Fig. 2

A 45-year-old man with Marfan’s syndrome post aortic valve replacement with a fusiform ascending aortic aneurysm. Measurement of the ascending thoracic aorta dimension (double arrows) in a plane double oblique to the vessel centerline (a) with sagittal (b) and coronal (c) MPRs demonstrating the plane of measurement (red lines). Three-dimensional segmented VR image of the thoracic aorta (d) demonstrates the site of measurement (line)