(Downloading may take up to 30 seconds. If the slide opens in your browser, select File -> Save As to save it.)
Terms and Conditions for Use
Click on image to view larger version.
View larger version (133K)
Figure 1. Schematic drawing (left) and maximum intensity projection CT image obtained after injection of intravenous contrast material (right) show the left atrium (LA) and right pulmonary veins in the transverse plane to demonstrate the application of definitions. The dotted lines represent the extrapolated border of the left atrium. If the distance between this virtual border and the bifurcation of both pulmonary veins (arrows) is 0.5 cm or larger, as in this example, the ostium of both pulmonary veins is a common ostium because both veins enter the border of the left atrium trough a common trunk. RIPV = right inferior pulmonary vein, RSPV = right superior pulmonary vein.
