title: An accurate and ergonomic method of registration for image-guided neurosurgery.
abstract: We have developed a system for accurately and conveniently achieving surgical registration for image-guided neurosurgery, based on alignment and matching of patient forehead contours. The system consists of a contour digitizer that is used in the operating room to acquire patient contours, editing software for extracting contours from patient image data sets, and a contour-match algorithm for aligning the two contours and performing data set registration. Initial tests of the individual portions of the system have found each to be robust; we are in the process of refining the design of the optical digitizer in order to further automate the procedure as well as provide increased accuracy.
authors.affiliation: Division of Neurosurgery, St. Louis University Medical Center, MO 63110.
authors.forename: J M
authors.initials: JM
authors.lastname: Henderson
authors.forename: K R
authors.initials: KR
authors.lastname: Smith
authors.forename: R D
authors.initials: RD
authors.lastname: Bucholz
mesh_terms: D000465:Algorithms; D001921:Brain / Q000033:anatomy & histology / Q000601:surgery; D003199:Computer Systems; D003952:Diagnostic Imaging / Q000295:instrumentation; D004582:Electronics, Medical / Q000295:instrumentation; D005546:Forehead / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D008279:Magnetic Resonance Imaging; D008961:Models, Structural; D009493:Neurosurgery / Q000295:instrumentation; D015642:Radiology, Interventional / Q000295:instrumentation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D012984:Software; D013238:Stereotaxic Techniques / Q000295:instrumentation; D013813:Therapy, Computer-Assisted / Q000295:instrumentation; D014057:Tomography, X-Ray Computed