Abstract #2571
3D T2w-MRI using a Magnetization-Prepared Golden Angle Radial Sequence with Motion-Corrected ESPIRiT Reconstruction
Isabel Dregely 1 , Fei Han 1 , Ziwu Zhou 1 , Kyung Sung 1 , Peng Hu 1 , and Holden H Wu 1
1
Radiological Sciences, University of
California Los Angeles, Los Angeles, CA, United States
T2-weighted MRI is the central component for body cancer
MRI protocols. In clinical routine T2-w MRI is often
restricted to 2D multi-slice acquisitions, because 3D
acquisition times are relatively long and achieving
robustly good image quality is often hindered by motion
corruption. The purpose of our work was to develop a 3D
T2-w motion robust imaging sequence using a
magnetization-prepared radial imaging technique with
self-navigating motion correction. We found that bulk
and respiratory motion could be reliably detected using
the self-navigating radial sequence. The golden angle
view ordering allowed for flexible retrospective image
reconstruction, allowing removing motion-corrupted
views. ESPIRiT reconstruction yielded good image quality
even in under-sampled data sets.
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