Figure 2

Representative CCTA and OCT images of calcified plaques. (a) A representative image of calcified nodule. CCTA image showing a large area of calcification. The area of calcified plaque on the cross-sectional image (at blue arrow heads) is 21.77 mm2. The OCT image of this lesion demonstrates calcified nodules (plus symbols). (b) A representative image of eccentric calcified plaque. The area of calcified plaque on the cross-sectional image (at blue arrow heads) is 2.8 mm2. The OCT image of this lesion demonstrates a superficial calcific sheet (asterisks). (c) A representative image of circumferential calcified plaque. CCTA image showing a circumferential calcification. The aread of calcified plaque on the cross-sectional image (at blue arrow heads) is 3.8 mm2. The OCT image of this lesion demonstrates a circumferential calcification (white arrow heads). (d) A representative image of spotty calcification. CCTA image showing a spotty calcification. The area of calcified plaque on the cross-sectional image (at blue arrow heads) is 0.8 mm2. The OCT image of this lesion demonstrated superficial small calcification (white arrow head). CCTA coronary computed tomography angiography, OCT optimal coherence tomography.