Figure 1.

Coronary Computed Tomography Angiogram Demonstrating the Left Atrial Dissection

(A) Single-axial image from a coronary computed tomography angiogram (CTA) showing calcification of the aorticomitral curtain (red arrow) that is secondary to a chronic aortic insufficiency jet. This lesion served as the nidus for the dissection (blue arrow). (B) Single-axial image from a coronary CTA showing the left atrial dissection flap (blue arrow) and native perivalvular mitral regurgitation due to anterior mitral leaflet (black arrow) dehiscence.