论文部分内容阅读
目的分析瘤样炎性脱髓鞘病(TIDD)影像特点,探讨磁共振(MRI)特别是强化和弥散加权成像(DWI)检查技术对于TIDD的诊断价值。方法对16例TIDD患者行头颅CT和MRI扫描。结果病灶在头颅CT均为低信号,在MRI平扫上呈T1WI低、T2WI高信号,强化像上可见强化,57%可见开环征,发病早期DWI可见高信号,FLAIR较T1WI及T2WI能显示更清晰的病灶及范围。结论使用多种影像技术可以辅助诊断TIDD,并与脑缺血或肿瘤相鉴别,能区分病灶所处时期,因此,影像检查是诊断TIDD的有效辅诊方法之一。
Objective To analyze the features of tumor-like inflammatory demyelinating disease (TIDD) and investigate the diagnostic value of magnetic resonance imaging (MRI), especially enhanced and diffusion weighted imaging (DWI). Methods 16 cases of TIDD patients underwent CT and MRI scans. Results The lesion was low signal in CT scans and showed low T1WI and high signal of T2WI on MRI scan. Intensified enhancement was seen on 57% of the lesions, and high signal was seen on DWI in early onset. FLAIR was higher than T1WI and T2WI Clearer lesions and extent. Conclusion A variety of imaging techniques can be used to diagnose TIDD and differentiate it from cerebral ischemia or tumor and to distinguish the stage of lesion. Therefore, imaging examination is one of the effective methods to diagnose TIDD.