Zusammenfassung
Bildgebende Verfahren sind im HNO-Arbeitsalltag tägliches Werkzeug. Cochlear-Implant-Patienten
stellen dabei eine besondere Patientenpopulation dar. Im Rahmen von Voruntersuchungen,
Operationen und Kontrollen des klinischen Verlaufs stehen verschiedene bildgebende
Verfahren mit unterschiedlichen Indikationen und Konsequenzen zur Verfügung. Während
hochauflösende Computertomografie und Kernspintomgrafie ihre Domäne in der Voruntersuchung
haben, werden zunehmend neue Verfahren, wie die digitale Volumentomografie intra-
und postoperativ eingesetzt. Insbesondere die Insertionskontrolle bei Implantation
von Innenohrfehlbildungen, auch unter Verwendung der assistierten Navigation, kann
als Standard der Cochlear Implant Versorgung gelten. Gleichzeitig kann die digitale
Volumentomografie als Instrument der Qualitätskontrolle eingesetzt werden, wobei die
Position der eingesetzten Elektrode innerhalb der Cochlea im Fokus steht. Weitere
Anwendungsbereiche der verschiedenen Untersuchungsverfahren, ihre Indikation und aktuelle
Ergebnisse werden dargestellt.
Abstract
Imaging in Cochlear Implant Patients
Imaging procedures are a mainstream tool in the daily ENT workflow. Cochlear Implant
patients are representing a special population with specific demands for imaging.
There are different imaging techniques available for pre-operative evaluation, surgery
and postoperative controls with different indications and consequences. High-resolution
computed tomography and magnetic resonance imaging are mainly used in the evaluation
process. New procedures, as digital volume tomography, are increasingly used intra-
and postoperatively. Especially the intracochlear positioning in malformations of
the inner ear, eventually added with radiological assisted navigation, can be considered
a standard of modern cochlear implant surgery. In addition, digital volume tomography
may serve as a quality control tool focusing on the evaluation of the intracochlear
electrode position. The range of applications, indications and current results are
illustrated.
Schlüsselwörter
Cochlear Implant - Computertomografie - Kernspintomografie - digitale Volumentomografie
- Innenohrfehlbildung - Navigation
Key words
cochlear implant - computed tomografie - magnetic resonance imaging - digital volume
tomografie - malformation - navigation
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Korrespondenzadresse
Prof. Dr. Antje Aschendorff
HNO-Klinik und Implant
Centrum Freiburg
Universität Freiburg
Killianstraße 5
79106 Freiburg
Email: antje.aschendorff@uniklinik-freiburg.de
