Radiographic imaging of the distal dural ring for determining the intradural or extradural location of aneurysms.

Skull Base : Official Journal of North American Skull Base Society ... [et Al.]
Federica BerettaJeffrey T Keller

Abstract

The effectiveness of several anatomical and radiological landmarks proposed to determine whether an aneurysm is located intradurally or extradurally is still debated. In anatomical and radiological studies, we examined the relationships of the distal dural ring (DDR) to the internal carotid artery (ICA) and surrounding bony structures to aid in the localization of aneurysms near the DDR. Anatomical relationships were examined by performing dissections on 10 specimens (5 formalin-fixed cadaveric heads). After the position of the DDR, optic nerve, and tuberculum sellae were marked with surgical steel wire, radiographs were taken in multiple projections. The only bony landmark consistently visible on radiographs was the planum sphenoidale. The superior border of the DDR is located at or below the level of the tuberculum sellae, which laterally becomes the superomedial aspect of the optic strut; thus, the optic strut marks the dorsal limit of the DDR. On 50 dry skulls, we measured the vertical distance between the planum sphenoidale and medial aspect of the optic strut (5.0 +/- 0.4 mm), the interoptic strut distance (14.4 +/- 1.4 mm), and the linear distance between the most posterior aspect of the planum sphenoidale (limbus spheno...Continue Reading

References

Dec 1, 1979·Journal of Neurosurgery·J N Taptas
Feb 1, 1989·Journal of Neurosurgery·S KobayashiK Sugita
Sep 1, 1988·Journal of Neurosurgery·S L Nutik
Oct 1, 1981·Journal of Neurosurgery·H GiboA L Rhoton
Dec 1, 1993·Neurosurgery·N R al-RodhanT M Sundt
Mar 1, 1996·Neurosurgery·A BouthillierJ T Keller
Jan 1, 1997·Acta neurochirurgica·T HitotsumatsuJ Tateishi
Aug 4, 1998·Journal of Neurosurgery·S OikawaS Kobayashi
Jan 1, 1996·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·K KyoshimaS Kobayashi

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Citations

Mar 29, 2011·Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine·Yoshiyuki WatanabeYukihisa Saida
May 18, 2017·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Christopher S GraffeoMichael J Link
Feb 19, 2017·Acta neurochirurgica·Vasiliki KanellopoulouElizabeth O Johnson
Mar 15, 2020·Clinical Neuroradiology·Etienne LefevreRobert Fahed
Feb 1, 2020·World Neurosurgery·Orhan BegerDerya Ümit Talas

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