Quadricuspid Aortic Valve: Cinematic Rendering.
Radiology. 2018 Sep;288(3):658. doi: 10.1148/radiol.2018180379. Epub 2018 Jul 10.
Chu LC1, Fishman EK1.
A 43-year-old man with history of hypertension presented to the emergency department with chest pain and dyspnea. Serial troponin tests were negative. Electrocardiography (ECG)-gated CT angiography of the chest was performed per "triple rule-out" protocol. (a) Cinematic rendering of axial oblique intravenous contrast material-enhanced CT at the level of the aortic valve shows a quadricuspid aortic valve. The right coronary artery arises from the right coronary cusp (arrow) and the left main artery arises from the left coronary cusp (arrowhead). (b) Cinemaic rendering ofcoronal oblique CT shows three cusps (right, left and supranumery) (arrowheads). The noncoronary cusp is not visualized in this projection. Cinematic rendering is a recently described three-dimensional rendering technique that generates photorealistic images based on a new lighting model. Cinematic rendering improved depth perception and appreciation of the aortic valve leaflets. The patient was discharged home in stable condition and underwent outpatient cardiology evalation. He did not experience any further episodes of chest painor dyspnea and was asymptomatic with respect to his quadricuspid aortic valve. A=anterior, P=posterior, R=right, L=left, H=head, F=foot, LA=left atrium.