Abstract #4138

High resolution Isotropic 3D Black Blood Thoracic Aorta Imaging With Low Rank Patch-Based Reconstruction

caiyun shi^1,2, yuanyuan liu¹, guanxu cheng³, yulong qi³, haifeng wang¹, lei zhang¹, xin liu¹, hairong zheng¹, dong liang¹, and yanjie zhu¹

¹Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, shenzhen, China, ²Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, shenzhen, China, ³Peking University Shenzhen Hospital, shenzhen, China

Synopsis

Three-dimensional (3D) black-blood MRI is a promising noninvasive imaging technique for assessing aortic atherosclerotic plaque. In this work, a low rank patch-based technique is proposed, and combined with a 3D modulated vFA-FSE sequence for high-resolution thoracic aorta imaging. The comparison was conducted on healthy volunteers and compared against a conventional GRAPPA acquisition to assess the feasibility of the proposed scheme. The results showed the reconstruction scheme was able to visualize the lumen areas clearly and improve the vessel sharpness and contrast ratio significantly.

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