Analysis of the venous channel within the clivus using multidetector computed tomography digital subtraction venography

研究成果: Article査読

25 被引用数 (Scopus)

抄録

Purpose: Although neuroradiologists and skull base neurosurgeons are aware of the existence of veins within the clivus, such vessels have seldom been described in the literature. The aim of the present study is to elucidate the detailed venous structure of the clivus. Methods: Computed tomography digital subtraction venography (CT-DSV) images of 50 unruptured aneurysm cases were examined retrospectively. Results: Eighteen emissary veins were identified in 14 (28.0%) cases. A half of the emissary veins connected the inferior petrosal sinus with the inferior petro-occipital vein (IPOV) in the middle clivus. The clival diploic vein (CDV) was identified in 14.0% of cases, 42.9% of which had the clivus of the presellar type. The CDV was connected to the posterior intercavernous sinus or the rostral end of the basilar plexus superiorly, and was connected to the IPOV, anterior condylar vein, marginal sinus, or the anterior condylar confluence. Conclusion: The CDV provides collateral channels between the cavernous sinus and the internal jugular vein and the inferior petrosal sinus and the IPOV. Understanding of the emissary veins in the clivus and the CDV is valuable for skull base surgery, especially for endonasal endoscopic skull base procedures.

本文言語English
ページ(範囲)213-219
ページ数7
ジャーナルNeuroradiology
59
3
DOI
出版ステータスPublished - 2017 3月 1

ASJC Scopus subject areas

  • 放射線学、核医学およびイメージング
  • 臨床神経学
  • 循環器および心血管医学

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