Samuel M Brown1,2, Hiroshi Sekiguchi3, Michael R Pinsky4. 1. 1 Critical Care Echocardiography Service, Intermountain Medical Center, Murray, Utah. 2. 2 Pulmonary and Critical Care Medicine, University of Utah, Salt Lake City, Utah. 3. 3 Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota; and. 4. 4 Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.