Panel A. Mathematical formulas adopted to calculate prolapsed+floating atherothrombotic volume and malapposed volume. Panel B. Examples of prolapsed atherothrombotic material (asterisks in subpanel a, b and c and red contour in subpanel a’), floating atherothrombotic material (yellow arrowhead in subpanel b and yellow contour in subpanel b’), bridging lumen (green arrow in subpanel c and green contour in subpanel c’) and malapposition († symbol in subpanel d and d’).
(BLA: bridging lumen area; FATA: floating athero-thrombus area; LA: lumen contour; ref: reference; ROI: region of interest)