Figure 4e. Annuloaortic ectasia with severe valvular insufficiency in a 32-year-old man. (a) Reformatted CT image shows marked dilatation of the Valsalva sinus and the sinotubular junction (arrowheads). (b, c) Reformatted CT images from the systolic (b) and diastolic (c) phases show dilated aortic sinuses, tethering of leaflets (arrowheads in b), and a central coaptation defect (* in c). (d) Postoperative reformatted CT image, obtained after aortic valve–sparing aortic annuloplasty, shows a normal appearance of the aortic root. Arrows indicate the prosthetic ring used to reconstruct the annulus. (e, f) Reformatted CT images from the systolic (e) and diastolic (f) phases show relief of tethering of leaflets (arrowheads in e) and disappearance of the central coaptation defect.