Role of multidetector CT in the evaluation of coronary artery bypass grafts
نویسندگان
چکیده
Coronary artery bypass graft (CABG) surgery is associated with an improvement of survival and quality of life in patients with multivessel coronary disease and left main stenosis. However CABGs, similarly to the native coronary vessels, may in time, develop stenosis or occlusion. Invasive coronary angiography is considered the gold standard in the evaluation of CABG, but the technique is associated with some complications. Multidetector CT is considered a noninvasive and convenient tool in the study of CABGs in patients with recurrence of chest pains. However, there are limitations related mainly to the presence of vessel calcification, vascular clips, arrhythmias and radiation exposure. The recent introduction of a new generation of multidetector CT scanners with a significant increase in spatial and temporal resolution could allow cardiac CT to have an increasing role in the clinical practice.
منابع مشابه
Noninvasive evaluation of coronary artery bypass grafts and native coronary arteries: is 16-slice multidetector CT useful?
PURPOSE To investigate the diagnostic accuracy and limitations of 16-slice multidetector computed tomography (MDCT) in the detection of significant ( > 50%) stenosis of coronary artery bypass grafts (CABG) and native coronary arteries. MATERIALS AND METHODS One hundred two patients with 236 grafts were investigated by 16-slice MDCT. Native coronary arteries were also investigated. The image q...
متن کاملEarly patency evaluation of new distal anastomotic device in internal mammary artery grafts using computed tomography angiography.
INTRODUCTION : Traditional coronary artery bypass grafting is performed using a hand sewn technique. The C-Port xA and Flex A anastomotic stapling devices (Cardica Inc., Redwood City, CA) were cleared by the Food and Drug Administration for use in distal coronary anastomoses in November 2006 and April 2007, respectively. They provide the ability to create a compliant, consistently reproducible,...
متن کاملA pictorial review of coronary artery bypass grafts at multidetector row CT.
Multidetector row CT scanners with submillimeter spatial resolution and high temporal resolution are now available and are increasingly used for noninvasive assessment of vascular disease including coronary arteries and grafts. The entire heart and graft course can be scanned within a single breath-hold, and contrast-enhanced images are reconstructed through retrospective ECG gating. In this pi...
متن کاملMultislice CT evaluation of coronary artery bypass graft patients.
Continuous improvement in multislice computed tomography technology has further enabled advances in coronary artery bypass graft imaging. Multidetector platforms and retrospective electrocardiography gating have enabled sensitivities and specificities in the 95% to 99% range while avoiding the morbidity associated with invasive catheter angiography. Identification of bypass graft stenoses and b...
متن کاملEvaluation of early coronary graft patency after coronary artery bypass graft surgery using multislice computed tomography angiography
BACKGROUND Coronary artery bypass graft (CABG) surgery is the standard of care in the treatment of advanced coronary artery disease, and its long-term results are affected by the failure of bypass grafts. The aim of the present study was to evaluate the early patency rate in coronary bypass grafts. METHODS A total of 107 consecutive patients who underwent CABG were included in this study. Ear...
متن کامل