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FIGURE 2. CT angiography in a patient who underwent percutaneous coronary intervention of the left anterior descending (LAD) coronary artery in the past and now complains of recurrent angina. Multiple lesions, partially calcified, can be seen in the proximal LAD (D and E) as well as the stent in mid-LAD. A complete 3-dimensional reconstruction of the heart (A) shows a significant lesion in the LAD (arrow) and the high-density stent (arrowhead). Only a small section of the LAD can be visualized on a single axial slice (B), whereas multiplanar reformations can be created along the vessel and show extended sections (C). Curved multiplanar reformations (D) and maximum-intensity projections (E) can be used to show the entire vessel in a single image. Panels F, G, and H show cross-sections of the LAD at the proximal reference, the stenosis, and the distal reference level, respectively. MO = marginal branch; DO = diagonal branch; V = cardiac vein. (Adapted from (29).)
