Both aneurysm wall enhancement (AWE) and irregular pulsation have been suggested as potential candidates for intracranial aneurysms (IAs) instability. No studies have explored the association between AWE and irregular pulsation. By using vessel wall MRI and four-dimensional computed tomography angiography, we found a significantly strong correlation between AWE and irregular pulsation (phi coefficient=0.569, p<0.001). IAs with irregular pulsation had much less AWE grade 0 and more AWE grade 1, 2 and 3 compared with IAs without irregular pulsation (all p<0.05). Further longitudinal studies are needed to validate the role of the two imaging markers in predicting aneurysm growth and rupture.
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.
Keywords