NDLI: Noninvasive early detection of focal cerebral ischemia

Content Provider	IEEE Xplore Digital Library
Author	Ji-Wu Zhang Ji-Ren Liu Chong-Xun Zheng Wei-Zhong Tao Thakor, N.V. An Xie
Copyright Year	1983
Abstract	Describes analyzing somatosensory evoked potentials for detecting cerebral injury in its earlier phases. Cerebral vascular diseases (CVDs) are significant factors in causing morbidity and mortality. Early diagnosis is the key to rapid recovery and improve prognosis. Most CVDs are associated with brain ischemia/hypoxia, making ischemic cerebral vascular disease a major concern. A noninvasive technique for early detection of focal brain ischemic injury is a major need. Here the authors discuss a technique to help meet this need. They present a model of SD rat focal cerebral ischemia. A new high-resolution time-frequency analysis method-the discrete Cabor spectrogram-is introduced to analyze somatosensory evoked potential signals for early noninvasive detection of brain focal ischemic injury. The time-varying spectrum of the SEP is displayed as a contour map on the two-dimensional time-frequency plane. The difference between ischemic and normal regions can be clearly seen on this map, which may be useful for diagnostic purposes.
Page Count	8
File Size	229444
Starting Page	74
Ending Page	81
File Format	PDF
ISSN	07395175
Volume Number	19
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ischemic pain Injuries Signal analysis Diseases Time frequency analysis Magnetic resonance imaging Blood flow Cranium Electrodes Phase detection
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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