title: Interactive image-guided surgery system with high-performance computing capabilities on low-cost workstations: a prototype.
abstract: We present a new frameless stereotatic system prototype that has been initially validated in functional neurosurgery operations and that makes use of an optical position tracker for image-guided neurosurgery. Several devices for tracking different surgical instruments have been designed and manufactured. These devices include an array of infrared light-emitting diodes that are tracked by three charge-coupled device cameras. The system presents several new approaches for surgery planning. For high-quality 3D images of the patient's anatomy, we have developed a parallel version of a volume-rendering algorithm, thus enabling real-time 3D anatomy manipulation on low-cost PC workstations. In order to test the accuracy of the system, the localization of the target by means of a stereotatic frame has been compared with frameless techniques, obtaining a difference of about 1 +/- 1 mm.
authors.affiliation: Division of Neurosurgery, University Clinic Hospital, Valencia, Spain. pedro.roldan@uv.es
authors.forename: P
authors.initials: P
authors.lastname: Roldan
authors.forename: J L
authors.initials: JL
authors.lastname: Barcia-Salorio
authors.forename: F
authors.initials: F
authors.lastname: Talamantes
authors.forename: M
authors.initials: M
authors.lastname: Alcañiz
authors.forename: V
authors.initials: V
authors.lastname: Grau
authors.forename: C
authors.initials: C
authors.lastname: Monserrat
authors.forename: C
authors.initials: C
authors.lastname: Juan
mesh_terms: D000465:Algorithms; D000703:Analog-Digital Conversion; D003199:Computer Systems; D016288:Computer Terminals / Q000191:economics*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D007430:Intraoperative Care / Q000295:instrumentation* / Q000379:methods; D008328:Man-Machine Systems; D008838:Microcomputers; D008953:Models, Anatomic; D019635:Neurosurgical Procedures / Q000379:methods*; D010781:Photography; D013238:Stereotaxic Techniques / Q000295:instrumentation*; D014584:User-Computer Interface