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Table 2: 
Summary of imaging and histologic findings
FindingsNo. (%) or Average (SD)
Imaging features
 Rim sign39 (58.2%)
 Ulceration11 (16.4%)
 Any calcifications64 (95.5%)
 Adventitial calcifications53 (79.1%)
 Bulky calcifications11 (16.4%)
 Soft tissue ≥2 mm55 (82.0%)
 Maximum soft-tissue thickness (mean) (mm)4.0  (SD, 2.0)
 Maximum overall plaque thickness (mean) (mm)4.9  (SD, 1.5)
 Maximum stenosis (mean) (%)77.4 (SD, 16.5)
Histologic findings
 LRNC present64 (95.5%)
 LRNC proportion (mean)22.2% (SD , 19.2%)
 IPH present52 (77.6%)
 IPH proportion (mean)13.7% (SD , 17.2%)
 Calcification present57 (85.1%)
 Calcification proportion (mean)20.9% (SD, 20.7%)