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Figure 3 CTCA and CCA With FFR Measurement of Intermediate Coronary Lesion
Patient with a coronary artery stenosis (arrow) in the proximal part of the right coronary artery, as visualized with CTCA (A, volume-rendered image; B and C, 2 orthogonal curved multiplanar reconstructions) and CCA (D). Visually, the diameter stenosis was estimated as more than 50%, both by CTCA and CCA. Also, after quantification (56% diameter stenosis by quantitative coronary angiography, 70% diameter stenosis by quantitative CTCA), the lesion appeared to be anatomically significant. The FFR was 0.78 (E). In the distal segments, a step artefact can be seen (A and C, arrowhead). Abbreviations as in Figure 1.
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