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Abstract #2194

3D Spoiled Gradient-Recalled Echo Sequence with Compressed Sensing for DCE-MRI: Improved Temporal Resolution and Image Contrast

Bin Chen1, Kai Zhao2, Bo Li3, Wenchao Cai2, Xiaoying Wang, 12, Jue Zhang, 13, Jing Fang, 13

1Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China; 2Dept. of Radiology, Peking University First Hospital, Beijing, China; 3College of Engineering, Peking University, Beijing, China

Compressed sensing (CS) technique was introduced in this study in order to improve the temporal resolution in Dynamic Contrast-enhanced MR imaging. A real pulse sequence was modified with CS MRI scheme with undersampling in phase encoding, resulting in 2x, 3x, 4x, and 8x accelerations. Actual high temporal resolution was achieved, which could contribute more creditable quantitative renal perfusion measurements. In addition, the contrast-to-noise ratio of reconstructed images was effectively improved.