Table 1

Aneurysm and vascular morphology variables observed and analyzed

IndexDescription
Aneurysm morphology, measured on the extracted aneurysm dome surface
 DaAneurysm depth, measured from the neck centroid to the furthest point on the dome
 AaAneurysm dome area
 VaAneurysm volume
 WaAneurysm neck maximum width
 AnAneurysm neck area, defined as the surface of the aneurysm ostium
 ARaAspect ratio, defined as Da/Wa
Vessel morphology, measured on the parent vessel of the aneurysm
 dpeakDescribes the position of the aneurysm in the parent vessel, is the distance from o to the peak curvature Cpeak before the aneurysm along the centerline
 αnDescribes the orientation of the aneurysm, is the angle between the local osculating plane normal nOP on the parent vessel at zero abscissa and the bifurcation reference system up normal uB
 αtDescribes the orientation of the aneurysm, is the angle between the tangent tV at the parent vessel at zero abscissa and the aneurysm direction tA
Stent porosity, measured across the neck of the aneurysm
 ϕFDPorosity of the flow diverter (FD) measured on the patch covering the neck as 100 × (area of voids)/(total area)