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Table 7 Characterization of lesions with positive napkin ring sign (NRS)

From: High risk plaque criteria by multislice coronary CT angiography in patients with stable vs. unstable coronary artery disease: analytic cross-sectional study

Napkin ring sign (NRS) (n = 14)
Patient groups
Unstable groupStable group
13 (92.8)1 (7.2%)
Site
Proximal LAD (n, %)Mid LAD (n, %)
8 (57.2%)6 (42.8%)
Degree of stenosis
Non obstructive (n, %)Obstructive (n, %)
13 (92.3%)1 (7.75%)
Remodeling index (R.I)
R.I > 1.1 (n, %)R.I <1.1 (n, %)
12 (89.3%)2 (10.7%)
Hypo dense coreHyper dense outer rim
Min. Max.32.0–59.0120.0–150.0
Mean ± SD.43.93 ± 8.39127.93 ± 12.58
Median44.0129.50