Fig. 1
From: Status and potential clinical value of a transthoracic evaluation of the coronary arteries
Images of Left Main Coronary Artery (Panel a) and Right Coronary artery (segment 2, Panel b) by trans thoracic echocardiography. Coronary artery walls are visible as two linear echos. Yellow line: luminal diameter of the vessel; blue arrowheads: the external boundary of the vessel