TY - THES AB - Magnetic Resonance (MR) Imaging is imperative to radiation therapy (RT) treatment planning and is used to delineate tumor volumes and normal tissue structures. MR images are susceptible to many sources of significant geometric uncertainties that reduce the geometric fidelity of the image ultimately limiting its application in radiation medicine. The Magnetic Resonance Simulator (MR-SIM) has been shown to reduce setup related uncertainties and is approved for MR-only treatment planning in specific anatomical sites. Stricter Quality Assurance (QA) testing regimens and tolerance for an MR-SIM have recently been published by the American Association of Physicists in Medicine (AAPM) Task Group (TG) 284. Altered QA testing for an MR-SIM, as suggested by TG-284, has not been compared to that performed for a standard diagnostic MR system. AU - Buatti, Jacob S. DA - 2021 DO - 10.6083/n583xv729 DO - DOI ID - 9141 KW - Magnetic Resonance Imaging KW - healthcare quality assurance L1 - https://digitalcollections.ohsu.edu/record/9141/files/Buatti.Jacob.2021.pdf L2 - https://digitalcollections.ohsu.edu/record/9141/files/Buatti.Jacob.2021.pdf L4 - https://digitalcollections.ohsu.edu/record/9141/files/Buatti.Jacob.2021.pdf LK - https://digitalcollections.ohsu.edu/record/9141/files/Buatti.Jacob.2021.pdf N2 - Magnetic Resonance (MR) Imaging is imperative to radiation therapy (RT) treatment planning and is used to delineate tumor volumes and normal tissue structures. MR images are susceptible to many sources of significant geometric uncertainties that reduce the geometric fidelity of the image ultimately limiting its application in radiation medicine. The Magnetic Resonance Simulator (MR-SIM) has been shown to reduce setup related uncertainties and is approved for MR-only treatment planning in specific anatomical sites. Stricter Quality Assurance (QA) testing regimens and tolerance for an MR-SIM have recently been published by the American Association of Physicists in Medicine (AAPM) Task Group (TG) 284. Altered QA testing for an MR-SIM, as suggested by TG-284, has not been compared to that performed for a standard diagnostic MR system. PB - Oregon Health and Science University PY - 2021 T1 - Quality assurance testing evaluation and comparison for magnetic resonance simulator and non-simulator magnetic resonance imaging modalities TI - Quality assurance testing evaluation and comparison for magnetic resonance simulator and non-simulator magnetic resonance imaging modalities UR - https://digitalcollections.ohsu.edu/record/9141/files/Buatti.Jacob.2021.pdf Y1 - 2021 ER -