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Abstract #4162

The Impact of Acceleration Factors of  Compressed Sensing on the Image Quality of 3D-TOF-MRA for Cervical Vessels

Haonan Zhang1, Qingwei Song1, Jiazheng Wang2, Peng Sun2, Renwang Wang1, Nan Zhang1, and Ailian Liu1
1Department of Radiology, the First Affiliated Hospital of Dalian Medical University, Dalian, China, 2PHILIPS——Philips Healthcare, beijing, China

Traditional 3D-TOF Magnetic Resonance Angiography (MRA) in carotid imaging needs a relatively long scan time and is prone to be disturbed by motion artifacts such as vascular pulsation, respiratory movement, and some other physiological factors. A combination of compressed sensing (CS) can achieve high acceleration factors and thus lead to a significant reduction of scan time. Here, we investigated the impact of acceleration factors of compressed sensing on the image quality of 3D-TOF-MRA for cervical vessels. CS acceleration factor of 6 is recommended for clinical 3D-TOF carotid MRA to achieve an optimal balance between imaging time and image quality.

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