Noninvasive detecting the focal cerebral ischemia

Zhang Jiwu, Zheng Chongxun, Tao Weizhong, Xie An, Hao Lei, Nitish V Thakor

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The study shows that the time-frequency distribution of Somatosensory Evoked Potential (SEP) is very sensitive to the cerebral ischemia. SD rats are used for animal experiment, a model for SD rat focal ischemic cerebral injury is presented. Then based on the Discrete Gabor Spectrogram (DGS), SEP signal from the animal experiment is analyzed. Center of power (COP) and weight center of power (WCOP) is defined. The study proves that the time-frequency feature of SEP signals on ischemic region is obviously different from normal region, can be clearly distinguished by analyzing their SEP signals in time-frequency domain. The injury extent can also be detected by analyzing their time-frequency feature. Our study may result in a quantitative method to detect focal ischemic cerebral injury in the earlier phases.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherIEEE
Pages1328-1331
Number of pages4
Volume3
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, USA
Duration: Oct 30 1997Nov 2 1997

Other

OtherProceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityChicago, IL, USA
Period10/30/9711/2/97

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ASJC Scopus subject areas

  • Bioengineering

Cite this

Jiwu, Z., Chongxun, Z., Weizhong, T., An, X., Lei, H., & Thakor, N. V. (1997). Noninvasive detecting the focal cerebral ischemia. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 3, pp. 1328-1331). IEEE.