Concentric rings with k-t acceleration enables rapid and effective fat-water-separated cardiac cine MRI at 3 T
KeywordsSource Image Concentric Ring Chemical Shift Information Cine Frame Multiple Revolution
Cine imaging is the core technique for cardiac MRI studies. Often times, it is also essential to have information identifying fat signal in the heart to characterize masses, detect fatty infiltration and ARVD, discern fat from fibrosis in LGE imaging, and improve visualization of the pericardium. However, such information traditionally requires additional scans that obtain fat-suppressed images for comparison. This prolongs the examination time, is susceptible to mis-registration between the fat-suppressed and fat-visible images, and does not directly utilize positive contrast from fat. In this work, we present an integrated cardiac MRI technique that produces co-registered cines of both water and fat signal from a rapid single-breath-hold scan.
By combining concentric rings with k-t BLAST, co-registered water and fat cines can be obtained at 3 T with 25-ms temporal resolution within a single 10-sec breath-hold scan. Cardiac function and fat distribution can be simultaneously visualized for a range of applications.
NIBIB T32 EB009035; NHLBI R01 HL039297; AHA 11POST7420014; GE Healthcare
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