Proximal and distal measurements of extracellular and total body water by multi-frequency bio-impedance analysis in surgical patients.
Measurements of extracellular water (ECW) and total body water (TBW) can be useful when assessing the nutritional status of surgical patients. The simple and non-invasive nature of bio-impedance techniques may allow repeat measurements to assess clinically significant changes in ECW and TBW. We have evaluated bio-impedance spectroscopy (BIS) and multi-frequency bio-impedance analysis (MFBIA) using radioisotope dilution as the independent method.
Hannan
W J
WJ
Department of Medical Physics, Western General Hospital, Edinburgh, U.K.
Cowen
S J
SJ
Plester
C
C
Fearon
K C
KC
D001823:Body Composition; D001834:Body Water; D004487:Edema; D017097:Electric Impedance; D006801:Humans; D008962:Models, Theoretical; D011865:Radioisotope Dilution Technique; D012044:Regression Analysis; D015203:Reproducibility of Results; D013514:Surgical Procedures, Operative