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Problems in the Clinical Interpretation of Impedance Plethysmogram and Rheoencephalogram

  • John H. Seipel

Abstract

It must be accepted that the clinical use of impedance plethysmography, and rheoencephalography (REG) in particular, remains controversial. Other participants in this Conference will doubtless discuss the safety factors which must be considered in the design and construction of equipment to be used in impedance plethysmography. Such factors are, of course, important and are particularly significant when human study is intended. It should be remembered, however, that the proper design, construction, and clinical use of such equipment comprise only the first half of the complete safety problem. The patient remains at considerable risk after his tracing is completed and he has left the tracing suite.

Keywords

Safety Factor Bioelectric Impedance Considerable Risk Clinical Interpretation Psychiatric Research 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Seipel, J. U., The biophysical basis and clinical application of rheoencephalography. Neurology, 17: 443–451. (1967)PubMedGoogle Scholar
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  5. Seipel, J. H., On the obligatory existence of the impedance plethysmogram. In ‘Basic Factors in Bioelectric Impedance Measurements of Cardiac Output, Lung Volume, and the Cerebral Circulation, edited by R. R. Allison, Instrument Society of America, Pittsburgh, Pennsylvania, 107–131 (1970).Google Scholar
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    Seipel, J. H., A general theory of plethysmography, its methods, and its applications. In preparation.Google Scholar

Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • John H. Seipel
    • 1
    • 2
    • 3
  1. 1.Neurology DepartmentMaryland State Psychiatric Research CenterBaltimoreUSA
  2. 2.Friends of Psychiatric Research, Inc.USA
  3. 3.Georgetown University HospitalUSA

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