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Abstract #1767

Accelerating magnetic resonance angiography using Compressed SENSE technology - a prospective multi-center study

Jinli Ding1, Yunyun Duan1, Zhizheng Zhuo1, Yawei Yuan2, Guiqing Zhang2, Qingwei Song3, Bingbing Gao3, Bing Zhang4, Maoxue Wang4, Linlin Yang5, Yang Hou5, Fenglian Zheng1, Xiaoya Chen6, Yishi Wang7, and Yaou Liu1
1Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China, 2Beijing Royal Integrative Medicine Hospital, Beijing, China, 3First Affiliated Hospital of Dalian Medical University, Dalian, China, 4Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Jiangsu, China, 5Shengjing Hospital of China Medical University, Shenyang, China, 6the First Affiliated Hospital of Chongqing Medical University, Chongqing, China, 7Philips Healthcare, Beijing, China

Clinical feasibility of using Compressed SENSE (CS-SENSE) technology to shorten the scan time of Time-of-flight (TOF) magnetic resonance angiography (MRA) and optimal acceleration factor were investigated via a multi-center study. Ninety subjects underwent 8 customized TOF-MRA sequences including sequences with CS-SENSE technology, SENSE technology and without acceleration technology. Subjective assessments including evaluations of artery branches and artifacts, and objective measurements including signal-to-noise ratio, contrast-to-noise ratio and peak signal-to-noise ratio were performed. The results indicated that TOF-MRA using CS-SENSE with an optimal acceleration factor (4 to 6) provided comparable results compared with traditional TOF-MRA sequences, and significantly increased the scan efficiency.

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