الفهرس 
Anatomy of coronary arteriesOnly 14 pages are availabe for public view
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Abstract
Coronary artery stenting and coronary artery bypass graft surgery have been considered a treatment for significant coronary artery disease. Recurrence of ischemic symptoms after these procedures requires imaging assessment of stent and graft lumen to rule-out in-stent restenosis or occlusion and to diagnose graft dysfunction. Conventional coronary angiography has been considered the gold standard for evaluation of the lumen of coronary artery stents and coronary artery bypass grafts. However, the main drawbacks of this method include invasiveness, patient discomfort, high radiation dose and risk of complications. So, a non-invasive imaging modality is desirable for luminal assessment of coronary stents and coronary artery bypass grafts. The use of multidetector CT as a non-invasive cardiovascular imaging modality is gaining much acceptance due to recent technical improvements of multidetector CT scanners that allow better spatial and temporal resolution, shorter scan times, lower radiation dose and contrast material. The aim of this study was to evaluate the role of multidetector CT as a non-invasive imaging modality in the assessment of coronary stents and coronary artery bypass grafts. This study included 45 patients; 32 were males and 13 were females with their age ranged from 41 to 78 years with a mean of 60.47 years. Patients were divided into two groups; first group included 24 patients who were referred to assess coronary stents and the second.