angiographic stenosis
Coronary artery narrowing severity assessed by visual estimation or quantitative measurement on angiography.
Full Definition
Angiographic stenosis refers to the degree of coronary artery narrowing as determined by coronary angiography, typically expressed as percentage reduction in luminal diameter compared to adjacent reference segments. Assessment methods include visual estimation by experienced operators or quantitative coronary angiography (QCA) using computer-assisted measurement systems. Stenosis severity classification ranges from mild (<50%) to moderate (50-70%) to severe (>70%), with different prognostic implications. However, angiographic assessment has limitations including inability to assess plaque burden, vessel remodeling, and functional significance, leading to increased use of physiology-guided revascularization strategies.
Usage
Usage note: Specify measurement method (visual vs. QCA) when documenting stenosis severity
In Context
- "Quantitative analysis revealed 85% angiographic stenosis in the proximal right coronary artery." — Angiography report
- "Despite moderate angiographic stenosis, FFR measurement showed hemodynamically significant disease." — Physiology study