ISSN : 1301-5680
e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
Evaluation of coronary artery anomalies using 128-Slice computed tomography
Mustafa Kayan1, Turhan Yavuz2, Mehmet Munduz1, Yasin Türker3, Ahmet Yeşildağ1, Mustafa Etli2, Ergun Ceylan1, Selçuk Yaşar1
1Departments of Radiology, Medical Faculty of Süleyman Demirel University, Isparta, Turkey
2Departments of Cardiovascular Surgery, Medical Faculty of Süleyman Demirel University, Isparta, Turkey
3Department of Cardiology, Medical Faculty of Düzce University, Düzce, Turkey
DOI : 10.5606/tgkdc.dergisi.2012.093
Background: In this study, we aimed to investigate the efficacy of a 128-slice computed tomography (CT) device in detecting anatomical variations and anomalies of coronary arteries and to compare the results obtained with literature data.

Methods: Totally, 83 patients (58 males, 25 females; mean age 53.7±10 years; range 31 to 80 years) with suspected or known coronary artery disease who underwent evaluation using the 128-slice CT in our clinic between February 2009 and December 2010 were retrospectively analyzed. All images were evaluated in terms of anatomic variation and anomaly by a radiologist with expertise in cardiovascular radiology. Continuous variables were expressed as arithmetical mean ± standard deviation (SD), while categorical variables were expressed as percent (%). Statistical analysis was performed using descriptive statistical tests.

Results: The rate of right dominance, left dominance and co-dominance was 80.7%, 8.4% and 10.8%, respectively. It was observed that the conus artery originated from the right sinus valsalva at a rate of 16.86% and from the right coronary artery (RCA) at a rate of 83.1%. It was found that sinus node artery (SNA) originated from the RCA at a rate of 77.1%, from the circumflex (Cx) artery at a rate of 18.1%, from the left main coronary artery (LMCA) at a rate of 2.4% and from the right sinus valsalva at a rate of 2.4%. Ramus intermedius was present in 30.12% of the patients. Coronary artery anomaly was observed in 48 patients (57.8%). of them, 1.2% had absence of LMCA, 6% had commissural origin, 1.2% had coronary hypoplasia, 4.8% had anomalous of contralateral sinus origin, and 43.3% had myocardial bridging.

Conclusion: The 128-slice CT device is a non-invasive method which provides reliable, detailed and correct information for detecting variations and anomalies of coronary arteries. We believe that the 128-slice CT is of higher value in diagnosis and surgical therapy of coronary artery anomalies.

Keywords : Angiography; anomaly; computed tomography; coronary vessels; diagnosis
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