MY CONTENT

A DSA-based flow quantification tool (AneurysmFlow) was used to measure blood flow vectors and velocities after contrast injection. Complex flow patterns were shown to be common in ruptured aneurysms and those with daughter sacs. Lowest mean aneurysm flow amplitude in the dome and daughter sacs indicated pathophysiologic changes linked to rupture. Also, hypertension, bifurcation location, and irregular shape of unruptured aneurysm were found to be independent rupture risk factors.