Three-dimensional FISP imaging in the evaluation of carotid cavernous fistula: comparison with contrast-enhanced CT and spin-echo MR
| Autor: | T, Hirai, Y, Korogi, S, Hamatake, I, Ikushima, T, Sugahara, Y, Sigematsu, Y, Higashida, M, Takahashi |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Carotid Artery Diseases Male Observer Variation Adolescent Contrast Media Middle Aged Image Enhancement Magnetic Resonance Imaging Sensitivity and Specificity Cerebral Angiography Arteriovenous Fistula Image Processing Computer-Assisted Humans Cavernous Sinus Female Comparative Study Tomography X-Ray Computed Carotid Artery Internal Aged |
| Zdroj: | AJNR Am J Neuroradiol |
| ISSN: | 0195-6108 |
| Popis: | PURPOSE: The purpose of this study was to assess the value of three-dimensional fast imaging with steady-state precession (FISP) MR sequences relative to contrast-enhanced CT and spin-echo MR imaging in the diagnosis of carotid cavernous fistula (CCF). METHODS: Seventeen patients with 19 angiographically proved CCFs had contrast-enhanced CT, spin-echo MR imaging, and 3-D FISP imaging. Three observers assessed these imaging studies as well as those of 43 control sides in a blinded manner for the presence or absence of CCF. Receiver operating characteristic analysis was used to assess the diagnostic utility of each imaging technique. In a nonblinded study, contrast-enhanced 3-D FISP images were also evaluated. RESULTS: Higher diagnostic accuracy was obtained with 3-D FISP sequences, as the shunt flow within the cavernous sinus was well seen. Sensitivity of 3-D FISP images was 83% and specificity was 100% in the blinded study. In the receiver operating characteristic analysis, the diagnostic performance of observers was found to be better with the 3-D FISP images than with the spin-echo MR images. Although there were no significant difference between 3-D FISP and contrast-enhanced CT, higher diagnostic performance was obtained with 3-D FISP images. In three CCFs without anterior drainage, a diagnosis was made only from the 3-D FISP images. The contrast-enhanced 3-D FISP images were not helpful, since the cavernous sinuses enhanced. CONCLUSION: Three-dimensional FISP imaging is superior to spin-echo MR imaging and contrast-enhanced CT in the diagnosis of CCF. Contrast-enhanced 3-D FISP images are not helpful for the evaluation of CCF. |
| Databáze: | OpenAIRE |
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