contrast extravasation
Leakage of contrast medium outside the intended vascular space during coronary angiography, indicating vessel perforation.
Full Definition
Contrast extravasation refers to the abnormal leakage of contrast medium outside the coronary artery lumen during angiographic procedures, typically indicating coronary artery perforation or rupture. This complication can range from small pericardial staining to frank rupture requiring emergency intervention. In cardiovascular radiology reports, contrast extravasation must be clearly documented with description of location, severity, and clinical consequences, as it represents a serious procedural complication requiring immediate attention.
Usage
Usage note: Distinguish from normal myocardial blush or contrast staining. Always document severity and clinical significance.
In Context
- "Mild contrast extravasation was noted in the pericardial space following wire manipulation." — Complication documentation
- "No evidence of contrast extravasation was observed during the procedure." — Safety assessment note