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1 Division of Thoracic and Cardiovascular Surgery, Charles R. Drew Postgraduate Medical School at the Martin Luther King, Jr. General Hospital, Los Angeles; Department of Electronics Instrumentation, City of Hope National Medical Center, Duarte, California
The application of bioelectric impedance to the measurement of tissue volume changes, long discussed, is with today's electronics innovations now a reality. The theory of this noninvasive technique is conceptually explained. its application to continuous monitoring of the chest is described using three impedance devices, one of which was designed and developed by us. Clinical cases are described to illustrate its value in the early detection of pulmonary problems such as post-traumatic pulmonary insufficiency, congestive heart failure, and atelectasis, adn in following the clinical course of patients with these special problems.
Submitted on March 14, 1973
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