[Multiplanar imaging of the temporal bone. Initial results].
In the head and neck area CT imaging (particularly the HR-technique) is a well-established diagnostic procedure. Besides other locations it has been successfully used in the preoperative evaluation of the temporal bone. Nevertheless, the sophisticated anatomy of this special area is hard to interpret in certain cases. In the present study we report on our preliminary results in producing a multiplanar reconstruction of the area mentioned above. Temporal bones were used that had been excised during autopsy. The specimen were examined under a CT imager of the 3rd generation with a high-resolution mode. Sections of 1 mm thickness were obtained. For the evaluation a surface model was used; the segmentation was carried out mainly automatically. The surface was calculated using a triangulation algorithm. The obtained data enabled us to receive three-dimensional aspects of the temporal bone; these reconstructions could be examined from any desired perspective. Our results indicate that the multiplanar reconstruction might be of great importance for the diagnostic evaluation of temporal bone diseases in the future. In the meantime several technical problems have to be solved to guarantee a sufficient quality of the reconstructed specimen.
HNO-Klinik und Poliklinik der Universität München.
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G
Grevers
A
A
Wittmann
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T
Vogl
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R
Wiechell
D003198:Computer Simulation; D004423:Ear / Q000000981:diagnostic imaging*; D004432:Ear, Middle / Q000000981:diagnostic imaging; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008953:Models, Anatomic; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D012984:Software; D013701:Temporal Bone / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*
Untersuchungen zur multiplanaren Darstellung des Felsenbeins. Erste Ergebnisse.