Fig. 3From: Association of infraclavicular axillary vein diameter and collapsibility index with general anesthesia-induced hypotension in elderly patients undergoing gastrointestinal surgery: an observational studyReceiver operating characteristic curves indicates the AXV-CI and IVC-CI for predicting hypotension after anesthesia induction. (AXV-CI, collapsibility index of the axillary vein; IVC-CI, collapsibility index of the inferior vena cava)Back to article page