Mastoid surface area-to-volume ratios in adult brazilian individuals

Lima, Marco Antônio Rios; Farage, Luciano; Cury, Maria Cristina Lancia; Júnior, Fayez Bahmad

doi:10.5935/1808-8694.20130080

Cited by 5 publications

(5 citation statements)

References 22 publications

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“…According to Lima et al . 36 , mastoid surface areas and volume follow a linear correlation. This implies that an increased pneumatization denotes an increased surface area, which increases the distances observed between these vessels and ear regions as pneumatization increases.…”

Section: Discussionmentioning

confidence: 85%

Influence of pneumatization on morphology of temporal bone-related vasculatures and their morphometric relationship with ear regions: a computed tomography study

Aladeyelu

Olojede

Lawal

et al. 2023

Sci Rep

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Anatomical variations in the location and position of temporal bone-related vasculature are routinely encountered in clinical practice, contributing to clinical syndromes and complexities in ear-related and neurological surgeries. Pneumatization of the temporal bone (TB) is one of several factors that have been hypothesized to influence the variabilities and variations of these vessels. This study aimed to investigate the association between the degree of pneumatization and the morphologies of some TB-related vessels, as well as their morphometrical relationship with ear regions. Observational retrospective chart review of 496 TBs computed tomographic scans were examined. Different degrees of pneumatization were observed, with hyper-pneumatization being the most common and hypo-pneumatization being the least. Various anatomical variants of the sigmoid sinus (SS), jugular bulb (JB), and internal carotid artery (ICA) were observed. Distances of SS and JB to ear regions were observed to have significant differences (p < 0.05) in laterality. These distances increased relative to increased air cells, showing a significant association (p < 0.05). A significant association (p < 0.001) was also observed between the degree of pneumatization and variants of JB and ICA. High JB, JB dehiscence, and ICA dehiscence were significantly associated with increased pneumatization, while flat JB was significantly associated with decreasing pneumatization. However, no significant association (p = 0.070, p = 0.645) was observed between the degree of pneumatization and morphologies of SS. This study concludes that the degree of pneumatization influences only the jugular bulb variants and ICA dehiscence, as well as the distances of SS and JB to ear regions.

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Section: Discussionmentioning

confidence: 85%

Influence of pneumatization on morphology of temporal bone-related vasculatures and their morphometric relationship with ear regions: a computed tomography study

Aladeyelu

Olojede

Lawal

et al. 2023

Sci Rep

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“…The mastoid air cells also serve as a gas reservoir that compensates for changes in pressure in the middle ear and provides insulation against heat changes. 9 Lima et al 10 stated that the volumetric analysis of mastoid air cells plays a key role in understanding the mastoid physiology and pathogenesis and that computed tomography (CT) is the best way to determine mastoid pneumatization. Due to its low dose of radiation and rapid imaging, CBCT has recently emerged as an alternative to CT to evaluate anatomical structures in the maxillofacial region.…”

Section: Discussionmentioning

confidence: 99%

Comparison of mastoid air cell volume in patients with or without a pneumatized articular tubercle

Adışen

Aydoğdu

2022

Imaging Sci Dent

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Purpose The aim of this study was to compare mastoid air cell volumes in patients with or without a pneumatized articular tubercle (PAT) on cone-beam computed tomography (CBCT) images. Materials and Methods The CBCT images of 224 patients were retrospectively analyzed for the presence of PAT. The Digital Imaging and Communications in Medicine data of 30 patients with PAT and 30 individuals without PAT were transferred to 3D Doctor Software. Mastoid air cell volumes were measured using semi-automatic segmentation on axial sections. Data were analyzed using SPSS version 20.0. Results The patients with PAT and those without PAT had a mean mastoid volume of 6.31±2.86 cm 3 and 3.25±1.99 cm 3 , respectively. There were statistically significant differences in mastoid air cell volumes between patients with and without PAT regardless of sex and mastoid air cell side ( P <0.05). Conclusion The detection of PAT on routine dental radiographic examinations might be a potential prognostic factor that could be used to detect extensive pneumatization in the temporal bone. Clinicians should be aware that there may be widespread pneumatization of mastoid air cells in patients in whom PAT is detected. Advanced imaging should be performed in these cases, and possible complications due to surgical interventions should be considered.

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“…Swarts et al found that the surface area of MACS was a linear function of volume 158 . A cross‐sectional cohort study without history of pediatric COM examined the surface area and volume of MACS based on 3D CT reconstruction of TBs 159 . Gene analysis of the developing ME revealed 5 enriched bone‐related gene sets 160 …”

Section: Mastoidmentioning

confidence: 99%

“…158 A cross-sectional cohort study without history of pediatric COM examined the surface area and volume of MACS based on 3D CT reconstruction of TBs. 159 Gene analysis of the developing ME revealed 5 enriched bone-related gene sets. 160 In anthropologic and cephalometric studies, Saini et al 161 measured and analyzed 8 parameters of the mastoid region and showed significant sexual dimorphism.…”

Section: Mastoid Anatomymentioning

confidence: 99%

Panel 2: Anatomy (Eustachian Tube, Middle Ear, and Mastoid—Anatomy, Physiology, Pathophysiology, and Pathogenesis)

Alper

Luntz

Takahashi

et al. 2017

Otolaryngol.--head neck surg.

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Objective. In this report, we review the recent literature (ie, past 4 years) to identify advances in our understanding of the middle ear-mastoid-eustachian tube system. We use this review to determine whether the short-term goals elaborated in the last report were achieved, and we propose updated goals to guide future otitis media research.Data Sources. PubMed, Web of Science, Medline.Review Methods. The panel topic was subdivided, and each contributor performed a literature search within the given time frame. The keywords searched included middle ear, eustachian tube, and mastoid for their intersection with anatomy, physiology, pathophysiology, and pathology. Preliminary reports from each panel member were consolidated and discussed when the panel met on June 11, 2015. At that meeting, the progress was evaluated and new short-term goals proposed.Conclusions. Progress was made on 13 of the 20 short-term goals proposed in 2011. Significant advances were made in the characterization of middle ear gas exchange pathways, modeling eustachian tube function, and preliminary testing of treatments for eustachian tube dysfunction.Implications for Practice. In the future, imaging technologies should be developed to noninvasively assess middle ear/eustachian tube structure and physiology with respect to their role in otitis media pathogenesis. The new data derived from these structure/function experiments should be integrated into computational models that can then be used to develop specific hypotheses concerning otitis media pathogenesis and persistence. Finally, rigorous studies on medical or surgical treatments for eustachian tube dysfunction should be undertaken.

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Mastoid surface area-to-volume ratios in adult brazilian individuals

Cited by 5 publications

References 22 publications

Influence of pneumatization on morphology of temporal bone-related vasculatures and their morphometric relationship with ear regions: a computed tomography study

Influence of pneumatization on morphology of temporal bone-related vasculatures and their morphometric relationship with ear regions: a computed tomography study

Comparison of mastoid air cell volume in patients with or without a pneumatized articular tubercle

Panel 2: Anatomy (Eustachian Tube, Middle Ear, and Mastoid—Anatomy, Physiology, Pathophysiology, and Pathogenesis)

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