A modified fast laser-Doppler flowmetry to measure the pulsatile microcirculation in rats
Resource
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Journal
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Pages
-
Date Issued
1998-11
Date
1998-11
Author(s)
Jan, Ming-Yie
Hsiu, Hsin
Wang, Yuh-Ying Lin
Wang, Wei-Kung
DOI
N/A
Abstract
A fast laser-Doppler flowmetry (LDF) is modified from a commercial one to measure the pulsatile microcirculation in rats. The time constant (TC) of the integrator in the analogue circuit of the LDF was modified; the frequency response of the modification was simulated by PSPICE to estimate the high 3 dB frequency. The coefficients of variance of 32 2-second ensembles of flux in the calibration standard measured by the commercial LDF and the modified one were less than 2%. The animal tests also clearly demonstrated the pulsatile microcirculation on the renal cortex in the rat.
Type
journal article
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