000010144 001__ 10144 000010144 005__ 20250502144946.0 000010144 0247_ $$2DOI$$a10.6083/kw52j881s 000010144 037__ $$aETD 000010144 245__ $$aQuantifying prostate displacement in magnetic resonance imaging with an endorectal coil 000010144 260__ $$bOregon Health and Science University 000010144 269__ $$a2023 000010144 336__ $$aThesis 000010144 502__ $$bM.S. 000010144 502__ $$gMedical Physics 000010144 520__ $$aClinical applications of magnetic resonance imaging (MRI) with an endorectal coil (ERC) in the treatment planning of prostate cancer provides superior soft tissue contrast compared to computed tomography (CT) but may introduce geometric distortions that reduce their utility. While the ability to clearly see cancerous nodules in MRI is helpful in planning a simultaneous-integrated boost treatment where dose is boosted of a specific cancerous lesion, so too is the precise knowledge of the lesion's spatial location. The purpose of this research is to evaluate the deformable image registration of an MRI to a planning CT, and calculate the added margin for transferred contours based on registration uncertainty. 000010144 542__ $$fIn copyright - single owner 000010144 650__ $$aMagnetic Resonance Imaging$$021747 000010144 650__ $$aProstatic Neoplasms$$024731 000010144 650__ $$aRadiotherapy$$025116 000010144 650__ $$aTomography, X-Ray Computed$$027158 000010144 691__ $$aSchool of Medicine$$041369 000010144 692__ $$aDepartment of Diagnostic Radiology$$041407 000010144 7001_ $$aFisher, Helen$$uOregon Health and Science University$$041354 000010144 7201_ $$aBayouth, John$$uOregon Health and Science University$$041354$$7Personal$$eMentor 000010144 8564_ $$9f79fb756-8e20-41cc-ab1c-7dac32d05a18$$s7610435$$uhttps://digitalcollections.ohsu.edu/record/10144/files/Fisher.Helen.2023.pdf$$eEmbargo (2026-06-17)$$247e813649fdf4337280b012abe5ed813$$31 000010144 905__ $$a/rest/prod/kw/52/j8/81/kw52j881s 000010144 909CO $$ooai:digitalcollections.ohsu.edu:10144$$pstudent-work 000010144 980__ $$aTheses and Dissertations