NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Densitography - A new method for evaluation of cardiac performance of rest and during exercise.The validity of the densitographic curves obtained from the pinna of the ear for measuring the systolic intervals has been investigated in 28 subjects. This technique is found to permit the performance of noninvasive physiologic studies during physical activities, exercise tests, flight conditions, and probably long-term monitoring of critically ill patients. Densitographic curves constitute an excellent substitute by which to measure time-base intervals of the cardiac cycle when the carotid pulse tracing is not available.
Document ID
19720041834
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chirife, R.
Spodick, D. H.
(Lemuel Shattuck Hospital; Tufts University; Boston University, Boston, Mass., United States)
Date Acquired
August 6, 2013
Publication Date
April 1, 1972
Publication Information
Publication: American Heart Journal
Volume: 83
Subject Category
Biotechnology
Accession Number
72A25500
Funding Number(s)
CONTRACT_GRANT: NGR-22-012-006
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available