Predicting body cell mass with bioimpedance by using theoretical methods: a technological review.

  title={Predicting body cell mass with bioimpedance by using theoretical methods: a technological review.},
  author={Antonino De Lorenzo and Angela Andreoli and James R. Matthie and P O Withers},
  journal={Journal of applied physiology},
  volume={82 5},
The body cell mass (BCM), defined as intracellular water (ICW), was estimated in 73 healthy men and women by total body potassium (TBK) and by bioimpedance spectroscopy (BIS). In 14 other subjects, extracellular water (ECW) and total body water (TBW) were measured by bromide dilution and deuterium oxide dilution, respectively. For all subjects, impedance spectral data were fit to the Cole model, and ECW and ICW volumes were predicted by using model electrical resistance terms RE and Rt in an… 

New equations for estimating body cell mass from bioimpedance parallel models in healthy older Germans.

  • M. DittmarH. Reber
  • Medicine
    American journal of physiology. Endocrinology and metabolism
  • 2001
It is concluded that the newly derived equations improved BCM estimates in the elderly compared with existing equations, and there was no advantage of MFBIA over SFBIA equations.

Assessment of intracellular water by whole body bioelectrical impedance and total body potassium in HIV-positive patients.

BIA is an unreliable method to estimate ICW in this population of male HIV-infected outpatients, in contrast to the better established estimation of total body water and extracellular water.

Total body water measurement by a modification of the bioimpedance spectroscopy method

A method for calculating directly total body water (TBW) volumes (Vt) from whole body resistance extrapolated at infinite frequency (R∞) using a XITRON 4200 impedance meter was proposed and predicted a mean water loss equal to 94% of ultrafiltered volume.

Estimation of Body Composition in Dialysis Patients Using Segmental Bioimpedance

The sBIS model is useful to assess body composition in dialysis patients as well as bioimpedance-derived resistances, Wt, H, and age as independent variables.

Bioelectrical impedance spectroscopy in growth hormone-deficient adults

Water compartment assessment by bioelectrical impedance spectroscopy by Xitron 4000B in 164 growth hormone-deficient adults on growth hormone replacement therapy was evaluated, the assumed constant body density and gender-specific resistivities in BIS methodology were examined and a published BMI-adjusted BIS equation was evaluated.

Validation of different bioimpedance analyzers for predicting cell mass against whole‐body counting of potassium (40K) as a reference method

  • M. DittmarH. Reber
  • Biology
    American journal of human biology : the official journal of the Human Biology Council
  • 2004
Because both BIA devices overestimate BCM, the newly developed device‐specific equations which reduce bias and limits of agreement should be applied.

Measurement of nutritional status in simulated microgravity by bioelectrical impedance spectroscopy.

BIS may have potential for measuring nutritional status during spaceflight, but its limitations in precision and insensitivity to acute ICW changes warrant further validation studies.

Use of bioelectrical impedance spectroscopy to provide a measure of body composition in sows.

Prediction of body water compartments in preterm infants by bioelectrical impedance spectroscopy

BIS appears to have limited clinical utility; however, the relatively small bias means that it may be useful for measurements within a population or for comparisons between groups in which population means rather than individual values are compared.

Validation of bioelectrical-impedance measurements as a method to estimate body-water compartments.

Results from BIS and BIA were comparable, but it is argued that BIS has the potential of improved standardization of the method.

Estimation of extracellular and total body water by multiple-frequency bioelectrical-impedance measurement.

BI at dual frequencies is valid for determination of body-water compartments and may be useful in the nutritional assessment of patients in whom body water and hydration is of clinical concern.

Fluid changes during pregnancy: use of bioimpedance spectroscopy.

Results suggest that BIS may be useful in estimating volumes of ECF and TBW during pregnancy, and examine the accuracy of bioelectrical impedance spectroscopy for estimating fluid volumes before, during, and after pregnancy.

A new method for monitoring body fluid variation by bioimpedance analysis: the RXc graph.

A new approach is presented for routine monitoring of the body fluid variation in the single patient, without making any assumption on body composition, based on the analysis of the bivariate distribution of the impedance vector in a healthy population and in patients with increased body weight, due to either obesity or edema from renal diseases.

Estimation of Total Body and Extracellular Water Using Single-and Multiple-Frequency Bioimpedance

Compared with SFB, the MFB approach is a more precise and less biased predictor of TBW and ECW volumes in young, healthy adults, and may offer more accurate assessment in subjects with aberrant physiology.

Use of bioimpedance spectroscopy to determine extracellular fluid, intracellular fluid, total body water, and fat-free mass.

This work has shown that high frequency currents show little effect due to cell membrane capacitance so current flows through both ECF and ICF more uniformly and proportionally to the relative conductivities and volumes of the compartments.

Nutritional assessment with bioelectrical impedance analysis in maintenance hemodialysis patients.

Bioelectrical impedance analysis is a valid and reliable method of nutritional assessment in maintenance hemodialysis patients and is in excellent agreement with D2O dilution.

Improved prediction of extracellular and total body water using impedance loci generated by multiple frequency bioelectrical impedance analysis

A significant (P < 0.01) improvement in the prediction of TBW and ECW using multiple frequency bioelectrical impedance analysis (MFBIA) is demonstrated.

Effect of aging on the body composition of dialyzed subjects. Comparison with normal subjects.

Men and women on hemodialysis showed different effects of aging: women normalized their BC at an age > 70 years, whereas men continued to have a muscle mass lower than that of normal subjects until the age of 80.

Whole-body impedance--what does it measure?

The bioengineering basis for the bioelectrical impedance technique is critically presented and considerations are proposed that might help to clarify the method and potentially improve its sensitivity.