Neuroradiology

, Volume 38, Issue 7, pp 663–668 | Cite as

Three-dimensional computed display of otosurgical operation sites by spiral CT

  • O. Schubert
  • K. Sartor
  • M. Forsting
  • C. Reisser
HEADANDNECKRADIOLOGY

Abstract

We studied the usefulness of spiral CT for preoperative information on the individual anatomy of the temporal bone in a computed three-dimensional (3D) display. In 87 patients with various otological diseases, 3D reconstructions were performed based on spiral high-resolution CT (HR-CT) by volume-rendering on an independent workstation. The positions of the ossicles, facial nerve, labyrinth and vestibular aqueduct relative to reference points were comprehensively demonstrated by thresholding or interactive segmentation. Spiral CT enables 3D display of otosurgical operation sites in a shorter scan time than conventional CT. 3D reconstructions improve the surgeon's understanding of individual anatomy and thus help in surgical planning. This is particularly important for surgery of temporal bone tumours, middle ear deformities, cochlear implants and saccotomy.

Key words Temporal bone Spiral (helical) computed tomography Three-dimensional reconstruction Otological surgery 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • O. Schubert
    • 1
  • K. Sartor
    • 2
  • M. Forsting
    • 2
  • C. Reisser
    • 1
  1. 1.Department of Otorhinolaryngology, University of Heidelberg Medical School, Heidelberg, GermanyDE
  2. 2.Department of Neuroradiology, University of Heidelberg Medical School, Im Neuenheimer Feld 400, D-69120 Heidelberg, GermanyDE

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