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BAROPLETHYSMOGRAPHY: A METHOD OF ESTIMATING BLOOD FLOW
Author(s) -
Pickles V. R.
Publication year - 1952
Publication title -
quarterly journal of experimental physiology and cognate medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0033-5541
DOI - 10.1113/expphysiol.1952.sp000992
Subject(s) - plethysmograph , blood flow , human blood , reliability (semiconductor) , constant (computer programming) , flow (mathematics) , occlusion , biomedical engineering , computer science , mathematics , medicine , physiology , physics , thermodynamics , geometry , power (physics) , programming language
1. A baroplethysmographic method proposed previously for measuring human mammary blood flow is summarized and its reliability examined. 2. Experiments on the human hand, in comparison with occlusion plethysmography, show fair agreement between the two methods, except for the fact than an approximately constant quantity, possibly representing movement of tissues other than blood, is included in the estimates given by baroplethysmography. 3. The possible sources of error, and ways of overcoming some of them, are discussed. The method is not recommended for use on organs whose blood flow can be measured by occlusion plethysmography, but it can give useful estimates of human mammary blood flow.