@kgzimmerman If your imaging plane shows the IVC emptying into the RA, measure the diameter 1-2 cm from that junction. If the junction of the hepatic vein is also noted in the imaging plane move 1 cm proximal to this junction to make your IVC diameter measurement.
@kgzimmerman Some ultrasound systems will allow you to measure a vertical distance at two different points in time and some may not. It is important to know that TAPSE is the vertical distance from trough to peak and to know how your system is set up to perform this measurement. #ASEchoJC