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European Radiology Experimental
Fig. 1 | European Radiology Experimental

Fig. 1

From: Coronary angiography using spectral detector dual-energy CT: is it the time to assess myocardial first-pass perfusion?

Fig. 1

CCTA MPR images of the LAD artery (a, b) and volume rendering reconstructions of coronary tree with cFFR assessment (c) performed on patient 1 (see Table 1). Conventional CCTA images show different mixed plaques along the left main artery and LAD artery, with noncalcified plaques in the LAD proximal segment (arrow), which causes a 54% stenosis, and mid-segment (arrowhead), which causes a 31% stenosis (a). The orthogonal MPR sections show the napkin-ring sign (asterisks), which is a marker of plaque vulnerability (b). Multivessel cFFR measurement shows a hemodynamically significant stenosis of LAD (c). CCTA Conventional coronary computed angiography, cFFR Calculated fractional flow reserve, LAD Left anterior descending, MPR Multiplanar reformatted

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