo Hong*1, Won Seok Chang2; 1Hanyang university, 서울특별시, Korea, Republic of, 2Severance hospital, Neurosurgery, Seoul, Korea, Republic of
PP-101: LONG-TERM OUTCOMES AND HEARING PRESERVATION AFTER RADIOTHERAPY (FSRT/SRS) FOR VESTIBULAR SCHWANNOMAS: A RETROSPECTIVE REVIEW
Topic: AS05. SRS – Vestibular schwannomas
Presenter: Dr. Sanjay Hunugundmath
Authors: *Sanjay Hunugundmath*, Mariya Deputy, Amit Nirhali, Vishram Naik, Shreya Dwivedi, Aditya vikramacharya; Sahyadri superspeciality hospital, Radiation oncology, Pune, India
PP-102: STEREOTACTIC ABLATIVE RE-IRRADIATION FOR RECURRENT CHOROIDAL MELANOMAS AFTER PLAQUE BRACHYTHERAPY
Topic: AS14. SRS / SBRT – Ocular disorders
Presenter: Dr. Martin Tran
Authors: Eric Fong1,2, *Martin Tran*2, Wenchang Wong1,2; 1University of New South Wales, School of Clinical Medicine, Randwick, Australia, 2Prince of Wales Hospital, Radiation Oncology, Randwick, Australia
PP-103: SINGLE FRACTION STEREOTACTIC RADIOSURGERY AS A TREATMENT OF CHOICE FOR DIFFUSE CHOROIDAL HEMANGIOMA IN PATIENTS WITH STURGE-WEBER SYNDROME
Topic: AS14. SRS / SBRT – Ocular disorders
Presenter: Prof. Andrey Yarovoy
Authors: *Andrey Yarovoy*1, Andrey Golanov2, Valerij Kostjuchenko3, Vera Yarovaya1, Arina Lestrovaya2, Aiza Galbatsova1; 1S.Fyodorov Eye Microsurgery Federal State, Ocular Oncology and Radiotherapy, Moscow, Russian Federation, 2National Medical Research Center of Neurosurgery named after N.N. Burdenko, Department of Radiotherapy, Moscow, Russian Federation, 3Moscow Gamma Knife Center, Moscow, Russian Federation
PP-104: A RANDOMIZED PHASE III STUDY COMPARING STEREOTACTIC BODY RADIOTHERAPY (SBRT) VERSUS CONVENTIONAL PALLIATIVE RADIOTHERAPY (CRT) FOR PARTICIPANTS WITH PAINFUL NON-SPINE BONE METASTASES (NCT06391242)
Topic: AS13. SRS / SBRT – Spine (primary & secondary tumors)
Presenter: Prof. Arjun Sahgal
Authors: Wendy Parulekar1, *Arjun Sahgal*2, Tim Nguyen3, G. Laura Masucci4, Kristopher Dennis5, Emma Dunne6, Anand Swaminath7, Isabelle Thibault8, Jillian Tsai9, Pejman Maralani10, Michael Brundage11, Marc Kerba12, Ryan Kelly1, Wei Tu1; 1Canadian Cancer Trials Group, Sinclair Cancer Research Institute, Queen's University, Kingston, Canada, 2Sunnybrook Health Sciences Centre, Dept of Radiation Oncology, Toronto, Canada, 3London Regional Cancer Program, London, Canada, 4Centre hospitalier de l'Universite de Montreal, Department de radio-oncologie, Montreal, Canada, 5The Ottawa Hospital and the University of Ottawa, Ottawa, Canada, 6BC Cancer, Vancouver, Dept of Radiation Oncology, Vancouver, Canada, 7Juravinski Cancer Centre, Dept of Oncology, Hamilton, Canada, 8Centre integre de cancerologie du CHU de Quebec, CHU de Quebec - Universite Laval, Quebec, Canada, 9UHN - Princess Margaret Hospital, Dept of Radiation Oncology, Toronto, Canada, 10Sunnybrook Health Sciences Centre, Dept of Medical Imaging, University of Toronto, Toronto, Canada, 11Kingston Health Sciences Centre, Kingston, Canada, 12University of Calgary, Cumming School of Medicine, Dept of Radiation Oncology, Calgary, Canada