Abstract #4753

Surveillance of abdominal aortic aneurysm using accelerated 3D non-contrast black-blood MRI with compressed sensing (CS-DANTE-SPACE)

Chengcheng Zhu¹, Lizhen Cao^1,2, Zhaoying Wen^1,3, Sinyeob Ahn⁴, Esther Raithel⁵, Christoph Forman⁵, Michael D Hope¹, and David Saloner¹

¹Radiology, University of California, San Francisco, San Francisco, CA, United States, ²Radiology, Xuanwu Hospital, Beijing, China, ³Radiology, Anzhen Hospital, Beijing, China, ⁴Siemens Healthcare, San Francisco, CA, United States, ⁵Siemens Healthcare, Erlangen, Germany

Although 3D non-contrast high-resolution black-blood MRI (DANTE-SPACE) is a promising tool for the surveillance of abdominal aortic aneurysm (AAA), it requires lengthy scans (~7 minutes). We implemented a compressed sensing method (CS-DANTE-SPACE) to reduce the scan time by 41% (to ~4 minutes), and tested its feasibility in 20 AAA patients undergoing routine follow-up. We found CS-DANTE-SPACE achieved accurate diameter/area measurements and intraluminal thrombus (ILT) identification, and provided better contrast and vessel sharpness. CS-DANTE-SPACE is a promising tool for AAA surveillance in the clinical setting.

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