Fig. 21
From: Imaging in Transcatheter Aortic Valve Replacement (TAVR): role of the radiologist
Standard reconstructions for assessment of peripheral vascular pathway. The approach includes first creation of a curved reformat of each artery, including the aorta (a), as well as 3D volume-rendered images (b). Those reconstructions provide landmarks to display the sites of subsequent measurements of luminal diameter and 3D volume-rendering maximum intensity projection (MIP) reformats (c) demonstrate the severity of aortic and ileo-femoral calcifications. Curved multiplanar reformats, obtained with a centreline approach, serve as the source for multiple luminal measurements made in a plane orthogonal to the vessel. d, e, f show the process of assessing orthogonal axial planes with measurements of the smallest diameters at each vessel level [common iliac artery (d), external iliac artery (e), common femoral artery (f)]