ATTENUATION AND SPEED OF 10-MHZ ULTRASOUND IN CANINE BLOOD OF VARIOUS PACKED-CELL VOLUMES AT 37-DEGREES-C

被引：12

作者：

HUGHES, DJ ^{[1
]}

GEDDES, LA ^{[1
]}

BABBS, CF ^{[1
]}

BOURLAND, JD ^{[1
]}

NEWHOUSE, VL ^{[1
]}

机构：

[1] PURDUE UNIV,CTR BIOMED ENGN,W LAFAYETTE,IN 47907

来源：

MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 1979年 / 17卷 / 05期

关键词：

Attenuation coefficient; Blood; Packed-cell volume; Ultrasound;

D O I：

10.1007/BF02440906

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The attenuation coefficient and the speed of 10 MHz ultrasound were determined in canine blood at 37°C by a differential path-length technique. Blood specimens with packed-cell volumes (p.c.v) ranging from 0 to 53% were prepared by separating the cells from the plasma and mixing the two components. The mean attenuation coefficient increased linearly with packed-cell volume, the least squares regression function being α=0·992+0·039 PCV with a standard error of the estimate=0·255. The speed of 10 MHz ultrasound c in millimetres per second, increased with packed-cell volume, the regression function for a wave equation model being 1/c2=0·418+2·09×10-4 (PCV)-1·75×10-5 (PCV)2 with a standard error of the estimate=0·0049 (mm/s)-2. Both the attention coefficient and speed of 10 MHz ultrasound were greater in blood than in plasma to a degree dependent on the packed-cell volume. © 1979 IFMBE.

引用

页码：619 / 622

页数：4

共 8 条

[1]

ANGELSEN BAJ, 1975, THESIS U TRONDHEIM T

[2]

AUBERT AE, 1978, BIOSIGMA, V1, P421

[3] DETERMINATION OF THE ACOUSTIC PROPERTIES OF BLOOD AND ITS COMPONENTS [J].