Keywords: Gray Matter, Gray Matter, MP2RAGE, Compressed sensing
Motivation: To improve experimental efficiency by reducing scan time without compromising the segmentation of gray matter in brain anatomical images.
Goal(s): To evaluate the extent to which scan time can be reduced using MP2RAGE with compressed sensing while preserving image quality.
Approach: This study utilized CS-MP2RAGE and PI-MP2RAGE sequences at 7T with varying acceleration factors to compare the segmentation and T1 values of gray matter.
Results: CS-MP2RAGE reduced the scan times by up to 80% compared to PI-MP2RAGE, with high segmentation similarity in most regions, but there were still issues with gray matter T1 values and contrast and signal uniformity in some areas.
Impact: The significant scan time reduction obtained by CS-MP2RAGE sequence could improve clinical and experimental workflow efficiency, reduce patient discomfort, and expand research possibilities in ultra-high-field MRI.
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