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Fig. 2 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 2

From: An Egyptian study to assess the accuracy and reliability of CAD-RADS CT coronary angiography algorithm in the evaluation of coronary artery disease

Fig. 2Fig. 2

A 58-year-old male patient presented with attacks of progressive compressing retro-sternal chest pain underwent MSCT. A, B Two curved MPR images of the LAD show multiple calcified plaques, three of them (arrows) show significant stenosis (CAD-RADS 4). C MIP Image and D MPR showing two calcified plaques (arrows) at the LCx and a long calcified plaque at the proximal segment of the OM branch (arrowhead) causing significant stenosis (CAD-RADS 4). EH Conventional angiography showed that the luminal diameter reduction at proximal and mid-LAD and the proximal LCX segments were over-estimated at CT angiography, and this was attributed to the presence of heavy calcifications that led to blooming effects, (beam hardening artefacts) obscuring the nearby patent lumen (arrows)

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