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Insights into Imaging
Fig. 5 | Insights into Imaging

Fig. 5

From: Inter-observer agreement and image quality of model-based algorithm applied to the Coronary Artery Disease-Reporting and Data System score

Fig. 5

Comparison of CT images reconstructed with IR and MBIR algorithm and invasive coronary angiography (ICA) in a 65-year-old male patient with thoracic pain after exercise and a history of smoke and arterial hypertension. CT was acquired with 80-kV ECG-gated protocol (HR: 62 bpm). a–b Axial image reconstructions at the same level of the right coronary artery (RCA) show the presence of fibrous and calcified atherosclerotic plaque. MBIR image presented a lower noise level and higher contrast-to-noise ratio, leading to a better evaluation of the pathological findings. c Straight reconstruction which better shows the presence of multiple atherosclerotic plaques along the whole vessel. At the proximal tract, there is severe stenosis (arrowhead) quantified as 85% and reported as CADARDS 4A. d Invasive coronary angiography showing the stenosis reported in CT examination (arrowhead), confirmed as 80%

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