Table 2

Recommended Quantitative Stenosis Grading

Descriptive Lumen ObstructionQuantitative Stenosis Grading
NormalAbsence of plaque/no luminal stenosis
MinimalPlaque with <25% stenosis
Mild25%–49% stenosis
Moderate50%–69% stenosis
Severe70%–99% stenosis
Occluded

Adapted, with permission, from Raff et al. (17).

Quantitative coronary arterial stenosis grading as recommended by the Society of Cardiovascular Computed Tomography.