Fig. 3From: Using optical coherence tomography and intravascular ultrasound imaging to quantify coronary plaque cap thickness and vulnerability: a pilot studyBar plots of 3 OCT cap index groups and their corresponding IVUS cap index distributions. Disagreement rates were given for each group. O1 = OCT Cap Index = 1; I1 = IVUS Cap Index = 1; O2 = OCT Cap Index = 2; I2 = IVUS Cap Index = 2. Other notations were defined similarlyBack to article page