磁共振DTI在老年脑梗死Wallerian变性中的诊断价值

发布时间：2018-06-30 00:34

本文选题：磁共振弥散张量成像 + 脑梗死　；参考：《中国老年学杂志》2016年18期

【摘要】：目的探讨磁共振弥散张量成像(DTI)在老年脑梗死Wallerian变性中的诊断价值。方法老年超急性期或急性期脑梗死Wallerian变性患者89例,全部患者均施行常规MRI、DTI检查,根据发病时间将患者分为超急性期组(超急性期脑梗死,36例)与急性期组(急性期脑梗死,53例),比较两组患者DTI各参数的差异。结果全部患者病灶Exat值较对侧增高,DCavg值较对侧降低,急性期组Wallerian变性患者病灶VRA值、FA值较对侧降低(P0.05),超急性期组Wallerian变性患者BTCI ROI Exat值、VRA值与FA值较对侧明显增高,DCavg值较对侧明显降低(P0.05)。与超急性期组比较,急性期组BTCI ROI Exat值、VRA值、FA值明显增高,DCavg值明显降低,DCavg、VRA、FA相对值明显降低(P0.05)。结论磁共振DTI各参数在老年超急性与急性脑梗死中存在特定的变化规律,其在磁共振DTI在老年脑梗死Wallerian变性中的诊断中具有重要的应用价值。
[Abstract]:Objective to evaluate the diagnostic value of diffusion Zhang Liang imaging in elderly patients with Wallerian degeneration of cerebral infarction. Methods Eighty-nine elderly patients with Wallerian degeneration of hyperacute or acute cerebral infarction were examined with conventional MRI DTI. According to the time of onset, the patients were divided into two groups (36 cases of hyperacute cerebral infarction) and 53 cases of acute phase (53 cases of acute cerebral infarction). The difference of DTI parameters between the two groups was compared. Results the Exat value of the lesions in all patients was higher than that in the contralateral side and the DCavg value was lower than that in the contralateral side. The value of VRA and FA in Wallerian patients with Wallerian degeneration in the acute phase was lower than that in the contralateral side (P0.05), and the values of VRA and FA in the Wallerian patients with Wallerian degeneration in the hyperacute phase were significantly higher than those in the contralateral side (P0.05), and the values of DCavg and FA in the patients with hyperacute Wallerian degeneration were significantly higher than those in the contralateral side (P0.05). Compared with the hyperacute phase group, the BTCI ROI Exat value and the VRA value and FA value in the acute phase group were significantly increased and the DCavg value significantly decreased (P0.05). Conclusion the parameters of Mr DTI have specific changes in the aged patients with hyperacute and acute cerebral infarction, and it has important application value in the diagnosis of Wallerian degeneration of senile cerebral infarction.
【作者单位】：蚌埠医学院第二附属医院放射科;安徽医科大学第一附属医院磁共振室;
【分类号】：R445.2;R743.3

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