| 增强液体衰减反转恢复序列在脑膜瘤诊断中的应用价值 |
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| 引用本文： | 钱银锋,张诚,宫希军,余长亮,余永强.增强液体衰减反转恢复序列在脑膜瘤诊断中的应用价值[J].临床放射学杂志,2008,27(12):1625-1628. |
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| 作者姓名： | 钱银锋 张诚 宫希军 余长亮 余永强 |
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| 作者单位： | 安徽医科大学第一附属医院放射科,合肥,230022 |
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| 摘 要： | 目的 探讨增强液体衰减反转恢复(FLAIR)序列在诊断脑膜瘤中的价值. 资料与方法 38例脑膜瘤患者行增强T1WI和FLAIR成像,比较两种序列增强图像上脑膜瘤的强化方式、"脑膜尾征"的显示、肿瘤强化程度、肿瘤与白质及肿瘤与灰质的对比率(CR)和对比噪声比(CNR). 结果 38例中25例(65.8%)在增强FLAIR上呈环状强化,而增强T1WI上仅7例(18.4%)呈环状强化."脑膜尾征"在增强FLAIR和增强T1WI上的显示率分别为36.8%和47.4%.肿瘤在增强FLAIR和增强T1WI上强化程度分别为57.0和301.3,两者间差异有统计学意义(P＜0.001).增强FLAIR和增强T1WI上肿瘤与灰质CR分别为0.9和1.5,两种序列上肿瘤与白质的CNR分别为50.6和72.6,肿瘤与灰质CNR则为44.3和80.1,两种序列间差异均有统计学意义(P＜0.001).肿瘤与白质CR在两种序列间无差异. 结论 增强FLAIR有助于脑膜瘤包膜的显示和判断,但在显示肿瘤本身及"脑膜尾征"上不及增强T1WI.
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| 关 键 词： | 脑膜瘤 液体衰减反转恢复 增强 磁共振成像 |
Application of Contrast-enhanced Fluid-attenuated Inversion-recovery MR Imaging in Diagnosing Intracranial Meningioma |
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| QIAN Yinfeng,ZHANG Cheng,GONG Xijun,et al..Application of Contrast-enhanced Fluid-attenuated Inversion-recovery MR Imaging in Diagnosing Intracranial Meningioma[J].Journal of Clinical Radiology,2008,27(12):1625-1628. |
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| Authors: | QIAN Yinfeng ZHANG Cheng GONG Xijun |
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| Institution: | QIAN Yinfeng,ZHANG Cheng,GONG Xijun,et al.Department of Radiology,First Affiliated Hospital of Anhui Medical University,Hefei,Anhui Province 230022,P.R.China |
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| Abstract: | Objective To evaluate the clinical value of contrast-enhanced FLAIR imaging of meningioma comparing with contrast-enhanced T1WI. Materials and Methods 38 patients with meningioma underwent FLAIR and spin-echo T1WI with and without intravenous gadopentetate dimeglumine.Enhanced FLAIR images were compared with enhanced T1WI images to evaluate the enhancement pattern and degree, display dural tail sign, and to measure the contrast ratio (CR) and contrast-to-noise ratio (CNR) of tumor/white matter and tumor/gra... |
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| Keywords: | Meningioma Fluid-attenuated inversion-recovery Contrast enhancement Magnetic resonance imaging |
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