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Abstract #1053

DIR Imaging Using Compressed Sensing for Cortical Thickness Estimation

Sung-Min Gho1, Eung-Yeop Kim2, Hahnsung Kim1, Dong-Hyun Kim1,2

1Electrical and Electronic Engineering, Yonsei University, Shinchon-Dong, Seoul, Korea; 2Radiology, Yonsei University, Shinchon-Dong, Seoul, Korea

DIR has shown the potential for volumetric study through gray matter imaging. By suppressing cerebrospinal fluid and white matter and by using a fast spin echo based acquisition, cortical thickness measurements near air-bone interfaces could be obtained with reduced susceptibility artifacts compared with the standard MP-RAGE sequence. One drawback however with the DIR acquisition is the long scan time needed to acquire the full 3D data set. Here, work on combining DIR imaging with the compressed sensing algorithm is presented.