Correlation of Doppler derived velocity change with cardiac index.
Doppler ultrasound may be used as a screen to determine the need for placement of a pulmonary artery catheter. We tested the utility of Doppler derived acceleration, in correlation with pulmonary artery catheter derived cardiac index, as a screen for pulmonary artery catheter placement in 40 trauma patients. We found the expected quadratic relationship between acceleration and cardiac index. We also found that acceleration less than 200 cm/s2 correlates well with cardiac index less than 3.0 liter/min/m2.
Nowzari
F
F
Department of Surgery, West Virginia University School of Medicine, Morgantown 26506-9238, USA.
Chendrasekhar
A
A
D001783:Blood Flow Velocity; D002302:Cardiac Output / Q000502:physiology*; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging*; D002407:Catheterization, Swan-Ganz; D006801:Humans; D010101:Oxygen Consumption; D012039:Regional Blood Flow; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler