Chengcheng Zhu1, Bing Tian2, Florent Seguro1, Joe Leach1, Qi Liu2, Jianping Lu2, Luguang Chen2, Michael Hope1, and David Saloner1
1Radiology, University of California, San Francisco, San Francisco, CA, United States, 2Radiology, Changhai Hospital, Shanghai, China, People's Republic of
Computed Tomography angiography (CTA) is the gold
standard for abdominal
aortic aneurysm (AAA) imaging, but requires radiation and iodinated
contrast. We previously developed an isotropic 3D black blood technique (DANTE-SPACE) for AAA imaging. In
this study we validated 3D MRI against CTA for AAA diameter and volume
measurement, and found excellent accuracy and reproducibility. Features of intra-luminal
thrombus (ILT) composition that are possibly related to faster AAA growth can
be identified on 3D MRI but not on CTA. 3D black blood MRI can be used as a non-invasive tool for AAA serial
monitoring and ILT evaluation and has the potential to improve patient risk
stratification.
