Glossary

A B C D E F H I L O P Q R T U V X Z 



A

ATM
ATM (Adipose Tissue Mass) is the mass of adipose tissue, including the adipose water. The BCM - Body Composition Monitor device calculates ATM on basis of measurements using a physiological model.

B

BCM
BCM (Body Cell Mass) represents the cellular, metabolically active body mass. Not included is the extracellular fluid in the metabolically active tissue. The device calculates BCM on basis of measurements using a physiological model.

Bioimpedance
The bioimpedance represents the AC-resistance and is measured in ohms. It consists of two components: the real part (resistance) and the imaginary part (reactance). The abbreviation for the impedance is Z.

BIS
BIS (Bioimpedance spectroscopy) is a technology that measures body impedance in a frequency range between 5 kHz and 1 MHz. Using a physiological model, the impedance values are used to determine body composition.

BMI
The BMI (Body Mass Index) represents body weight in relation to body surface area (kg/m2).

BP
Blood pressure

BP sys
Systolic blood pressure

BP dia
Diastolic blood pressure

BP pre
Blood pressure before treatment

BP sys
Blood pressure

 


C

Chipcard reader
The cardreader is used to transfer data on a chipcard to the computer.
Only the cardreader delivered together with the BCM – Body Composition Monitor can be used.

CKD
Chronic kidney disease

D

DEXA / DXA

DXA (Dual x-ray absorptiometry) is a reference method for determination of bone density, lean and fat mass.


E

ECW
ECW (Extracellular Water) consists of the interstitial water, the plasma water and the transcellular water. It represents the amount of water in the body which is not inside cells. ECW is calculated by BCM - Body Composition Monitor device on basis of the modified Hanai Model using the measured impedance values; it is validated against a reference method (sodium bromide).

Export function
The export function in the FMT is used to make data available to another program.It saves the data in the Windows Clipboard.

F

Fat
Fat represents the mass of adipose lipids in the body. Not included is the water content of adipose tissue. FMT shows fat in kilograms [kg] as well as in relation to body weight (%).

 

FFM
FFM (fat free mass) represents the total patient weight excluding fat mass.

FMT
Fluid Management Tool

FTI
FTI (Fat Tissue Index) is defined as the quotient of ATM/Height² [kg/m²]. Together with LTI it allows an assessment of the nutrition status.



H

HD
Hemodialysis

 

Hypertension
High blood pressure

 

Hypotension
Low blood pressure


I

ICW
The ICW (Intracellular water) represents the total volume of intracellularwater. ICW is calculated by BCM - Body Composition Monitor device on basis of the modified Hanai Model using the measured impedance values; it is validated against reference methods (the total body potassium method).

Impedance plane
The raw data of a bioimpedance measurement is usually presented in the impedance plane. The x-axis represents the resistance and the y-axis usually denotes the reactance.

L

LTI
LTI (Lean Tissue Index) is calculated as the quotient of LTM/Height² (kg/m²). The LTI gives information about the nutrition status.

 

LTM
LTM (Lean Tissue Mass) represents the body mass without adipose tissue and excess extracellular water (overhydration). FMT shows LTM in kilograms (kg) as well as in relation to body weight (%).


O

OH
Overhydration represents the excess fluid (fluid overload) stored almost exclusively in the extracellular volume of a patient, and is therefore part of the ECW.

P

PD
Peritoneal dialysis

 

Pre ESRD
Phase before start of the first dialysis treatment.


Q

Q
Quality of the Cole-optimisation (0 = bad, 100 = very good)

R

R
Resistance. See also: Impedance

 

Raw data
The BCM - Body Composition Monitor device measures the body impedance at 50 different frequencies between 5 kHz and 1 MHz. An impedance value consists of two components: the resistance and the reactance. The raw data is usually depicted in the impedance plane.

 

Reference range
The reference ranges have been compiled on basis of a population of 1000 healthy persons and are separated for gender.


T

TBW
Total Body Water. TBW has been validated using the dilution method (Deuterium).

U

UFV
UFV (Ultrafiltration volume) of the dialysis patient represents the amount of fluid removed in a dialysis session.

V

V
V (Urea distribution volume) is used for dose calculations (another term for TBW)

X

X
Reactance. See also: Impedance

Z

Z
See Biompedance