Optimized Fast Simultaneous Non-contrast Angiography and intraPlaque hemorrhage (fSNAP) Imaging with low-resolution reference scan for Carotid Artery
Shuo Chen 1 , Xihai Zhao 1 , Jia Ning 1 , Jinnan Wang 2,3 , Chun Yuan 1,2 , and Huijun Chen 1
Center for Biomedical Imaging Research &
Department of Biomedical Engineering, School of
Medicine, Beijing, China,
of radiology, University of Washington, Seattle, WA,
Research North America, Briarcliff Manor, NY, United
The Simultaneous Non-contrast Angiography and
intra-Plaque hemorrhage (SNAP) sequence has been
proposed for imaging both luminal stenosis and
intraplaque hemorrhage in subjects with carotid
atherosclerosis in one scan. Full-resolution reference
scan in traditional SNAP sequence will double the
acquisition time. To shorten the scan time, we propose a
new fSNAP sequence with interleaved full-resolution
inversion recovery scan and low-resolution reference
scan for carotid atherosclerotic disease evaluation.
Total scan time is shortened by 37.5% without negatively
impacting MRA quality and intraplaque hemorrhage
detection, suggesting that fSNAP proposed in this study
might be an alternative method for carotid
atherosclerotic disease evaluation.
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