NDLI: Developments in Blood Perfusion Measurements Using the Forced Convection Approach

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Nicholson, Christopher P. Murray, Darina B.
Copyright Year	2008
Abstract	This paper reports on an investigation into the relationship between blood perfusion in the tissues of the limbs and thermal measurements at the skin surface during cooling under an array of impinging air jets. The technique is known as the forced convection approach. The objective was to address a number of the simplifying assumptions made in previous studies in order to establish the feasibility of measuring perfusion using this technique. The study is concerned with investigating the thermal aspects rather than the physiological reasons for a given perfusion measurement. Advances from previous studies are made in the area of modeling where magnetic resonance imaging scans of the test subject’s leg are used to develop more physiologically realistic models. A new technique is then outlined to simultaneously assess skin and muscle perfusion from one noninvasive test at the skin surface. It is established that the sensitivity of the forced convection approach, when based on surface temperature measurements, is not high enough to allow an accurate determination of perfusion. Future work will use nonbiological mock-ups to investigate the capabilities of the method proposed for measuring skin and muscle perfusion simultaneously. If this testing is successful, a study will be conducted on the application of this approach to other thermal perfusion measurement techniques.
Starting Page	091101
Ending Page	091106
Page Count	6
File Format	PDF
ISSN	00221481
e-ISSN	15288943
Journal	Journal of Heat Transfer
Volume Number	130
Issue Number	9
DOI	10.1115/1.2944251
Language	English
Publisher	The American Society of Mechanical Engineers
Publisher Date	2008-07-14
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biological tissues Blood Cooling Equations Forced convection Measurement Modeling Muscle Skin Temperature Testing
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Mechanics of Materials Condensed Matter Physics Materials Science

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