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FIGURE 2. (A) Contrast-enhanced CT angiogram showing stenotic lesion in left circumflex coronary artery with faint poststenotic flow (arrow). (B) Coronary angiogram showing same stenotic lesion (arrow). (C) Combined 3-dimensional reconstruction of multislice spiral CT scan showing coronary artery tree and shape of heart, superimposed by color-coded qualitative stress perfusion image obtained by PET. Blue indicates reversible perfusion defect (i.e., ischemia). Lesion described in A and B is hemodynamically relevant, as documented by reduced hyperemic response to adenosine stress in lateral wall (arrowheads).
