کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3093692 1190543 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differentiation between intradural and extradural locations of juxta-dural ring aneurysms by using contrast-enhanced 3-dimensional time-of-flight magnetic resonance angiography
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
Differentiation between intradural and extradural locations of juxta-dural ring aneurysms by using contrast-enhanced 3-dimensional time-of-flight magnetic resonance angiography
چکیده انگلیسی

BackgroundJuxta-dural ring aneurysms of the ICA have different clinical outcomes and risks for SAH, which are dependent on their position in the intradural or extradural space. The aim of this study was to reveal the precise location of such aneurysms by using CE-MRA.MethodsContrast-enhanced MRA studies were performed in 21patients with 24 juxta-dural ring aneurysms. The locations were evaluated by source images of CE-MRA and MPR images. We evaluated the accuracy of preoperative MRI findings by comparing imaging results with intraoperative findings in 7 cases.ResultsThe CS was clearly enhanced in the CE-MRA technique, which allowed the precise identification of these aneurysms as intradural or extradural. Intracavernous aneurysms were diagnosed when the greater hyperintensity of the aneurysm was located within the less hyperintense region of the contrast-enhanced CS. Nine of the cases were diagnosed as intradural aneurysms, and 15 aneurysms were noted as extradural based on the findings of CE-MRA. Surgery was performed in 7 cases, which included 4 intradural and 3 extradural aneurysms, and the preoperative MRI findings corresponded with the intraoperative findings in all cases.ConclusionContrast-enhanced MRA and MPR are very useful techniques for determining the location of juxta-dural ring aneurysms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surgical Neurology - Volume 67, Issue 4, April 2007, Pages 381–387
نویسندگان
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