Problems in the Clinical Interpretation of Impedance Plethysmogram and Rheoencephalogram
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.
Unable to display preview. Download preview PDF.
- 2.Seipel, J. h., The biophysical basis and clinical application of rheoencephalography. Aviation Medical Report I/AM 67–11.Google Scholar
- 3.Seipel, J.II., The influence of electrode size and material on the rehoencephalogram. International Conference on Bioelectrieal Impedance, New York Academy of Sciences, Sept. 29-Oct. 1, 1969,pp.604621.Google Scholar
- Seipel, J. H., Ziemnowicz, S.A.R., and O’Doherty, D.S., Cranial impedance plethysmography–nheoencephalography as a method of detection of cerebrovascular disease. In ’’Cerebral Ischemia’, edited by E. Simonson and T. H. McGavack, C. C. Thomas, Springfield, Illinois, 162–180 (1964)Google Scholar
- 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
- 6.Seipel, J. H., A general theory of plethysmography, its methods, and its applications. In preparation.Google Scholar