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논문 기본 정보

자료유형
학술저널
저자정보
Jin, Seung-Hyun (Department of Neurosurgery, Seoul National University Hospital) Chung, Chun Kee (Department of Neurosurgery, Seoul National University Hospital) Kim, Jeong Eun (Department of Neurosurgery, Seoul National University Hospital) Choi, Young Doo (Department of Neurosurgery, Seoul National University Hospital)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제56권 제6호
발행연도
2014.1
수록면
455 - 462 (8page)

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Objective : To propose a new measure for effective monitoring of intraoperative somatosensory evoked potentials (SEP) and to validate the feasibility of this measure for evoked potentials (EP) and single trials with a retrospective data analysis study. Methods : The proposed new measure (hereafter, a slope-measure) was defined as the relative slope of the amplitude and latency at each EP peak compared to the baseline value, which is sensitive to the change in the amplitude and latency simultaneously. We used the slope-measure for EP and single trials and compared the significant change detection time with that of the conventional peak-to-peak method. When applied to single trials, each single trial signal was processed with optimal filters before using the slope-measure. In this retrospective data analysis, 7 patients who underwent cerebral aneurysm clipping surgery for unruptured aneurysm middle cerebral artery (MCA) bifurcation were included. Results : We found that this simple slope-measure has a detection time that is as early or earlier than that of the conventional method; furthermore, using the slope-measure in optimally filtered single trials provides warning signs earlier than that of the conventional method during MCA clipping surgery. Conclusion : Our results have confirmed the feasibility of the slope-measure for intraoperative SEP monitoring. This is a novel study that provides a useful measure for either EP or single trials in intraoperative SEP monitoring.

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