51. A phantom tissue system for the calibration of perfusion measurements.
- Author
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Mudaliar AV, Ellis BE, Ricketts PL, Lanz OI, Scott EP, and Diller TE
- Subjects
- Biomimetics methods, Calibration, Equipment Design, Equipment Failure Analysis, Humans, Rheology methods, Rheology standards, Biomimetics instrumentation, Blood Flow Velocity physiology, Phantoms, Imaging, Rheology instrumentation, Skin blood supply, Skin Physiological Phenomena
- Abstract
A convenient method for testing and calibrating surface perfusion sensors has been developed. A phantom tissue model is used to simulate the nondirectional blood flow of tissue perfusion. A computational fluid dynamics (CFD) model was constructed in Fluent(R) to design the phantom tissue and validate the experimental results. The phantom perfusion system was used with a perfusion sensor based on clearance of thermal energy. A heat flux gage measures the heat flux response of tissue when a thermal event (convective cooling) is applied. The blood perfusion and contact resistance are estimated by a parameter estimation code. From the experimental and analytical results, it was concluded that the probe displayed good measurement repeatability and sensitivity. The experimental perfusion measurements in the tissue were in good agreement with those of the CFD models and demonstrated the value of the phantom tissue system.
- Published
- 2008
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