Myocardial bridging and coronary artery anomalies detected by ECG-gated 64-row multidetector computed tomography angiography in symptomatic patients

• Autorzy: Javadrashid R , Tarzamni M.K. , Aslanabadi N. , Ghaffari M. , Salehi A. , Sorteji K.
• Języki publikacji: EN

Abstrakty

EN

Advances in 64-row multidetector computed tomography have provided noninvasive imaging of coronary arteries. The aim of this study was to evaluate the prevalence of coronary artery anomalies in Iranian symptomatic patients and to determine the presence of anomalies resulting in myocardial ischaemia without atherosclerotic plaque. This study was carried out in Tabriz University of medical sciences on 534 patients with suggestive symptoms for coronary artery diseases. Original slices were reconstructed from data achieved by using a ECG-gated multidetector computed tomography scanner, and reconstructed 3-dimentional images of the heart were reviewed. Congenital angiography was performed in 36.3% of patients. The prevalence of myocardial bridging in symptomatic patients was 6.0% by multidetector computed tomography while conventional angiography could detect 20% of them. The most prevalent site was the middle portion of the left anterior descending artery. Anomalous origin or course of coronary arteries and AV fistula was detected by multidetector computed tomography coronary angiography in 2.6% of cases while conventional angiography could detect 44.4% of these anomalies. The prevalence of atherosclerotic plaques in patients with myocardial bridging was 53.1%. In 46.9% of these patients, myocardial bridging was held responsible for signs and symptoms of myocardial ischaemia as no atherosclerotic plaque was evident. This rate was 64.3% in symptomatic patients with other anomalies in origin or course of coronary arteries. This study gives the prevalence of coronary artery anomalies and myocardial bridging in the Iranian population. The results suggest multidetector computed tomography coronary angiography as the preferred utility for diagnosing such anomalies. (Folia Morphol 2009; 68, 4: 201–206)

Słowa kluczowe

EN

myocardial bridging; coronary artery anomaly; coronary artery function; myocardial ischaemia; anomaly; detection; multidetector computer tomography; angiography; patient; epidemiology; prevalence; computer tomography

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2009
• Tom: 68
• Numer: 4
• Opis fizyczny: p.201-206,fig.,ref.

Twórcy

autor

Javadrashid R

• Tabriz University of Medical Sciences, Tabriz, Iran

autor

Tarzamni M.K.

autor

Aslanabadi N.

autor

Ghaffari M.

autor

Salehi A.

autor

Sorteji K.

Bibliografia

• 1. Albert CM, Mittleman MA, Chae CU, Lee IM, Hennekens CH, Manson JE (2000) Triggering of sudden death from cardiac causes by vigorous exertion. N Engl J Med, 343: 1355–1361.
• 2. Alegria J R, Herrmann J, Holmes D R, Lerman Jr A, Rihal CS (2005) Myocardial bridging. Eur Heart J, 26: 1159–1168.
• 3. Angelini P (2007) Coronary artery anomalies: an entity in search of an identity. Circulation, 115: 1296–1305.
• 4. Ballesteros LE, Ramirez LM (2008) Morphological expression of the left coronary artery: a direct anatomical study. Folia Morphol, 2008; 67: 135–142.
• 5. Bayram E, Kocatürk H, Kantarc M, Fil F, Cengizolak M (2008) Anomalous origin of the right coronary artery arising from the left anterior descending artery in a case with single coronary artery anomaly: multi-detector computer tomography imaging. Anadolu Kardiyol Derg, 8: 381–392.
• 6. Dirksen MS, Bax JJ, Blom NA, Schalij MJ, Jukema WJ, Vliegen HW (2002) Detection of malignant right coronary artery anomaly by multi-slice CT coronary angiography. Eur Radiol, 12: 177–180.
• 7. Engel HJ, Torres C, Page HL (1975) Major variations in anatomical origin of the coronary arteries: angiographic observations in 4250 patients without associated congenital heart disease. Catheter Cardiovasc Diagn, 1: 157–169.
• 8. Hazirolan T, Canyigit M, Karcaaltincaba M, Dagoglu MG, Akata D, Aytemir K, Besim A (2007) Myocardial Bridging on MDCT. AJR, 2007; 188: 1074–1080.
• 9. Ishikawa Y, Akasaka Y, Ito K, Akishima Y, Kimura M, Kiguchi H, Fujimoto A, Ishii T (2006) Significance of anatomical properties of myocardial bridge on atherosclerosis evolution in the left anterior descending coronary artery. Atherosclerosis, 186: 380–389.
• 10. Kantarci M, Duran C, Durur I, Alper F, Onbas O, Gulbaran M, Okur A (2006) Detection of myocardial bridging with ECG-gated MDCT and multiplanar reconstruction. AJR, 186: S391–S394.
• 11. Kawawa Y, Ishikawa Y, Gomi T, Nagamoto M, Terada H, Ishii T, Kohda E (2007) Detection of myocardial bridge and evaluation of its anatomical properties by coronary multi slice spiral computed tomography. Eur J Radiol, 61: 130–138.
• 12. Ko SM, Choi JS, Nam CW, Hur SH (2008) Incidence and clinical significance of myocardial bridging with ECG-gated 16-row MDCT coronary angiography. Int J Cardiovasc Imag, 24: 445–452.
• 13. Kosiński A, Grzybiak M (2001) Myocardial bridges in the human heart: morphological aspects. Folia Morphol, 2001; 60: 65–68.
• 14. Krishnamoorthy A, Venkatesh G, Vijayakumar M, Preeetham K, Ramanathan M. (2008) Diagnosis of anomalous origin of left coronary artery from pulmonary artery in an adult by 64-slice CT angiography. Indian Heart J, 60: 366–367.