磁共振扩散张量成像对急性脑干缺血性脑卒中患者运动功能的评估价值

发布时间：2019-07-10 21:08

【摘要】：目的探讨磁共振扩散张量成像(DTI)对急性脑干缺血性卒中(ABIS)患者运动功能的评估价值。方法选择2014年1月至2015年6月在医院接受磁共振成像(MRI)诊断的40例ABIS患者为观察组;另选同期在医院进行头颅MRI检查未见器质异常的健康志愿者40例作为对照组,利用AVANTO 1.5T超导MRI诊断仪为两组受试者实施MRI脑部平扫。对比两组不同部位的DTI和扩散张量的纤维束成像(DTT)参数,观察组患者发病不同时期(发病后7 d、1、6个月)美国国立卫生院神经功能缺损评分(NIHSS)及上下肢的肌力评分,分析观察组患者患侧/健侧相对值与NIHSS及上下肢的肌力评分的相关性。结果观察组患侧梗死灶和大脑脚及内囊后肢的各向异性分数(FA)值,以及皮质脊髓束的数量均显著低于健侧(P0.05)。观察组发病后1、6个月的NIHSS评分与上下肢的肌力评分均显著低于发病后7 d(P0.05)。观察组大脑脚偏侧性值(r FA)与发病后7 d、1、6个月的NIHSS评分及上下肢的肌力评分均呈负相关。结论大脑脚r FA与NIHSS评分及上下肢的肌力评分对ABIS患者的神经功能及运动功能的恢复具有较大的反馈价值。
[Abstract]:Objective to evaluate the value of magnetic resonance diffusion tensor imaging (DTI) in evaluating motor function in patients with acute brainstem ischemic stroke (ABIS). Methods from January 2014 to June 2015, 40 patients with ABIS diagnosed by magnetic resonance imaging (MRI) in hospital were selected as observation group, and 40 healthy volunteers who underwent MRI examination in hospital at the same time were selected as control group. MRI brain plain scan was performed with AVANTO 1.5T superconducting MRI diagnostic instrument. The (DTT) parameters of DTI and diffusion tensor were compared between the two groups. The neurological deficit score (NIHSS) and the muscle strength score of the upper and lower extremities in the observation group were compared at different stages of onset (7 days, 1 month, 6 months after onset). The correlation between the relative value of the affected side and the healthy side and the muscle strength score of NIHSS and upper and lower extremities in the observation group was analyzed. Results the anisotropy scores of infarction, cerebral foot and posterior limb of internal capsule in the observation group were significantly lower than those in the healthy side (P 0.05). The NIHSS score and muscle strength score of upper and lower extremities at 6 months after onset in the observation group were significantly lower than those at the 7th day after onset (P 0.05). In the observation group, (r FA) was negatively correlated with NIHSS score and muscle strength score of upper and lower extremities at 7 days, 1 month and 6 months after onset. Conclusion r FA and NIHSS scores of brain feet and muscle strength scores of upper and lower extremities are of great feedback value to the recovery of neural function and motor function in patients with ABIS.
【作者单位】：贵阳市第二人民医院影像科;
【分类号】：R743.3;R445.2

【相似文献】