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Mean Expected Error in Prediction of Total Body Water [Elektronisk resurs] A True Accuracy Comparison between Bioimpedance Spectroscopy and Single Frequency Regression Equations

Seoane, Fernando (författare)
Abtahi, Shirin (författare)
Abtahi, Farhad, 1981- (författare)
Ellegård, Lars (författare)
Johannsson, Gudmundur (författare)
Bosaeus, Ingvar (författare)
Ward, Leigh C (författare)
KTH Skolan för teknik och hälsa (STH) (utgivare)
Publicerad: Hindawi Publishing Corporation, 2015
Engelska.
Ingår i: BioMed Research International. - 2314-6133.
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  • For several decades electrical bioimpedance (EBI) has been used to assess body fluid distribution and body composition. Despite the development of several different approaches for assessing total body water (TBW), it remains uncertain whether bioimpedance spectroscopic (BIS) approaches are more accurate than single frequency regression equations. The main objective of this study was to answer this question by calculating the expected accuracy of a single measurement for different EBI methods. The results of this study showed that all methods produced similarly high correlation and concordance coefficients, indicating good accuracy as a method. Even the limits of agreement produced from the Bland-Altman analysis indicated that the performance of single frequency, Sun’s prediction equations, at population level was close to the performance of both BIS methods; however, when comparing the Mean Absolute Percentage Error value between the single frequency prediction equations and the BIS methods, a significant difference was obtained, indicating slightly better accuracy for the BIS methods. Despite the higher accuracy of BIS methods over 50 kHz prediction equations at both population and individual level, the magnitude of the improvement was small. Such slight improvement in accuracy of BIS methods is suggested insufficient to warrant their clinical use where the most accurate predictions of TBW are required, for example, when assessing over-fluidic status on dialysis. To reach expected errors below 4-5%, novel and individualized approaches must be developed to improve the accuracy of bioimpedance-based methods for the advent of innovative personalized health monitoring applications. 

Ämnesord

Engineering and Technology  (hsv)
Electrical Engineering, Electronic Engineering, Information Engineering  (hsv)
Signal Processing  (hsv)
Teknik och teknologier  (hsv)
Elektroteknik och elektronik  (hsv)
Signalbehandling  (hsv)
Medical Engineering  (hsv)
Other Medical Engineering  (hsv)
Medicinteknik  (hsv)
Annan medicinteknik  (hsv)
Medical and Health Sciences  (hsv)
Medicin och hälsovetenskap  (hsv)
Medical and Health Sciences  (hsv)
Clinical Medicine  (hsv)
Urology and Nephrology  (hsv)
Medicin och hälsovetenskap  (hsv)
Klinisk medicin  (hsv)
Urologi och njurmedicin  (hsv)

Indexterm och SAB-rubrik

Bioimpedance Spectroscopy
Body Composition Analysis
Total Body Water
Hanai-Mixture Theory
Volume Prediction Equations
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