Valuation of 256 - multidetector computer tomographyin detective of Coronary Artery Fistulas and literature review

SUMMARY

Background: Coronary artery anomalies can be included into anomalies of origin, course, structure and termination. Coronary artery fistula (CAFs) are rare congenital cardiacvascular anomalus with an abnormal connection between coronary artery termination and a great vessel or cardiac chamber.

Purpose: The valuation of MDCT 256 – slices findings coronary artery fistula.

Material and method: This retrospective cross – sectional study involved 1849 patients underwent 256 - slices coronary computer tomography angiography (CCTA) at the Huu Nghi Viet – Xo hospital between July 2017 and July 2018. We evaluated the quantity and classify of CAFs, the vessel of origin, conduit site, measure of varicose vein, size of aneurysm. We also evaluated the coronary artery attach anomalies.

Result: Included in 1849 patients underwent 256 slices CCTA, we determined 17 (0,92%) patients had CAFs (11 men, 6 women; main age 70, age range 54-88 years; 17/17 patients undergoing first time with chest pain). The source of origin of CAFs, 11 (64,7%) patients had two sources. The type of CAFs detected, 15 (88,2%) patients had coronary to pulmonary trunk artery fistula. The CAFs with two sources of origin had most frequency of manifestration for varicose vein and aneurysm. We also findings 6 (35,3%) patients had coronary artery attach anomalies, 4/6 patients had myocardial bringing.

Conclusion: The coronary artery fistula are un common congenital cardiac anomalies. Our study dertemined 0,92%, which is higher than the known ratio base on literature review. The most common type of CAFs was coronary to pulmonary trunk artery. Coronary CTA with different rendering menthods had been s useful, noninvasive imaging for the diagnosis of CAFs and other coronary anomalies.

Keywords:Coronary artery anomalous, coronary artery fistular, multidetector computer tomography, coronary CT angiography.