Quality Assurance for Diffusion Tensor Imaging Using ACR Phantom: Comparative Analysis with 6, 15 and 32 Directions at 1.5T and 3.0T MRI Systems
Jung-Hoon Lee 1,2 , Sang-Young Kim 1 , Do-Wan Lee 1 , Jin-Young Jung 1 , Kyu-Ho Song 1 , and Bo-Young Choe 1
Department of Biomedical Engineering,
Research Institute of Biomedical Engineering, College of
Medicine, The Catholic University of Korea, Seoul,
of Radiology, Kyunghee Medical Center, Seoul, Seoul,
We evaluated geometric accuracy, slice position
accuracy, image intensity uniformity, percent-signal
ghosting and, low-contrast object detectability provided
by ACR Guidance as well as image distortion, ADC and FA
values measured with 6, 15, and 32 directions at 1.5T
and 3.0T MR systems.
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