A modified fast laser-Doppler flowmetry to measure the pulsatile microcirculation in rats

被引：0

作者：

Jan, MY ^{[1
]}

Hsiu, H ^{[1
]}

Wang, YYL ^{[1
]}

Wang, WK ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan

来源：

PROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 20, PTS 1-6: BIOMEDICAL ENGINEERING TOWARDS THE YEAR 2000 AND BEYOND | 1998年 / 20卷

关键词：

LDF; pulsatile microcirculation; time constant;

D O I：

10.1109/IEMBS.1998.745932

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

A fast Laser-Doppler flowmetery (fLDF) modified from a commercial one to measure the pulsatile microcirculation in rats. The time constant (TC) of the integrator in the analogy circuit of the LDF was modified; the frequency response of the modification was simulated by PSPICE to estimate the high 3dB frequency. The coefficients of variance (CV) of 32 2-secod ensembles of flux in the calibration standard measured by the commerical 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.

引用

页码：415 / 416

页数：2

共 7 条

[1] MODEL FOR LASER DOPPLER MEASUREMENTS OF BLOOD-FLOW IN TISSUE
BONNER, R
NOSSAL, R
[J]. APPLIED OPTICS, 1981, 20 (12) : 2097 - 2107
[2] INTAGLIETTA M, 1970, Microvascular Research, V2, P462, DOI 10.1016/0026-2862(70)90039-7
[3] JAN MY, UNPUB IEEE T BME
[4] JAN MY, 1997, P WORLD C MED PHYS B, P626
[5] EVALUATION OF PULSATILE AND NONPULSATILE FLOW IN CAPILLARIES OF GOAT SKELETAL-MUSCLE USING INTRAVITAL MICROSCOPY
LEE, JJ
TYML, K
MENKIS, AH
NOVICK, RJ
MCKENZIE, FN
[J]. MICROVASCULAR RESEARCH, 1994, 48 (03) : 316 - 327
[6] Shepherd AP., 1990, LASER DOPPLER BLOOD
[7] FOURIER-TRANSFORM ANALYSIS OF PERIODIC VARIATIONS OF RED-CELL VELOCITY IN CAPILLARIES OF RESTING SKELETAL-MUSCLE IN FROGS
TYML, K
GROOM, AC
[J]. MICROVASCULAR RESEARCH, 1980, 20 (01) : 9 - 18

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