Quadricuspid Aortic Valve: Cinematic Rendering
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) Cinematic rendering of coronal 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 evaluation. He did not experience any further episodes of chest pain or 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. 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) Cinematic rendering of coronal 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 evaluation. He did not experience any further episodes of chest pain or 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.
Article History
Received: Feb 12 2018Revision requested: Mar 22 2018
Revision received: Mar 23 2018
Accepted: Apr 2 2018
Published online: July 10 2018
Published in print: Sept 2018
