摘要
目的探讨头部电子计算机断层扫描(CT)和磁共振成像(MRI)对高血压脑病的诊断价值。方法分析10例经临床确诊为高血压脑病患者的头部CT和MRI表现特征,分析其头颅CT表现及MRI中FLAIR、DWI、ADC值变化。结果3例患者头颅CT发现异常,10例患者头颅MRI发现异常,病变主要呈T1稍低、T2稍高信号、FLAIR较高信号,DWI病变呈等及稍高信号,ADC值升高,病变主要以双侧顶枕叶、小脑半球及脑干多见。结论本病的头部影像学改变为血管性水肿所致,常累及双侧顶枕叶、小脑半球等后循环系统皮质下白质,特别是MRI中FLAIR、DWI、ADC等有助于高血压脑病的诊断和鉴别诊断,预后及疗效观察等方面有重要意义。
Objective To incestigate the fetures of cranial CT and MRI in the patients with hypertensive encephalopathy. Methods The CT and MRI findings of ten cases of hypertensive encephalopathy with the charge of CT, MRI appearance of FLAIR （ fluid attenvat- ed inversion - recovery）, DWI （ difussion weighted imaging）, ADC （ apparent diffusion coefficient） were analyzed retrospectively. Results Of ten patients,3 cases had abnormal finding in the cranial CT; 10 cases had abnormal finding in the cranial MRI ,the lesions were dem- onstrated as slightly hypointensity on T1 WI and slightly hyperintensity on T2WI and remarkably hyperintensity on FLAIR, and iso or slightly hyperintensity on DWI,and remarkably hyperintensity on ADC. The lilateral parietal occipital lobes and cerebellar hemisphere and Brain Stem were the more common sites. Conclusions The only characteristric finding of hypertensive encephalopathy in MRI and CT imaging studies is vasogenic edema, especially in the subcortical white matter of the parietal and occipital lobes bilaterally, and cereballar hemi- sphere et al;especially FLAIR,DWI and ADC of MRI can be helpful for diagnosis and diffenential diagnosis,prognosis and curative effect of hypertensive encephalopathy.
出处
《医学研究杂志》
2007年第10期63-65,共3页
Journal of Medical Research
