磁共振扩散成像在急性缺血性脑血管疾病的诊断价值研究

目的探讨磁共振扩散成像在急性脑缺血性疾病中的价值。方法回顾性对比分析急性缺血性脑血管病患者的磁共振图像；根据发病时间将急性期脑缺血患者（发病时间在0～24h以内）以3h为标准间隔共分为四组，比较总结各组影像图像特点。结果发病0～12h以内的一、二、三组患者病变DWI均呈高信号，ADC呈低信号改变，与常规序列信号出现率之间差异有统计学意义（P〈0．05），发病12～24h组患者DWI序列与常规序列信号差异无统计学意义。结论磁共振扩散成像对于发现病变、确定病变部位、病变大小具有较高的价值，可为临床早期治疗提供可靠的诊断依据。

Diffusion-weighted MR Imaging in the Diagnosis of Acute Ischemic Cerebral Vascular Disease Research

Objective Discussion on application of Mr diffusion weighted Imaging in acute cerebral ischemic diseases value.Methods Retrospective contrast analysis of magnetic resonance imaging in patients with acute ischemic cerebrovascular disease;according to the time of onset of acute cerebral ischemia patients(onset within 0~24 h) for 3 h as the standard interval is divided into four groups,summarizing the various sets of image features.Results 0~12 h of onset within one,two or three groups of patients with lesions of DWI is a high signal,ADC is a low signal changes,with a regular sequence of difference statistically between the signal frequency(P<0.05),12~24 h in DWI sequence of onset as a regular sequence difference was not statistically significant.Conclusion Magnetic resonance diffusion Imaging finds disease,identification of the lesion,lesions have a higher value,as early treatment provides reliable clinical diagnosis.