Development and clinical application of intraoperative mchitoring method for the visael function

Research Project

Project/Area Number	14571324
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Cerebral neurosurgery
Research Institution	Fukushima Medical University
Principal Investigator	SASAKI Tatsuya Nearosurgery, Res. Inst. for Sci. and Tech, Associate professor, 医学部, 助教授 (00153990)
Project Period (FY)	2002 – 2003
Project Status	Completed (Fiscal Year 2003)
Budget Amount *help	¥3,400,000 (Direct Cost: ¥3,400,000) Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000) Fiscal Year 2002: ¥2,700,000 (Direct Cost: ¥2,700,000)
Keywords	Intraoperative monitoring / visual evoked potential / optic nerve evoked potential
Research Abstract	We developed a new stimulator for intraoperative visual evoked potentials (VEPs). The new stimulator was consisted 10 light emitting diodes, which has 40 times luminescence than the old one. Also its basic plate was made of silicon to be soft enough. By using new stimulating diodes, stable VEP could be recorded even if the scalp was reflected. At present, influence of anesthetic agent is evaluated. Concerning to optic nerve evoked potentials (ONEPs) elicited by electrical stimulation of the optic nerve, we confirmed to be able to record stable waveforms in animal experiments. After cutting the optic nerve, the waveform was disappeared. At present, we are trying to develop new stimulating electrodes to stimulate the optic nerve safely.