Abstract #1520

MR Feature Tracking-Derived Circumferential Strain of the Aortic Wall Correlates to Abdominal Aortic Aneurysm Growth Independent of Diameter

Huiming Dong¹, Joseph Leach¹, Ang Zhou¹, Teodora Chitiboi², Megan Ballweber¹, Warren Gasper³, David Saloner¹, and Dimitrios Mitsouras¹

¹Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States, ²Siemens Healthineers AG, Erlangen, Germany, ³Surgery, University of California, San Francisco, San Francisco, CA, United States

Synopsis

Keywords: Vessels, Vessels, Aortic Strain; MR Feature TrackingRecent studies are increasingly highlighting aortic wall stress, strain, and other mechanical descriptors as relevant factors associated with abdominal aortic aneurysm (AAA) progression. The goal of this prospective patient study was to employ MR feature tracking to measure the maximum circumferential strain in AAAs and study investigate its relationship with AAA growth. The feature tracking-measured AAA circumferential strain was lower than that of the normal aorta, indicating that the AAA wall is less compliant than the non-aneurysmal aorta. Furthermore, AAA strain was associated with the growth rate of the aneurysm, independent of AAA maximum diameter.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.