|Descriptive Lumen Obstruction||Qualitative Stenosis Grading|
|Normal||Absence of plaque/no luminal stenosis|
|Minimal||Plaque with negligible impact on lumen|
|Mild||Plaque with no flow-limiting stenosis|
|Moderate||Plaque with possible flow-limiting disease|
|Severe||Plaque with probable flow-limiting disease|
Adapted, with permission, from Raff et al. (17).
Qualitative coronary arterial stenosis grading as recommended by the Society of Cardiovascular Computed Tomography.