The electrical conductivity of human cerebrospinal fluid at body temperature

被引：364

作者：

Baumann, SB

Wozny, DR

Kelly, SK

Meno, FM

机构：

[1] Department of Neurological Surgery, B-400, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh

[2] Department of Neurological Surgery, University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1997年 / 44卷 / 03期

关键词：

biological tissues; brain modeling; conductivity measurements; temperature;

D O I：

10.1109/10.554770

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The electrical conductivity of human cerebrospinal fluid (CSF) from seven patients was measured at both room temperature (25 degrees C) and body temperature (37 degrees C). Across the frequency range of 10Hz-10 kHz, room temperature conductivity was 1.45 S/m, but body temperature conductivity was 1.79 S/m, approximately 23% higher. Modelers of electrical sources in the human brain have underestimated human CSF conductivity by as much as 44% for nearly two decades, and this should be corrected to increase the accuracy of source localization models.

引用

页码：220 / 223

页数：4

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