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  • Title: The results of serial dynamic enhanced computed tomography in patients with carotid-cavernous sinus fistulas.
    Author: Ohtsuka K, Hashimoto M.
    Journal: Jpn J Ophthalmol; 1999; 43(6):559-64. PubMed ID: 10672890.
    Abstract:
    PURPOSE: To assess serial dynamic enhanced computed tomography (serial DE-CT) as a diagnostic tool for carotid-cavernous sinus fistula (CCF). METHODS: Serial DE-CT was performed in seven patients (ages 31-74) with CCF. Contrast material was injected intravenously at a dose of 60 mL with an injection speed of 4 mL per second. Serial axial images of the cavernous sinus were undertaken every 3 seconds using a helical computed tomography system. This relatively low-risk technique provides direct evidence of the arteriovenous shunt in the cavernous sinus. RESULTS: In early imaging after the injection, enhancement of the cavernous sinus on the side of the CCF was noted at the arterial phase in all patients, whereas early enhancement of the cavernous sinus was not observed on the contralateral uninvolved side. CONCLUSIONS: These findings suggest the usefulness of serial DE-CT as a diagnostic tool for the initial diagnosis of both high- and low-flow CCFs.
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