Problems in the Clinical Interpretation of Impedance Plethysmogram and Rheoencephalogram

  • John H. Seipel


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.


Safety Factor Bioelectric Impedance Considerable Risk Clinical Interpretation Psychiatric Research 
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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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