Figure 2 | Scientific Reports

Figure 2

From: Diagnostic accuracy of low-radiation coronary computed tomography angiography with low tube voltage and knowledge-based model reconstruction

Figure 2

False positive finding. Overestimated (false positive) proximal right coronary artery (RCA) stenosis on coronary computed tomographic angiography (CCTA) under 100 kVp/150 mAs in a 66-year-old man (effective radiation dose, 1.64 mSv; BMI, 26.1 kg/m2; mean heart rate, 63 bpm). Invasive coronary angiography (ICA) of the RCA confirmed the insignificant stenosis (a). Curved multiplanar reformation of the RCA shows significant stenosis in the proximal segment caused by a calcified plaque (b), although this was a false positive finding as compared to the ICA. In the same vessel, distal right coronary stenosis was concordantly detected (true positive) via CCTA and ICA.

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