AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Aug 2002
Case ReportsSuperior petrosal sinus catheterization for transvenous embolization of a dural carotid cavernous sinus fistula.
We report the endovascular treatment of a dural carotid cavernous fistula in a 67-year-old woman in whom superior petrosal sinus catheterization was performed to access the venous site of the fistula. To our knowledge, this retrograde venous route via the superior petrosal sinus has not been previously described.
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AJNR Am J Neuroradiol · Aug 2002
Case ReportsTransvenous embolization of a direct carotid cavernous fistula through the pterygoid plexus.
Closure of a direct carotid cavernous fistula with detachable coils by transpterygoid venous approach to the cavernous sinus is an alternative technique that may be applied in cases in which other techniques offer increased risk or in which other techniques have failed. In this case report, we present the details of the management of a direct carotid cavernous fistula by this method.
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AJNR Am J Neuroradiol · Aug 2002
Comparative StudyVascular hydraulics associated with idiopathic and secondary intracranial hypertension.
The radiologic diagnosis of idiopathic intracranial hypertension (IIH) is one of exclusion, with no reproducible positive features described in the imaging literature. Because MR venography is prone to flow artifacts, diagnosis of secondary intracranial hypertension (SIH) can also be problematic. Vascular hydraulics can be useful for diagnosis of these conditions when measured by invasive or sonographic means. The purpose of this study was to measure vascular flow and pulsatility characteristics with a noninvasive MR imaging method. ⋯ Reduced venous sinus pulsatility is a marker of intracranial hypertension secondary to raised venous sinus pressure. When suspicion of IIH or SIH exists and the MR venogram is difficult to interpret, raised total blood flow indicates IIH, whereas reduced SSS flow indicates SIH.