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Results for "cavity brain": 11 found

A Dosimetric Analysis between Surgically Targeted (STaRT) Radiation Therapy and External Beam Stereotactic Radiation Therapy for Glioblastoma Resection Cavities

Authors: Jamieson Baker, Emel Calugaru, Yijian Cao, Jenghwa Chang, Jessica Jung, Jian Liu, Cindy Pham, Anurag Sharma, John Starner, Ching-Ling Teng, Michael A. Trager, Gabriella Wernicke

Affiliation: Northwell, Northwell Health, Radiation Medicine, Northwell Health, Hofstra University Medical Physics Program

Abstract Preview: Purpose: Our hospital network has options to treat recurrent glioblastoma (GBM) with surgically targeted Cesium-131 brachytherapy, external beam stereotactic radiotherapy (SRT) with Varian TrueBeam, H...

A Ground Truth Label-Mediated Method for Improved Bone and Gas Cavity Definition for MRI-Guided Online Adaptive Radiotherapy Workflows Using Synthetic CT Images.

Authors: Benito De Celis Alonso, Braian Adair Maldonado Luna, Gerardo Uriel Perez Rojas, René Eduardo Rodríguez-Pérez, Kamal Singhrao

Affiliation: Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard Medical School, Faculty of Physics and Mathematics, Benemérita Universidad Autónoma de Puebla

Abstract Preview: Purpose: Artificial Intelligence (AI)-generated synthetic CT (sCT) images can be used to provide electron densities for dose calculation for online adaptive MRI-guided stereotactic body radiotherapy (...

Artificial Intelligence Based Auto-Contouring for Organs at Risk in Head and Neck

Authors: Mylinh Dang, Laila A Gharzai, Xinlei Mi, Poonam Yadav

Affiliation: Northwestern Feinberg School of Medicine, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, Northwestern Medicine

Abstract Preview: Purpose: Delineation of organs at risk (OAR) in the head/neck region requires substantial physician time. Many artificial intelligence (AI) based auto-contouring software are commercially available. T...

Commission and Clinical Implementation of the 1st Step-and-Shoot Proton Arc Therapy for Head and Neck Cancer Patient Treatment

Authors: Xiaoda Cong, Rohan Deraniyagala, Xuanfeng Ding, Xiaoqiang Li, Jian Liang, Peilin Liu, Craig Stevens, Xiangkun Xu, Weili Zheng

Affiliation: Corewell Health William Beaumont University Hospital, Corewellhealth William Beaumont University Hospital, William Beaumont University Hospital, Corewellhealth William Beaumont Hospital, Department of Radiation Oncology, Corewell Health William Beaumont University Hospital

Abstract Preview: Purpose:
Commission a step-and-shoot arc therapy(SPArc-step&shoot) for treating head-neck cancer patients as a desired interim milestone toward full dynamic treatment.
Methods:
An in-house de...

Daily Adaptive Treatment Planning with Radixact for Head and Neck Cancer: A Dosimetric Evaluation

Authors: Yong Chen, Christina Henson, Yuchen Qiu, Marti Roper

Affiliation: University of Oklahoma HSC, University of Oklahoma Health Sciences Center, University of Oklahoma, University of Oklahoma Health Science Center

Abstract Preview: Purpose: Traditionally, Head and Neck cancer patients have one or two treatment replans through their treatment course, which fails to account for anatomical changes in position, weight loss, or tumor...

Dose Evaluation of Multiple Gammatiles in Heterogeneous Brain Models Using Egs_Brachy

Authors: Fatemeh Akbari, Artemis Dalby, Nelson A. Miksys, Prarthana Pasricha, Rowan M. Thomson

Affiliation: Ackerman Cancer Center, Carleton University

Abstract Preview: Purpose: To investigate dose evaluations for GammaTile brachytherapy, a novel treatment for brain malignancies. The analysis focuses on the impact of tissue heterogeneities, including the presence of ...

Empowering Young Minds through STEM Education: Engaging High Schoolers in Ghana through Medical Physics.

Authors: Jessica Fagerstrom, Juliana Ama Kplorfia, Abigail N.M. Quaye, Mercy T Schandorf, Bishwambhar Sengupta, Peniel T Twum, Afua A. Yorke

Affiliation: University of Ghana Medical Center, University of Washington, Department of Radiation Oncology, Fred Hutchinson Cancer Center, University of Washington, Medical Equipment and Ancillary Services, Girls Excellence Movement, Global Communities

Abstract Preview: Purpose: To empower and promote diversity in Science, Technology, Engineering, and Mathematics (STEM), an educational presentation and hands-on session were organized to raise awareness of STEM career...

Explainable Xerostomia Prediction with Decoupled High Resolution Class Activation Map

Authors: Junghoon Lee, Todd R. McNutt, Harry Quon, Bohua Wan

Affiliation: Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Johns Hopkins University, Department of Computer Science, Johns Hopkins University

Abstract Preview: Purpose: Xerostomia is a common toxicity in head and neck cancer (HNC) radiotherapy (RT). A few deep learning (DL) models have been proposed to predict the chance of xerostomia 12 months after RT with...

Inter-Fraction Monitoring of Brain Metastases Resection Cavities during Fractionated Stereotactic Radiosurgery on the 0.35 T MRI-Linac

Authors: Eyub Y. Akdemir, Gregory A Azzam, Rupesh Kotecha, Gregory J. Kubicek, Natalia Lutsik, Eric Mellon, Siamak P. Nejad-Davarani, Parag Parikh, Karen C. Snyder

Affiliation: Miami Cancer Institute, Baptist Health South Florida, Department of Radiation Oncology, University of Miami, Henry Ford Health

Abstract Preview: Purpose: Resection cavity volumes shrink gradually over time after surgical resection of brain metastases. Fractionated stereotactic radiosurgery (fSRS) is often delivered to the cavity to prevent rec...

Optimizing Quality Assurance CT Frequency and Setup Uncertainty in Brain Proton Therapy Patients for Reduced Normal Tissue Dose

Authors: Rachel B. Ger, Heng Li, Anh Tran

Affiliation: Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Johns Hopkins University

Abstract Preview: Purpose: Proton therapy patients undergo quality assurance CT scans (QACTs) during treatment to verify dosimetric accuracy and utilize robustness scenarios for setup and range uncertainties. For intra...

Post-Implant Dosimetry (PID) between 1D and 2D Cs-131 Seed Models for Post-Op Cavities in Recurrent GBM Patients

Authors: Cindy Pham, Anurag Sharma, John Starner, Ching-Ling Teng, Michael A. Trager, Gabriella Wernicke

Affiliation: Northwell, Northwell Health, Radiation Medicine, Northwell Health

Abstract Preview: Purpose: Precisely identifying orientation of implanted seeds on post-implant CTs is challenging. This research addresses the dosimetric uncertainties stemming from uncertainties in identifying seed o...