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American Journal of Roentgenology, Vol 98, 487-491, Copyright © 1966 by American Roentgen Ray Society

THE APPLICATION OF THE IMPEDANCE PNEUMOGRAPH TO CHEST ROENTGENOGRAPHY

A USEFUL MEDICAL BY-PRODUCT OF THE SPACE PROGRAM

E. NICHOLAS SARGENT M.D.1, THOMAS L. ROBERTSON 2, EARL V. WAGONER JR. 3, and BERNARD J. O'LOUGHLIN M.D.4

1 Director of Radiology Services, Orange County General Hospital, Orange, California
2 Research Engineer, Life Sciences Department, Space and Information Systems Division, North American Aviation, Inc., Downey, California
3 Biophysics Project Manager, Life Sciences Department, Space and Information Systems Division, North American Aviation, Inc., Downey, California
4 Chairman, Department of Radiology Sciences, California College of Medicine, Los Angeles, California

A practical application of impedance changes in the chest during respiration has resulted in an insturment which can control the time of x-ray exposure during chest roentgenography at any desired period of respiration. The instrument,* designed by North American Aviation Space and Information Systems Division, is a by-product of the Space program, contributing a useful medical device as applied to chest roentgenography.


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Copyright © 1966 by the American Roentgen Ray Society.