Infarct related artery morphology
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
The morphology of the culprit artery is defined as:
The plaque is twice as large on one side of the arterial border compared with the other. “Stenosis noted to have one of its lumen edges in the outer one-quarter of the apparent normal lumen.”
Readily apparent densities noted within the apparent vascular wall at the site of the stenosis.
Lesion is ≥20 mm in length.
Atherosclerotic plaque involves the origin of two separate arteries. It does not necessarily require two guidewires.
Lesion begins within 3-5 mm of the origin of a major epicardial artery.
Cessation of antegrade flow during systole or frank flow reversal during systole. Codes as yes (present) or no (absent).
Dye flow down the artery is slowed at any point during the course of flow.