Evaluation of Dural Arteriovenous Fistulas with 4D Contrast-Enhanced MR Angiography at 3T
| العنوان: | Evaluation of Dural Arteriovenous Fistulas with 4D Contrast-Enhanced MR Angiography at 3T |
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| المؤلفون: | M. Kitajima, Y. Omori, Toshinori Hirai, T. Okuda, Y. Kai, Jun Ichi Kuratsu, Ako Sasao, Kazuo Awai, Shinichiro Nishimura, Motohiro Morioka, Y. Yamashita, R. Murakami, Hirofumi Fukuoka |
| المصدر: | AJNR Am J Neuroradiol |
| بيانات النشر: | American Society of Neuroradiology (ASNR), 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Fistula, Arteriovenous fistula, Magnetic resonance angiography, Dural arteriovenous fistulas, medicine, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Aged, Aged, 80 and over, Central Nervous System Vascular Malformations, Foramen magnum, medicine.diagnostic_test, business.industry, Brain, Arteriovenous malformation, Digital subtraction angiography, Middle Aged, medicine.disease, medicine.anatomical_structure, Cavernous sinus, Female, Neurology (clinical), Radiology, business, Magnetic Resonance Angiography |
| الوصف: | BACKGROUND AND PURPOSE: Four-dimensional contrast-enhanced MR angiography (4D-CE-MRA) at 3T may replace digital subtraction angiography (DSA) for certain diagnostic purposes in patients with intracranial dural arteriovenous fistula (DAVF). The aim of this study was to test the hypothesis that 4D-CE-MRA at 3T enables the same characterization of intracranial DAVFs as DSA. MATERIALS AND METHODS: The study population consisted of 18 consecutive patients with intracranial DAVFs (11 women, 7 men; age range, 35–82 years; mean age, 64.8 years). They underwent 4D-CE-MRA at 3T and DSA. The 4D-CE-MRA series combined randomly segmented central k-space ordering, keyhole imaging, sensitivity encoding, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds with a spatial resolution of 1 × 1 × 1.5 mm. Two independent readers reviewed the 4D-CE-MRA images for main arterial feeders, fistula site, and venous drainage. Interobserver and intermodality agreement was assessed by κ statistics. RESULTS: At DSA, 8 fistulas were located at the transverse sigmoid sinus; 8, at the cavernous sinus; and 2, at the sinus adjacent to the foramen magnum. Interobserver agreement was fair for the main arterial feeders (κ = 0.59), excellent for the fistula site (κ = 0.91), and good for venous drainage (κ = 0.86). Intermodality agreement was moderate for the main arterial feeders (κ = 0.68) and excellent for the fistula site (κ = 1.0) and venous drainage (κ = 1.0). CONCLUSIONS: The agreement between 4D-CE-MRA and DSA findings was good to excellent with respect to the fistula site and venous drainage. |
| تدمد: | 1936-959X 0195-6108 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4b1525096c23a176e1a226ff6172a11Test https://doi.org/10.3174/ajnr.a1898Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....c4b1525096c23a176e1a226ff6172a11 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1936959X 01956108 |
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