Automated single-trial detection and quantification of evoked potentials, a potential tool for neuromonitoring?

摘要

For the past 40 years, the continuous recording of evoked potentials (EPs) has been used for the intraoperative monitoring of surgical procedures that are at risk of inflicting a lesion to the nervous system. One aim of this on-line neurophysiological monitoring is to warn the surgeon of a possible insult to the nervous system so that the surgical strategy can be adjusted and the risk of a permanent neurological deficit reduced (Guerit, 1998). According to the surgical procedure and related risk, different types of EPs can be used to monitor different neurological functions. For example, the intraoperative recording of somatosensory EPs, often combined with the recording of motor EPs, is used to monitor the appearance of a possible motor and/or somatosensory dysfunction during scoliosis surgery and surgery for spinal cord tumours, as well as intracranial aneurysm surgery, carotid endarterectomy, and thoracoabdominal aortic surgery (Deletis and Sala, 2008; Fehlings et al, 2010; Moritz et ah, 2007; Penchet et al., 2007; Weinzierl et al., 2007).