SPATIAL-RESOLUTION OF 4 ELECTRODE ARRAY

被引:27
作者
ROBILLARD, PN [1 ]
POUSSART, D [1 ]
机构
[1] UNIV LAVAL,DEPT BIOL,QUEBEC CITY G1K 7P4,QUEBEC,CANADA
关键词
D O I
10.1109/TBME.1979.326572
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The in vivo measurement of specific impedance in brain tissue involves several technical aspects. The most stringent difficulties relate to electrode polarization and spatial resolution of the measuring system. The polarization is solved by using a four electrode arrangement with a very high impedance preamplifier on the potential electrodes. This paper discusses the relative effectiveness of the various possible linear configurations of four electrodes in terms of spatial resolution. The accuracy of computed spatial resolution with respect to corresponding experimental ones is specified. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.
引用
收藏
页码:465 / 470
页数:6
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