摘要
目的:探讨磁共振弥散加权成像(DWI)在脑血管疾病的诊断价值。材料与方法:回顾性观察138例不同脑血管疾病(包括不同时期脑梗死、急性脑出血、海绵状血管瘤)的DWI图像特点,并与同一病变在不同扫描序列图像进行比较,分析弥散成像的信号特征。结果:DWI对超急性脑梗死、急性脑梗死、海绵状血管瘤高度敏感(达100%),对急性脑出血也很敏感。结论:DWI能诊断常规MR序列不能显示的超急性和急性脑梗死,鉴别急性脑梗死与出血。显示常规序列不能显示小的海绵状血管瘤。
Purpose： To investigate the diagnostic value of magnetic resonance diffusion -weighted imaging （DWI） in cerebrovascular diseases. Materials and Methods： DWI images of 138 patients with cerebrovascular disease （including different periods of cerebral infarction, acute cerebral hemorrhage, cavernous hemangioma） were compared with different scan- ning sequence of the same lesions. Diffusion imaging signal（DWI） features were analyzed and then to explore the diagnostic value of DWI. Results： DWI was highly sensitive to hyper acute cerebral infarction, acute cerebral infarction, cavernous he- mangioma （100%） , acute cerebral hemorrhage was also very sensitive. Conclusion： DWI could diagnose superacute and a- cute cerebral infarction when conventional MR sequences could not display. Acute cerebral infarction and hemorrhage could be distinguished. Small cavernous hemangioma could be identified when conventional sequence could not display.
出处
《现代医用影像学》
2013年第3期169-172,共4页
Modern Medical Imageology
关键词
脑血管疾病
磁共振弥散加权成像术
Cerebrovascular disease Magnetic resonance diffusion weighted imaging
