Q. Define Direct Visualisation of Coronary Arteries?
Ans.
Coronary arteries cad be directly visualized using two-dimensional echocardiography, especially in patients with good window. The commonest artery to be seen is the left main, proximal LAD and LCx in the SAX view the level of aortic valve. RCA and LCx can be seen in the AV groove using apical window. The arteries are not visualized as a continuous channel; they are seen in small portions in diaerent phases of cardiac cycle. The visualization is better on Transesophageal echocardiography.