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By rotating the probe so that the indicator is cephalad, the IVC can be seen as a long anechoic tube running across the screen and ending in the right atrium. This is confirmed to be the IVC by the presence of a hepatic vein draining into it, as well as the presence of liver on both the near and far sides as well as the right atrium on the right side of the screen. This IVC (mine) collapses completely with a sniff, but represents a normal intravascular volume.