Three-dimensional reconstruction of the temporal bone: Comparison of in situ, CT, and CBCT measurements

European Annals of Otorhinolaryngology, Head and Neck Diseases
E GuyaderR Marianowski

Abstract

To evaluate the accuracy of three-dimensional (3D) Cone Beam Computed Tomography (CBCT) and Computed Tomography (CT) reconstructions of human temporal bones compared with in situ measurements. Experimental anatomical study of 10 human temporal bones. Wilcoxon's test was used to compare 8 distances on each temporal bone measured in situ and then on 3D CT and CBCT reconstructions. Six landmarks were used: external auditory canal (EAC), tip of the mastoid process, tip of the occiput, zygoma, a point situated 1cm above the tip of the mastoid process (T0) (open technique: lower limit of the mastoidectomy), head of stapes. No significant difference was observed between the 3 measuring techniques for any of the distances studied (P>0.05). This study demonstrates the equivalence of CBCT and CT for temporal bone measurements. CBCT is a new imaging modality providing 3D reconstructions of the temporal bone that are as reliable as those obtained by CT. As a result of better spatial resolution compared to CT, CBCT is associated with a significantly lower radiation dose. This technique constitutes a morphological progress, as CBCT is comparable to CT, allowing investigation of pathological ears with a lower radiation dose.

Citations

Jan 4, 2020·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Gerd Fabian VolkOrlando Guntinas-Lichius
Mar 17, 2020·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Payal MukherjeeMichael Solomon
Jun 10, 2020·Head & Face Medicine·K KronsederD Dirksen
Jan 15, 2021·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Payal MukherjeeGordon Wallace
Jun 1, 2021·European Journal of Radiology·Ruowei TangZhenchang Wang
Nov 30, 2021·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Kaninut PhienwejPatiyut Sriwilas

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