Baumann S B, Wozny D R, Kelly S K, Meno F M
Department of Neurological Surgery, University of Pittsburgh Medical Center, University of Pittsburgh, PA 15213, USA.
IEEE Trans Biomed Eng. 1997 Mar;44(3):220-3. doi: 10.1109/10.554770.
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 10 Hz-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.
对7名患者的人体脑脊液(CSF)在室温(25摄氏度)和体温(37摄氏度)下的电导率进行了测量。在10赫兹至10千赫的频率范围内,室温下的电导率为1.45 S/m,但体温下的电导率为1.79 S/m,约高23%。近二十年来,人脑电源建模者对人体脑脊液电导率的低估高达44%,应予以纠正,以提高源定位模型的准确性。