Table 1

Distribution and Interobserver and Intraobserver ICC for Fibrous Cap Thickness and Lipid Arc

 Frame Analysis (n = 50)Plaque Analysis (n = 25)
Fibrous Cap Thickness, μmLipid Arc, °Fibrous Cap Thickness, μmAverage Lipid Arc, °Maximum Lipid Arc, °
Mean, 70.3 ± 24.3184.2 ± 67.260.5 ± 14.2169.2 ± 42.3239.7 ± 79.7
Maximum/minimum, 170/29360.0/65.2120/35259.1/65.6360.0/90.4
Interobserver ICC0.850.950.490.710.77
Intraobserver ICC0.990.990.990.990.99

Values are mean ± SD.

ICC = intraclass correlation coefficient.

  • Summary statistics included 200 analyzed frames and 100 analyzed plaques. The analysis took into account the quadruplets measured by the 4 independent observers.