title: Ultrasound guided endoscopic neurosurgery--new surgical instrument and technique.
abstract: For minimal invasive endoscopic neurosurgery, a mini-caliber endoscope equipped with a useful working channel and its guidance system is basically essential. We developed the device for ultrasound guided endoscopic neurosurgery. A minicaliber fiberscope with an outer diameter of 3.4 mm equipped with 2.5 mm of working channel for forceps, suction, and coagulation probe was developed. A 5 MHz phase arrayed 12 mm ultrasound probe was used as guidance system. A fixation device for the mini-caliber fiberscope and ultrasound probe was also constructed. The surgical procedure is very simple, and can be performed through a 2 cm burr hole. Real-time and a directly visualized image might provide more safety and reliability during brain surgery.
authors.affiliation: Department of Neurosurgery, National Medical Center, Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yamakawa
authors.forename: T
authors.initials: T
authors.lastname: Kondo
authors.forename: M
authors.initials: M
authors.lastname: Yoshioka
authors.forename: K
authors.initials: K
authors.lastname: Takakura
mesh_terms: D001927:Brain Diseases / Q000000981:diagnostic imaging / Q000601:surgery; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery; D004453:Echoencephalography / Q000295:instrumentation*; D019723:Endoscopes; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation; D006801:Humans; D008866:Microsurgery / Q000295:instrumentation; D009493:Neurosurgery / Q000295:instrumentation*; D013238:Stereotaxic Techniques / Q000295:instrumentation*