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Abstract #4139

Optimized Acceleration Factor in Phase Measurement of Brain Deep Veins using SWI with Compressed Sensing

Jing Yang1, Yanwei Miao1, Yangyingqiu Liu 1, Yu Bing1, Bingbing Gao1, Jiazheng Wang2, Zhiwei Shen2, Ailian Liu1, Qingwei Song1, and Renwang Pu1
1First Affiliated Hospital of Dalian Medical University, Dalian, China, 2Philips Healthcare, Dalian, China

The MR scan time can be decreased using Compressed sensing with a favorable image quality. The study aimed to quantitative measure the oxygen concentration using Susceptibility Weighted Imaging (SWI) images with the different acceleration factors (AF), and explore the optimized AF of compressed sensing based on quantitative assessment of the image quality. Combined with the SNR and CNR, when the AF is 4, the scanning time can be reduced by 71.39%. For the phase value of deep veins, the AF can reach to 6 and the scan time is reduced to 1min8s without image quality change obviously.

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