Figure 3: 73-year-old male patient with a history of myocardial infarction and percutaneous recanalization of the RCA with implantation of a 3 mm Coroflex blue and 3 mm Vision stent. CT images computed with a dedicated convolution kernel (a) and a smooth kernel (b) show total stent occlusion with distal filling of the vessel (asterisk) via collateral flow. This finding was confirmed by conventional coronary angiography (c). CT also showed a step with incongruent course of the stents, indicating stent fracture.