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  • Articles: DFG German National Licenses  (3)
  • Impedance plethysmography  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Measurement of digital blood flow using the laser Doppler, impedance and strain-gauge methods (1990)
    Springer
    Medical & biological engineering & computing 28 (1990), S. 113-118 
    Details
    ISSN: 1741-0444
    Keywords: Digital blood flow ; Impedance plethysmography ; Laser Doppler ; Occlusion plethysmography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Digital volume changes and blood flow have been measured with impedance and strain-gauge plethysmography as well as with laser Doppler flowmetry. A good agreement was found between the impedance and strain-gauge flow measurements with a correlation coefficient of 0·905. The laser Doppler method recorded minor changes in finger skin blood flow following changes in posture from 30 cm below heart level to 60 cm above heart level. This result can be explained as a consequence of the limited penetration depth of laser light into the skin or as a sign of autoregulation of skin blood flow. In these experiments the total blood flow to the finger underwent major changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441765
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Impedance plethysmography for blood flow measurements in human limbs (1992)
    Springer
    Medical & biological engineering & computing 30 (1992), S. 518-524 
    Details
    ISSN: 1741-0444
    Keywords: Blood flow in human limb ; Cross-sectional area ; Impedance plethysmography ; Strain gauge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The cross-sectional area of a limb varies along the extremity. This is of great importance when impedance plethysmography is used for limb blood flow studies. The actual measurement site, as well as the interelectrode distance, must be carefully selected to avoid underestimation of the blood flow value. The distance between the potential electrodes should be less than 10 cm for an adult subject.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457831
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Impedance plethysmography in human limbs (1991)
    Springer
    Medical & biological engineering & computing 29 (1991), S. 419-424 
    Details
    ISSN: 1741-0444
    Keywords: Blood flow in human limbs ; Disk electrode ; Electrode system ; Impedance plethysmography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Electrode design and electrode positioning are important factors in blood flow measurements using impedance plethysmography. Optimal electrode type and accurate positioning will decrease measurement errors and improve the signal-to-noise-ratio. Disk electrodes were found to be superior to tape electrodes because of their better skin-electrode stability and because they prevent limb compression. The distance between current electrodes and potential electrodes should be greater than 2·3 R (disk electrodes) and 1·5 R (tape electrodes) to avoid the influence of the so-called diffusion resistance (R is the radius of the limb at the electrode site).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441664
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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