Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery.
Objectives: The primary objective of this study was to use high-resolution micro-CT images to create accurate three-dimensional (3D) models of several intratemporal structures, and to compare several surgically important dimensions within the temporal bone. The secondary objective was to create a st...
| Publicado en: | Journal of Otolaryngology -- Head & Neck Surgery Vol. 48; no. 1 |
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| Autores principales: | , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
1/11/2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=134087396&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134087396 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07077270 8B4Q jtl: Journal of Otolaryngology -- Head & Neck Surgery issn: 07077270 maglogo: N pubinfo: dt: 1/11/2019 vid: 48 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 134087396 134087396 134087396 10.1186/s40463-019-0324-0 134087396 ppct: 1 formats: tig: atl: Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery. aug: au: Van Osch, Kylen Allen, Daniel Gare, Bradley Hudson, Thomas J. Ladak, Hanif Agrawal, Sumit K. affil: Schulich School of Medicine & Dentistry, Western University, N6A 5C1, London, Ontario, Canada sug: subj: Cranial Sinuses Anatomy and Histology Temporal Bone Radiography Models, Structural Tomography, X-Ray Computed Methods Cranial Sinuses Surgery Human Dominance, Cerebral Descriptive Statistics Image Processing, Computer Assisted Algorithms Facial Nerve Radiography Ear Canal Radiography ab: Objectives: The primary objective of this study was to use high-resolution micro-CT images to create accurate three-dimensional (3D) models of several intratemporal structures, and to compare several surgically important dimensions within the temporal bone. The secondary objective was to create a statistical shape model (SSM) of a dominant and non-dominant sigmoid sinus (SS) to provide a template for automated segmentation algorithms. Methods: A free image processing software, 3D Slicer, was utilized to create three-dimensional reconstructions of the SS, jugular bulb (JB), facial nerve (FN), and external auditory canal (EAC) from micro-CT scans. The models were used to compare several clinically important dimensions between the dominant and non-dominant SS. Anatomic variability of the SS was also analyzed using SSMs generated using the Statismo software framework. Results: Three-dimensional models from 38 temporal bones were generated and analyzed. Right dominance was observed in 74% of the paired SSs. All distances were significantly shorter on the dominant side (p < 0.05), including: EAC – SS (dominant: 13.7 ± 3.4 mm; non-dominant: 15.3 ± 2.7 mm), FN – SS (dominant: 7.2 ± 1.8 mm; non-dominant: 8.1 ± 2.3 mm), 2nd genu FN – superior tip of JB (dominant: 8.7 ± 2.2 mm; non-dominant: 11.2 ± 2.6 mm), horizontal distance between the superior tip of JB – descending FN (dominant: 9.5 ± 2.3 mm; non-dominant: 13.2 ± 3.5 mm), and horizontal distance between the FN at the stylomastoid foramen – JB (dominant: 5.4 ± 2.2 mm; non-dominant: 7.7 ± 2.1). Analysis of the SSMs indicated that SS morphology is most variable at its junction with the transverse sinus, and least variable at the JB. Conclusions: This is the first known study to investigate the anatomical variation and relationships of the SS using high resolution scans, 3D models and statistical shape analysis. This analysis seeks to guide neurotological surgical approaches and provide a template for automated segmentation and surgical simulation. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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