Anugayathri Jawahar1, Ali B Syed 1, Peter Wei 1, Lloyd Estkowski2, Arnaud Guidon3, Perla Subbaiah4, Bruce Lewis Daniel1, and Andreas M Loening 1
1Body MRI, Stanford University, PALO ALTO, CA, United States, 2Global MR Applications & Workflow, GE Healthcare, Waukesha, WI, United States, 3MR Body Applications & Workflow, GE Healthcare, Boston, MA, United States, 4Mathematics, Oakland University, Rochester, MI, United States
Diffusion-weighted imaging (DWI) using echo-planar technique
is highly sensitive to susceptibility artifacts, in prostate MRI this is mainly
due to rectal gas. In the hopes of identifying a sequence with better
robustness to rectal gas, we compared multi-shot DWI using MUSE (with 3 shots)
with a rFOV-DWI acquisition. In this IRB approved prospective study, 3 readers
performed visual grading of MUSE and rFOV-DWI on 50 consecutive prostate MRI studies.
MUSE-DWI and ADC maps showed statistically significant improvements in image
quality for anatomic contour, lesion conspicuity, and overall image quality, as
well as significantly reduced susceptibility artifacts related to rectal gas.
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