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Original article / research

Year :2016 Month : March-April Volume : 5 Issue : 2 Page : 30 - 34

Role of 64- Slice MDCT-Coronary Angiography in the Evaluation of Various Coronary Artery Pathologies: Comparison with Catheter Coronary Angiography

Correspondence Address :
Senthil Kumar Aiyappan, Vadanika Venu, Bulabai Karpagam, Vinayagam Shanmugam, Kodithandalam Chakrapani Saravanan ,
Dr. Senthil Kumar Aiyappan,
Associate Professor, Department of Radiodiagnosis,
SRM Medical College Hospital and Research Centre,
SRM Nagar, Potheri, Kattankulathur, Kancheepuram,
Tamil Nadu -603203, India.
E-mail: senthilkumarpgi@yahoo.co.in
Introduction: Introduction: MDCT-Coronary angiography is one of the common investigative modality used for evaluation for coronary artery pathologies like coronary artery diseases, coronary artery anomalies and postoperative cases like coronary artery bypass graft. In this study we compared the findings of MDCT coronary angiography with the gold standard catheter angiography in evaluation of various coronary artery pathologies.

Aim: To evaluate the role of 64- slice MDCT-Coronary angiography in the evaluation of various pathologies involving coronary arteries and to compare the findings with catheter coronary angiography.

Materials and Methods: This was a prospective study and 40 patients were randomly selected for CT- coronary angiography who also underwent catheter coronary angiography within 7 days. The results of CT-coronary angiography were compared with that of catheter coronary angiography. CT studies were done on 64- slice CT scanner.

Results: There were 28 cases of coronary artery disease, 4 cases of abnormalities of origin and course of coronary arteries, 1 case of coronary artery aneurysm, 2 cases of post coronary bypass surgery, 1 case of coronary stenting and 4 cases were completely normal. The overall sensitivity, specificity, positive predictive value and negative predictive value for detection of more than 50 % stenosis by coronary CT angiography were found to be 88 %, 92 %, 91% and 88% respectively.

Conclusion: Non invasive 64-slice CT coronary angiography as a vascular imaging technique can be performed rapidly and safely for the assessment of many different pathologies involving coronary arteries. There are only few studies available in literature using 128-Slice CT which says 128-Slice CT has only slightly increased sensitivity and specificity values when compared to 64- Slice CT. The results obtained with 64 slice CT are comparable to that of 128-Slice CT-scan.
 
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