| 头颈部闭塞性血管疾病的MRA诊断 |
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| 引用本文： | 杨秀军,钱俨. 头颈部闭塞性血管疾病的MRA诊断[J]. 中国医学影像学杂志, 1996, 4(1): 43-46 |
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| 作者姓名： | 杨秀军 钱俨 |
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| 作者单位： | 湖南医科大学湘雅医院ＭＲ室，湖南省长沙老年病医院内科，湖南泸溪县人民医院神经内科 |
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| 摘 要： | 本文报道了４５例临床证实的头颈部闭塞性血管疾病的ＴＯＦ法ＭＲＡ诊断。结果表明：ＭＲＡ较好地显示了血管狭窄的部位、程度和范围，其中三维法较二维法显示病变为准确；钆增强ＭＲＡ提高了病变显示的精确性，并较可靠地显示了血管硬化斑与管壁溃疡。ＭＲＡ对狭窄处涡流敏感，常致其血流信号丢失而产生假阳性结果或夸大血管狭窄程度与范围。可以认为，ＭＲＡ是中风病因诊断和随访最好的无创性检查方法。本文还对脑动脉粥样硬化的病理进行了探讨
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| 关 键 词： | 脑血管疾病；磁共振血管造影；诊断 |
Occlusive Diseases of the Arteries in the Head and Neck: Diagnosis with MR Angiography |
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| Yang Xiujun,Peng Renluo,Qian Yan,Yang Xiuyoug. Occlusive Diseases of the Arteries in the Head and Neck: Diagnosis with MR Angiography[J]. Chinese Journal of Medical Imaging, 1996, 4(1): 43-46 |
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| Authors: | Yang Xiujun Peng Renluo Qian Yan Yang Xiuyoug |
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| Abstract: | Forty-five patients with occlusive disease of arteries in the head and neck examined by MRI and TOF MRA were reviewed in this paper The results showed that MRA accurately demonstrated the location, region and degree of all the artery stenoses and occlusions, while 3D TOF technique was more accurate than 2D TOF technique in the depiction of artery stenosis MRA also reliably detected the ulceration and plaque formation combining with MRI or after IV Gd-DTPA injection However, MRA maybe overestimated the grade of stenosis due to its sensitivity to complex flow and relatively poor spatial resolution We think MRA is the best noninvasive method to get an etiologic diagnosis and follow-up of stroke We also discussed the pathology of atherosclerosis |
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