الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Coronary artery bypass graft surgery (CABG) has been used as an alternative to medical therapy, in treating symptomatic coronary artery disease patients for over forty years as an alternative option to medical therapy. The superior outcome of CABG over medical treatment in terms of survival benefit is clearly documented in patients with left main or three vessels CAD, especially when the proximal left anterior descending (LAD) artery is involved. The various conduits used for CABG surgery may be divided into arterial and venous grafts. Venous grafts have demonstrated a tendency to develop partial or complete occlusions with time, whereas arterial grafts have shown relative resistance to plaque formation and obstruction. However, arterial conduits are more limited in their availability and ease of procurement compared with venous grafts, specifically the saphenous vein. Therefore, saphenous vein grafts (SVGs) remain the most commonly used conduits.
Although the invasive coronary angiography remains the gold standard in assessing graft vessel, recent studies have shown that the MDCT can offer a comparable result in non-invasive fashion.