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European Radiology Experimental
Fig. 3 | European Radiology Experimental

Fig. 3

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

Fig. 3

Conventional CCTA MPR images of the heart performed on patient 1 (see Table 1). Myocardial attenuation was assessed by means of polygonal ROIs placed in each short-axis segment (b, c, d) accordingly to the Standardized Myocardial Segmentation and Nomenclature of the American Heart Association. Myocardial attenuation does not show any difference between anteroseptal and inferolateral segments, as visible on the three-chamber long-axis view (a). ROIs placed on each myocardial segment, either on basal (b), mid (c), and apical (d) short-axis slices, show similar HU values among myocardial segments perfused by LAD arstery (blue), RCA (purple), and LCx artery (yellow). CCTA Conventional coronary computed angiography, LAD Left anterior descending, LCx Left circumflex, MPR Multiplanar reformatted, RCA Right coronary artery, ROI Region of interes

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