Cardiovascular Radiology Glossary

Coronary artery narrowing severity assessed by visual estimation or quantitative measurement on angiography.

Percutaneous technique using balloon inflation to compress atherosclerotic plaque and restore coronary flow.

Coronary stenosis involving a vessel branch point, classified by the Medina system based on involvement pattern.

Coronary artery bypass grafting, a surgical procedure to reroute blood flow around blocked coronary arteries.

Post-surgical coronary anatomy including bypass grafts, native vessels, and anastomotic sites.

Vessels used as bypass grafts in coronary artery bypass surgery, including arterial and venous grafts.

Invasive procedure using catheter-based techniques to diagnose and treat coronary artery disease.

Non-invasive CT imaging of coronary arteries using contrast enhancement and cardiac gating.

Complete coronary artery obstruction present for more than three months with TIMI 0 flow.

Acute kidney injury following contrast media exposure during cardiac procedures.

Cardiac enzyme biomarker historically used for myocardial infarction diagnosis, now largely superseded by troponin.

Alternative blood flow pathways that develop to supply myocardium when primary coronary arteries are significantly narro...

Leakage of contrast medium outside the intended vascular space during coronary angiography, indicating vessel perforatio...

Acute kidney injury following intravascular contrast media administration during cardiac procedures.

Acute kidney injury occurring within 48-72 hours of contrast media exposure during cardiac procedures.

Imaging metric that quantifies the distinction between vascular structures and background noise in angiographic images.

Abnormal focal dilatation of coronary artery exceeding 1.5 times the adjacent normal vessel diameter.

X-ray imaging procedure using contrast dye to visualize coronary arteries and detect blockages.

Tear in the coronary artery wall creating a false lumen that can compromise vessel patency and cause ischemia.

The pattern determining which coronary artery gives rise to the posterior descending artery and supplies the inferior my...

Ratio of maximum achievable coronary flow during hyperemia to resting coronary flow.

Impaired function of small coronary arteries not visible on angiography, causing chest pain despite normal epicardial ve...

A procedural complication involving breach of the coronary artery wall, classified by Ellis criteria based on severity.

Paradoxical reduction in blood flow to ischemic myocardium during vasodilation due to preferential flow to non-ischemic...