Single trial somatosensory evoked potential extraction with ARX filtering for a combined spinal cord intraoperative neuromonitoring technique |
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| Authors: | Lorenzo Rossi Anna Maria Bianchi Anna Merzagora Alberto Gaggiani Sergio Cerutti Francesco Bracchi |
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| Institution: | (1) Department of Human Physiology, University of Milan, Milan, Italy;(2) Department of Biomedical Engineering, Polytechnic of Milan, Milan, Italy;(3) School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA |
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| Abstract: | Background When spinal cord functional integrity is at risk during surgery, intraoperative neuromonitoring is recommended. Tibial Single
Trial Somatosensory Evoked Potentials (SEPs) and H-reflex are here used in a combined neuromonitoring method: both signals
monitor the spinal cord status, though involving different nervous pathways. However, SEPs express a trial-to-trial variability
that is difficult to track because of the intrinsic low signal-to-noise ratio. For this reason single trial techniques are
needed to extract SEPs from the background EEG. |
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