Haemodynamic Monitoring Using Echocardiography in the Critically Ill: A Review

Figure 4

IVC diameter, measured using M-mode from the subcostal view. The minimum and maximum diameters are used to calculate the IVC distensibility and/or variability index. (Courtesy of A. McLean, S. Huang, and I. Ting, Nepean Critical Care Echo Group, Nepean Hospital, Sydney University, Australia).