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。
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 （x^2 =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.
出处
《中国医学影像技术》
CSCD
北大核心
2005年第12期1818-1820,共3页
Chinese Journal of Medical Imaging Technology
基金
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)
关键词
磁共振成像
弥散
液体衰减反转恢复
脑梗死
Magnetic resonance imaging
Diffusion
Fluid attenuated inversion recovery
Cerebral infarction
