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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