| 林志超,王秀河,黄力,陈汉芳,吴何嘉,曹宗伟.对比分析DW-FLAIR和FLAIR成像技术在脑梗死病变中的应用[J].中国医学影像技术,2005,21(12):1818~1820 |
| 对比分析DW-FLAIR和FLAIR成像技术在脑梗死病变中的应用 |
| Comparison of MR DW-FLAIR and FLAIR techniques in cerebral infarction |
| 投稿时间：2005-05-08 修订日期：2005-07-25 |
| DOI： |
| 中文关键词: 磁共振成像 弥散 液体衰减反转恢复 脑梗死 |
| 英文关键词:Magnetic resonance imaging Diffusion Fluid attenuated inversion recovery Cerebral infarction |
| 基金项目:本课题获广东省卫生厅医学科研基金立项(A2002355);广东省自然科学基金立项(010365)。 |
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| 中文摘要: |
| 目的 探讨DW-FLAIR和FLAIR成像技术在脑梗死病变中的应用价值。方法 60例脑梗死患者全部行轴位SE-T1、FSE-T2、FLAIR及DW-FLAIR扫描。60例脑梗死患者共检出82个梗死灶,比较分析DW-FLAIR和FLAIR对脑梗死灶显示的图像质量。结果 梗死灶显示方面:不清楚在FLAIR有34个而DW-FLAIR有16个(卡方检验χ2=5.986,P=0.014);60例脑梗死DW-FLAIR的对比噪声比(CNR)绝对值均高于FLAIR(经配对样本t检验:t=-3.26,P=0.008)。结论 DW-FLAIR具有成像时间短的优势,它在脑梗死灶位于颅顶时的应用优于FLAIR技术,但梗死灶位于颅底时显示逊色于FLAIR技术。 |
| 英文摘要: |
| Objective To explore the role of MR DW-FLAIR and FLAIR techniques in the diagnosis of cerebral infarction. Methods All sixty patients with cerebral infarction were examined by SE-T1, FSE-T2, FLAIR and DW-FLAIR scanning. Eighty-two cerebral infraction lesions were found in all 60 patients. The values in diagnosing cerebral infarction lesions between FLAIR and DW-FLAIR were compared. Results In detected cerebral infraction lesions: 34 lesions were unclear in the FLAIR and 16 in the DW-FLAIR (χ2=5.986, P=0.014). The CNR of all the 60 patients in the DW-FLAIR was much higher than that of FLAIR. (t=-3.26, P=0.008). Conclusion The imaging time of DW-FLAIR was shorter than that of FLAIR. When the lesion locates at the peak of the skull DW-FLAIR is better than FLAIR but not as good as FLAIR when the lesion locates at the base of the skull. |
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