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Measurement of electrical current density distribution within the tissues of the head by magnetic resonance imaging.

作者信息

Gamba H R, Delpy D T

机构信息

Department of Medical Physics & Bioengineering, University College of London, England, UK.

出版信息

Med Biol Eng Comput. 1998 Mar;36(2):165-70. doi: 10.1007/BF02510738.

DOI:10.1007/BF02510738
PMID:9684455
Abstract

Images of the electrical current distribution in an intact piglet head, measured by MRI, are presented for the first time. Remarkable differences in the distribution of the electrical current between live and post mortem studies are found. After death, there is a decrease of 62% in the current reaching the brain, compared with the situation in the living animal. This reduction is associated with the increase in the brain impedance after death, which agrees with previous in vivo studies.

摘要

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本文引用的文献

1
Measurement of nonuniform current density by magnetic resonance.磁共振测量非均匀电流密度。
IEEE Trans Med Imaging. 1991;10(3):362-74. doi: 10.1109/42.97586.
2
Cerebral impedance changes after circulatory arrest.循环骤停后脑阻抗变化。
Am J Physiol. 1956 Sep;187(1):180-92. doi: 10.1152/ajplegacy.1956.187.1.180.
3
Blood volume and hematocrit in various organs in newborn piglets.
Pediatr Res. 1980 Dec;14(12):1324-7. doi: 10.1203/00006450-198012000-00010.
Med Biol Eng Comput. 2017 Feb;55(2):225-233. doi: 10.1007/s11517-016-1497-6. Epub 2016 Apr 23.
4
The specific resistance of biological material--a compendium of data for the biomedical engineer and physiologist.生物材料的电阻率——生物医学工程师和生理学家的数据汇编。
Med Biol Eng. 1967 May;5(3):271-93. doi: 10.1007/BF02474537.
5
Specific resistivity of the cerebral cortex and white matter.大脑皮质和白质的比电阻率
Exp Neurol. 1968 Apr;20(4):544-57. doi: 10.1016/0014-4886(68)90108-8.
6
Regional cerebral blood volume and hematocrit measured in normal human volunteers by single-photon emission computed tomography.
J Cereb Blood Flow Metab. 1985 Jun;5(2):207-13. doi: 10.1038/jcbfm.1985.27.
7
In vivo detection of applied electric currents by magnetic resonance imaging.
Magn Reson Imaging. 1989 Jan-Feb;7(1):89-94. doi: 10.1016/0730-725x(89)90328-7.
8
Reference values for resting blood flow to organs of man.人体各器官静息血流量的参考值。
Clin Phys Physiol Meas. 1989 Aug;10(3):187-217. doi: 10.1088/0143-0815/10/3/001.
9
In vivo reflectance of blood and tissue as a function of light wavelength.血液和组织的体内反射率与光波长的函数关系。
IEEE Trans Biomed Eng. 1990 Jun;37(6):632-9. doi: 10.1109/10.55667.
10
Electrical impedance tomography with cortical or scalp electrodes during global cerebral ischaemia in the anaesthetised rat.麻醉大鼠全脑缺血期间使用皮质或头皮电极的电阻抗断层成像
Clin Phys Physiol Meas. 1992 Feb;13(1):87-98. doi: 10.1088/0143-0815/13/1/008.