CARAT Case Studies: Coronary Artery Variants and Anomalies (CAVA)

Case Study A05-2: LCA from Non-Coronary Sinus

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LCA_LAO 43 Caud 20
Origin of LCA from low down on non-coronary cusp.

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LCA_RAO 2 Cran 41
Best visualization of dye spilling into NC Cusp.

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LCA_RAO 23 Caud 25
Collateral flow to the totally occluded distal dominant LCx is seen best in this view.

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RCA - LAO 31 Caud 2
Confirms proximal occlusion of a non-dominant RCA.

Anatomy – This is a very uncommon anomaly so it is unfortunate that the extensive coronary disease has obscured some regions. Nevertheless the anomalous LCA location and the left dominant configuration are fairly convincing.

Construction – (Select Settings > Choose Button Q Nums.) Template button Q1.9 sets the stage for the NC LCA origin.

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