title: [Microsurgical removal of deep vascular malformations using sonar-stereometry].
abstract: The advantages of a new, dynamic sonar technology in open stereotactic microsurgery are demonstrated by means of three surgical procedures for deep-seated vascular malformations that are not easy of access. With this method, targets can be aimed at without using rigid, obstructive pointing devices as in conventional stereotaxy. On the contrary, it is possible to take advantage of preformed anatomical spaces reaching the lesion most carefully by means of light-weight, free-hand on-target instruments. The spatial information, correlated with a CT data set, is displayed in real time with an accuracy of +/- 1 mm. Additional image data from MR and digital angiography can be used interactively.
authors.affiliation: Neurochirurgische Universitätsklinik, Kantonsspital, Basel.
authors.forename: H F
authors.initials: HF
authors.lastname: Reinhardt
authors.forename: G A
authors.initials: GA
authors.lastname: Horstmann
authors.forename: O
authors.initials: O
authors.lastname: Gratzl
mesh_terms: D000328:Adult; D000368:Aged; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000601:surgery; D002551:Cerebral Ventricle Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D003399:Craniotomy / Q000295:instrumentation; D004453:Echoencephalography / Q000295:instrumentation*; D005103:Expert Systems / Q000295:instrumentation; D005260:Female; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000295:instrumentation; D008297:Male; D008866:Microsurgery / Q000295:instrumentation*; D008875:Middle Aged; D013238:Stereotaxic Techniques / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation
vernacular_title: Mikrochirurgische Entfernung tiefliegender Gefässmissbildungen mit Hilfe der Sonar-Stereometrie.