Comparative morphometric study of the sigmoid sinus sulcus and the jugular foramen

Ramos-Junior, Silvio Pereira; Gusmão, Sebastião Natanael da Silva; Raso, Jair Leopoldo; Nicolato, Arthur; Santos, M. de Souza; Caetano, Isabela Maciel

doi:10.1590/0004-282x20140117

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…Seventy-four percent of the paired specimens revealed SS dominance on the right side. These results coincide with findings in the literature that the SS is frequently larger on the right side [19, 21, 22, 24]. The specific distances analyzed in this study were chosen based on those most applicable to neurotologic surgical approaches.…”

Section: Discussionsupporting

confidence: 87%

Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery

Osch

Allen

Gare

et al. 2019

J of Otolaryngol - Head & Neck Surg

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ObjectivesThe 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.MethodsA 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.ResultsThree-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.ConclusionsThis 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.

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Section: Discussionsupporting

confidence: 87%

Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery

Osch

Allen

Gare

et al. 2019

J of Otolaryngol - Head & Neck Surg

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The Sigmoid Sinus

Aly¹,

Tubbs²

2020

Anatomy, Imaging and Surgery of the Intracranial Dural Venous Sinuses

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The Anatomy of the Sigmoid-Transverse Junction According to the Tentorial Angle

Vatansever

Mut²,

Ergun³

et al. 2019

Journal of Craniofacial Surgery

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Dural sinuses have critical importance during intracranial approaches. Detailed anatomical knowledge of the dural sinuses is crucial for surgeons to reduce unexpected venous bleeding. The aim of this study was to investigate anatomical relation of sigmoid sinus and tentorium cerebelli according to clinically palpable landmarks and cranial morphometry. The authors evaluated 222 individuals’ (94 women, 128 men) 3-dimensional computed tomography angiograms, retrospectively. The authors also studied on 12 mid-sagittal cut dried hemiskulls and 8 formalin fixed cadaver heads hemisected midsagitally. All measurements were completed using Osirix-Lite version 9 software. Craniometrical values were measured to define cranium morphology. Furthermore, level of the sigmoid sinus according to asterion and tentorial angle were evaluated in detail. Our results demonstrated that there were significant differences between parameters and genders, except vertical angle of the tentorium cerebelli. Distance between asterion and sigmoid sinus was statistically different between right and left sides in favor of the left side. This also varied depending on the position of the sigmoid sinus, as well. Only transverse angle between the upper point of external acoustic meatus and asterion demonstrated a significant correlation with age. This study evaluated the detailed 3D anatomy of sigmoid sinus and tentorium cerebelli related with the cranium morphology. Determining to sigmoid sinus anatomy according to clinically palpable landmarks has advantages for setting surgical protocols and reducing to unexpected injuries while surgery to these structures.

show abstract

Comparative morphometric study of the sigmoid sinus sulcus and the jugular foramen

Cited by 3 publications

References 11 publications

Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery

Morphological analysis of sigmoid sinus anatomy: clinical applications to neurotological surgery

The Sigmoid Sinus

The Anatomy of the Sigmoid-Transverse Junction According to the Tentorial Angle

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