angiographic blush
Radiographic appearance of contrast enhancement in tissue capillaries, indicating microvascular perfusion status.
Full Definition
Angiographic blush refers to the characteristic radiographic appearance of contrast material within the tissue capillary bed, visible on angiographic imaging as a faint, homogeneous enhancement of the tissue parenchyma. This phenomenon indicates intact microvascular circulation and is particularly important in assessing tissue viability and perfusion success following revascularization procedures. The presence, intensity, and persistence of blush provides valuable information about the functional status of the microvasculature and can predict clinical outcomes. Absence of expected blush may indicate microvascular dysfunction, no-reflow phenomenon, or tissue necrosis despite successful large vessel recanalization.
Usage
Usage note: Describe intensity and distribution; distinguish from pathological contrast extravasation.
In Context
- "Post-intervention angiography demonstrated robust angiographic blush throughout the previously ischemic territory." — Interventional procedure report
- "Despite TICI 3 recanalization, poor angiographic blush suggested persistent microvascular dysfunction." — Case study discussion