chapter  15
8 Pages

Noninvasive Evaluation of Coronary Artery Bypass Grafts with Multislice Computed Tomography Brodoefel, Martin Heuschmid Andreas F Kopp,

ByChristof Burgstahler, Anja Reimann, Harald and Stephen Schroeder

Coronary artery bypass graft (CABG) surgery is usually

performed in patients with advanced coronary artery

disease (CAD). Recurrence of angina pectoris in these

patients is a common problem, and early graft occlusion is

described in up to 23% of all patients,1 with a large number

of patients developing angina pectoris within the initial

three months. Surgical revascularization is done usually

with either arterial or venous grafts or the combination

of both. Arterial grafts (left or right internal mammarian

artery or free arterial grafts) are preferable as they have

a higher graft patency rate than venous grafts in short-

and mid-time follow-up.2 Five years after coronary

artery bypass surgery approximately 90% of arterial

grafts are patent, in contrast to 80% of venous grafts. The

gold standard for direct visualization of coronary artery ves-

sels is invasive X-ray coronary angiography. However, due

to its invasive character and possible complications, there is

a need for non-invasive tools to assess coronary artery bypass

vessels.