Dr Cartan Costello Senior Staff Specialist in ICU at Wollongong Hospital where he leads a critical-care echocardiography and ultrasound clinical service and teaching program. Founding member and current chair of Ultrasound Special Interests Group of College of Intensive Care. He has helped author all USIG guidelines related to POCUS use within Australia and New Zealand Intensive Care. His areas of interest include ultrasound guidance of hemodynamics.