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27.01.2024 | Original Article

Computed-tomography evaluation of parietal foramen topography in adults: a retrospective analysis

verfasst von: Anwar Al-Shuaili, Eiman Al-Ajmi, Sreenivasulu Reddy Mogali, Sara Al-Qasmi, Younis Al-Mufargi, Rajeev Kariyattil, Srinivasa Rao Sirasanagandla

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 3/2024

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Abstract

Background

The parietal foramen (PF) of the skull is a variable anatomic feature with important implications for venous drainage, infection, and injury. Its topography is clinically relevant for neurosurgeons for intracranial navigation and preoperative planning.

Methods

PF topography was investigated in a series of 440 head computed-tomography scans of Omani subjects at Sultan Qaboos University Hospital. The mean age of the patients was 52 ± 17 years and there were 160 males and 280 females. The topography features of the PF, including frequency, diameter, patency, and relative position in relation to the superior sagittal sinus (SSS), were recorded. Additionally, sex and laterality differences in PF parameters were analyzed using a Chi-square test.

Results

The overall prevalence of PF was 72.3% (318/440). The bilateral presence of PF was identified in 34% of skulls. Unilateral right-side prevalence was 18.2%, while left prevalence was 13.2% (p = 0.62). The prevalence of unilateral accessory PF on the right side was 1.8%, while it was 1.1% on the left (p = 0.69). PF within the sagittal suture/or intra-sutural PF was observed in 6.8% of skulls, with a frequency of 9.4% in men and 5.4% in women (p = 0.29). The diameter of the PF was 1.45 ± 0.74 mm on the right side, and 1.54 ± 0.99 mm on the left side (p = 0.96). There were 2% of incomplete PF. The PF was located over the SSS in 70.3% on the right side and 53.8% on the left side. No significant differences were observed between the PF topography parameters and sex or laterality.

Conclusion

The present study for the first time reports the baseline data of PF topography in a large sample of CT scans in the Arab population. The geography and race influence the PF topography differences. PF may be used as a reliable landmark of SSS. The morphological characteristics and distribution of PF reported in this study have clinical implications for imaging diagnosis, intracranial navigation of vascular disorders, and treatment.

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Titel: Computed-tomography evaluation of parietal foramen topography in adults: a retrospective analysis
verfasst von: Anwar Al-Shuaili
Eiman Al-Ajmi
Sreenivasulu Reddy Mogali
Sara Al-Qasmi
Younis Al-Mufargi
Rajeev Kariyattil
Srinivasa Rao Sirasanagandla
Publikationsdatum: 27.01.2024
Verlag: Springer Paris
Erschienen in: Surgical and Radiologic Anatomy / Ausgabe 3/2024
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-023-03284-8

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Computed-tomography evaluation of parietal foramen topography in adults: a retrospective analysis