Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A Correlational Study between Auditory Evoked Potential and Subdural Hematoma for the Diveloprnent of a Noninvasive ICP Monitoring System

비침습적 뇌내압 측정 시스템의 개발을 위한 청각유발전위와 경막혈종간의 상관관계 분석에 관한 연구

  • ;
  • C.S. Lessard (Department of Industrial Engineering. Texas A&M University)
  • 임재중 (인제대학교 보건대학 의용공학과) ;
  • Published : 1995.06.01
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Abstract

Development of a noninvasive intensive care system calls for the use of evoked potentials (EPs) as a means of diagnosing traumatic head-injured patients. The experiment entails surgically placing two subarachnoid bolts and a subdural balloon through the skull to simulate a subdural hematoma. Using various levels of intracranial pressure (ICP) and/or different sizes of balloons, auditory evoked potentials (AEPs) were recorded from a rabbit. Six positive peak latencies ($P_1 - P_6$) and five negative peak latencies ($N_l- N_5$) were extracted from an averaged AEP waveform. Multiple regression analyses were performed for determining. a relationship between the ICP and AEP peak latencies. The results indicate that a major correlation of ch, mges on AEP peak latencies is due to mechanical forces of a mass (inflated balloon simulating a hematoma) in the distortion of the brain matter rather than increased ICP itself.

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