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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 7-10 
    ISSN: 1279-8517
    Keywords: 3D navigation ; Stereotactic endonasal operation ; Paranasal sinus anatomy ; Computer assisted surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Minimal invasive endoscopic operations in the paranasal sinuses rely on the detailed knowledge of the individual anatomy, in particular the relationship of the sinus system to neighbouring delicate and vulnerable anatomical structures. Digital CT and MR images are used for 3D reconstruction of the operating field, providing the basis for most 3D navigation systems, guiding the surgeon in close vicinity to delicate structures and so minimising the risk of iatrogenic trauma. We report the application of the ISG Viewing Wand, a computer-assisted navigation system, in endoscopic endonasal surgery related to the anatomy of the paranasal sinuses.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 7-10 
    ISSN: 1279-8517
    Keywords: 3D navigation ; Stereotactic endonasal operation ; Paranasal sinus anatomy ; Computer assisted surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les interventions menées sous endoscopie sur les sinus paranasaux nécessitent une connaissance détaillée de l'anatomie individuelle, en particulier celle des rapports de ces sinus avec les structures anatomiques environnantes, fragiles et vulnérables. Les images digitalisées issues de tomographies computérisées (TDM) et d'imagerie par résonance magnétique (IRM) sont utilisées pour la reconstruction en trois dimensions (3D) du champ opératoire, fournissant la base de la plupart des systèmes de navigation 3D, pour guider le chirurgien au voisinage immédiate de structures fragiles et minimiser ainsi le risque de lésions iatrogèniques. Nous rapportons l'application du système de navigation assisté par ordinateur ISG Viewing Wand dans la chirurgie endoscopique endonasale, en rapport avec l'anatomie des sinus paranasaux.
    Notes: Summary Minimal invasive endoscopic operations in the paranasal sinuses rely on the detailed knowledge of the individual anatomy, in particular the relationship of the sinus system to neigh-bouring delicate and vulnerable anatomical structures. Digital CT and MR images are used for 3D reconstruction of the operating field, providing the basis for most 3D navigation systems, guiding the surgeon in close vicinity to delicate structures and so minimising the risk of iatrogenic trauma. We report the application of the ISG Viewing Wand, a computer-assisted navigation system, in endoscopic endonasal surgery related to the anatomy of the paranasal sinuses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Intraoperative Navigation ; Computerunterstützte Chirurgie ; Felsenbein ; Modellstudie ; ISG Viewing Wand ; Key words Intraoperative navigation ; Computer-assisted surgery ; Petrous bone ; Anatomic model ; ISG Viewing Wand
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Surgical interventions in the petrous bone have to be performed in close relationship to vital and delicate anatomical structures. In cases of revision surgery or with massive pathological changes 3D computer-assisted navigation provides an essential tool for preoperative planning, definition of target structures and intraoperative orientation. This technology can help to diminish intraoperative risks for the patient and may help to optimize any microsurgery. In this report we present our first experiences in using the ISG Viewing Wand in the petrous bone through a specially designed model. By recording more than 4000 single measurements we found that the ISG Viewing Wand can be used with sufficient precision. We have now outlined the most important conditions necessary for possible application to a patient.
    Notes: Zusammenfassung Chirurgische Eingriffe am Felsenbeim werden in engster Nachbarschaft von vitalen Strukturen durchgeführt. Bei Revisionsoperationen oder bei ausgedehnten pathologischen Veränderungen kann der Chirurg durch den Einsatz computerunterstützter intraoperativer 3D-Navigation zur Orientierung und Definition von Zugangswegen sowie Zielstrukturen, Operationsrisiken entscheidend verringern. Wir zeigen die Möglichkeiten und Grenzen eines Einsatzes der ISG Viewing Wand (ISG Technologies, Mississauga, Ontario, Kanada) für dieses neue Einsatzgebiet anhand von Genauigkeitsmessungen an einem Felsenbeinmodell auf. Die unter möglichst realistischen Bedingungen durchgeführten Messungen am Modell zeigen, daß die ISG Viewing Wand unter bestimmten Voraussetzungen bei Eingriffen am Felsenbein verwendet werden kann, so daß der Operateur eine zuverlässige intraoperative Navigation zur Verfügung hat. Wir präsentieren die Ergebnisse aus über 4000 Einzelmessungen und skizzieren einen möglichen Einsatz am Patienten.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1433-0458
    Keywords: Schlüssselwörter Eismann ; Computerunterstützte Chirurgie ; CAS-Intraoperative Navigation ; Schleimhautbiopsien ; Key words Prehistoric Iceman ; Computer assisted surgery ; Intraoperative navigation ; Mucosal biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The University of Innsbruck possesses a unique prehistoric, completely conserved 5300-year-old human cadaver. We report our experiences during which ENT specialists collected samples from various cavities inside the Iceman. Guidance of biopsy instruments was accomplished with computer-assisted navigation based on Interventional Video Tomography. This technology allows surgical guidance by interlinking currently available imaging modalities with live endoscopic video. The system operates without patient fixation and is practically free of external contact. Apart from sterility, special precautionary measures were necessary to avoid contamination with heavy metals or microorganisms. Visual inspection of the samples of mucosa from the nose, maxillary sinus and larynx revealed the typical patterns of a human cadaver without overt pathology.
    Notes: Zusammenfassung Die Universität Innsbruck bewahrt einen einzigartigen prähistorischen Fund: eine vollständige, erstaunlich gut erhaltene 5300 Jahre alte Gletscherleiche. Wir berichten über die Gewinnung menschlicher archäologischer Gewebeproben unter Verwendung modernster minimal-invasiver computerunterstützter 3D-Navigationstechniken. Neben Erfüllung der üblichen hygienischen Standards mußte in diesem Spezialfall eine Kontamination des Eismannes mit Schwermetallen, Partikeln, oder Teilen von Mikroorganismen vermieden werden. In dem Eingriff wurden Proben aus der Nasenschleimhaut, der Kieferhöhle und dem Larynx gewonnen. Eine klinische Beurteilung durch den Operateur zeigte – trotz ihres Alters – eine typische, gesunde humane Kadaverschleimhaut.
    Type of Medium: Electronic Resource
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