Luiz F Maracaja MD
1.The imaging acquisition starts with a standard ME 2-chamber view. In this view, the left main coronary artery (LMCA) or CX frequently is visualized in SAX view underneath the left atrial appendage. 2. Activate the orthogonal imaging and move the cursor directly into the vessels located in the atrioventricular groove just underneath the left atrial appendage, which could be the CX, LMCA, or GCV. The orthogonal plane displays a longitudinal view, allowing differentiation of these vessels by showing the LMCA continuous with the CX and frequently a short segment of the LAD. 3. Adjust the position of the color flow Doppler (CFD) sector, focusing on the atrioventricular groove, and use low-velocity scale (15–30 cm/s). Reducing the CFD sector size will increase the resolution, improve the frame rate, and enhance flow imaging.