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Abstract #3353

Reduced Motion Artifact in Super Resolution T2 FSE Multislice MRI: Application to Prostate

Soudabeh Kargar1, Eric A Borisch2, Adam T Froemming2, Roger C Grimm2, Akira Kawashima3, Bernard F King2, Eric G Stinson2, and Stephen J Riederer2
1Mayo Graduate School, Rochester, MN, United States, 2Mayo Clinic, Rochester, MN, United States, 3Mayo Clinic, Scottsdale, AZ, United States

T2-weighted fast spin echo is acquired in virtually all clinical MRI exams; however, it has coarse through-plane vs. in-plane resolution and is thus often acquired in multiple orientations. This extends the exam time. We have shown improved through-plane resolution in T2 FSE prostate MRI by acquiring overlapped slices and accounting for the slice profile in the reconstruction. Due to acquisition of overlapped slices in several passes, an artifact was observed in the reformatted images, due to subtle peristaltic motion. We propose acquiring the phase encoding lines in several segments to suppress the motion artifact observed in the reformatted images.

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