+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Anatomic variations and anomalies of the coronary arteries: 64-slice CT angiographic appearance

Anatomic variations and anomalies of the coronary arteries: 64-slice CT angiographic appearance

Diagnostic and Interventional Radiology 15(4): 275-283

To retrospectively review the 64-slice computed tomography (CT) appearance of coronary artery anatomic variants and anomalies and determine their incidence in 700 patients. CT data of 700 patients who underwent 64-slice CT angiography (CTA) because of known or suspected coronary artery disease were retrospectively reviewed by two radiologists experienced in cardiovascular radiology. In each study, anatomic variants and anomalies were investigated. The coronary artery system was right dominant in 76%, left dominant in 9.1% and co-dominant in 14.8% of the cases. Ramus intermedius was present in 31%. Conus artery with a separate ostium in the right sinus Valsalva was observed in 22%, and in 0.2% two conus arteries originating with separate ostia were visualized. The sinus node artery (SNA) originated from the right coronary artery (RCA) in 79%, from the circumflex artery (Cx) in 20%, and from the left main coronary artery (LMCA) in 0.4%. In 0.4% of the cases SNA originating from the right sinus Valsalva with a separate ostium was seen. LMCA was absent in 0.4%. Cx was absent in 0.1%, and diagonals were absent in 0.1%. High takeoff of LMCA and RCA were observed in 0.7% and 0.1%, respectively. Myocardial bridging was observed in 37%. Anomalous origin of the coronary artery from the opposite sinus was observed in 1% of the cases. Complex anatomy of the coronary artery system can accurately be depicted by 64-slice CTA. This modality is useful in detecting coronary artery variants and anomalies and is a valid alternative to conventional coronary angiography in their diagnosis.

Please choose payment method:

(PDF emailed within 1 workday: $29.90)

Accession: 051538465

Download citation: RISBibTeXText

PMID: 19957241

Related references

Remarkable anatomic anomalies of coronary arteries and their clinical importance: a multidetector computed tomography angiographic study. Journal of Computer Assisted Tomography 30(6): 939-948, 2006

Adult congenital anomalies of the coronary arteries described over 31 years of angiographic studies in the Asturias Principality: main angiographic and clinical characteristics. Revista Espanola de Cardiologia 54(3): 269-281, 2001

Postmortem Angiographic Studies on the Coronary Arterial Circulation: Incidence and Topography of Occlusive Coronary Lesions; Relation to Anatomic Pattern of Large Coronary Arteries. American Heart Journal 68: 490-499, 1964

The arteries of the lingual thyroid: angiographic findings and anatomic variations. Ajnr. American Journal of Neuroradiology 11(4): 730-732, 1990

Angiographic appearance of coronary arteries from transplanted hearts predicts coronary flow reserve. Circulation 88(4 Part 2): I420, 1993

Congenital anomalies of coronary arteries: Diagnosis with 64 slice multidetector CT. European Journal of Radiology 81(8): 1790-1797, 2012

The angiographic appearance of the coronary arteries in constrictive pericarditis. Radiology 131(3): 609-617, 1979

Multi-slice computed tomography and the detection of anomalies of coronary arteries. Journal of Cardiovascular Medicine 9(2): 187-194, 2008

Coronary anatomy, anatomic variations and anomalies: a retrospective coronary angiography study. Singapore Medical Journal 56(6): 339-345, 2015

Anatomic variations in the coronary arteries. Acta Radiol 41(5): 393-416, 1954

Anatomic variations of the coronary arteries. Arquivos Brasileiros de Cardiologia 65(6): 489-492, 1995

Hemodynamically significant primary anomalies of the coronary arteries. Angiographic aspects. Circulation 58(1): 25-34, 1978

Angiographic appearance of coronary arteries after four to six month implantation of paclitaxel-coated stents. Circulation 104(17 Suppl.): II 624, 2001

Kawasaki disease causing giant saccular aneurysms of the coronary arteries: echocardiographic and 64-slice computed tomographic angiographic findings. Texas Heart Institute Journal 35(3): 369-370, 2008

Angiographic demonstration of important anatomic variations of the posterior descending coronary artery. American Journal of Roentgenology Radium Therapy and Nuclear Medicine 116(1): 41-49, 1972