Fig. 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). E–H 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)