000009596 001__ 9596
000009596 005__ 20240404153107.0
000009596 0247_ $$2DOI$$a10.6083/h128nf502
000009596 037__ $$aIR
000009596 041__ $$aeng
000009596 245__ $$aEffect of hepatic arterial infusion pumps on PET/MR images
000009596 260__ $$bOregon Health and Science University
000009596 269__ $$a2022
000009596 336__ $$aAbstract
000009596 520__ $$aAttenuation correction (AC) in PET/MR imaging significantly alters the displayed PET signal. Modern AC methods forgo the process of directly calculating attenuation through transmission scans by using MR data to assign a tissue class and corresponding attenuation value to each voxel. However, MR AC often fails in the vicinity of medical implants, which create artifacts in the MR signal. Artifacts cause misclassification of tissue in the AC map, leading to miscalculation of PET signal. These issues are anticipated to affect PET/MR images of colorectal cancer patients with hepatic arterial infusion pumps (HAIPs). However, PET/MR imaging of these patients is desired for simultaneous visualization of liver soft tissue contrast and PET tracer uptake. This research investigated the effect of HAIPs on PET signal using various AC methods.
000009596 540__ $$fCC BY
000009596 542__ $$fIn copyright - joint owners
000009596 650__ $$aDiagnostic Imaging$$017700
000009596 650__ $$aImage Processing, Computer-Assisted$$020650
000009596 650__ $$aDrug Therapy$$018086
000009596 650__ $$aColorectal Neoplasms$$028197
000009596 650__ $$aPositron Emission Tomography Computed Tomography$$011903
000009596 650__ $$aMagnetic Resonance Imaging, Interventional$$037612
000009596 650__ $$aPhantoms, Imaging$$031310
000009596 6531_ $$ahepatic arterial infusion pump
000009596 6531_ $$acolorectal cancer
000009596 6531_ $$amedical physics
000009596 6531_ $$achemotherapy
000009596 6531_ $$aattenuation correction
000009596 6531_ $$aliver metastasis
000009596 7001_ $$aWishart, Joseph$$uOregon Health and Science University$$041354
000009596 7001_ $$aWinters, Celeste$$uOregon Health and Science University$$041354
000009596 7001_ $$aMench, Anna$$uOregon Health and Science University$$041354
000009596 7001_ $$aGillan, Derrick$$uOregon Health and Science University$$041354
000009596 711__ $$aResearch Week$$uOregon Health and Science University$$d2022
000009596 8564_ $$9b9ff3c94-a7e5-4fee-ae6f-4fdb9cb29ce7$$s160511$$uhttps://digitalcollections.ohsu.edu/record/9596/files/Wishart-Joseph-OHSU-ResearchWeek-2022.pdf
000009596 905__ $$a/rest/prod/h1/28/nf/50/h128nf502
000009596 980__ $$aResearch Week