Localization of Cortical Oscillations Induced by SCS Using Coherence
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Date
2007-12
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Referee
Mark
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Společnost pro radioelektronické inženýrství
Abstract
This paper suggests a method based on coherence analysis and scalp mapping of coherence suitable for more accurate localization of cortical oscillations induced by electric stimulation of the dorsal spinal cord (SCS), which were previously detected using spectral analysis. While power spectral density shows the increase of power during SCS only at small number of electrodes, coherence extends this area and sharpens its boundary simultaneously. Parameters of the method were experimentally optimized to maximize its reliability. SCS is applied to suppress chronic, intractable pain by patients, whom pharmacotherapy does not relieve. In our study, the pain developed in lower back and lower extremity as the result of unsuccessful vertebral discotomy, which is called failed-back surgery syndrome (FBSS). Our method replicated the results of previous analysis using PSD and extended them with more accurate localization of the area influenced by SCS.
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Citation
Radioengineering. 2007, vol. 16, č. 4, s. 46-50. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2007/07_04_046_050.pdf
http://www.radioeng.cz/fulltexts/2007/07_04_046_050.pdf
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Peer-reviewed
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en