磁共振弥散张量成像对诊断脑震荡的价值探讨

目的:探讨磁共振弥散张量成像对诊断脑震荡的价值.方法:应用CT、常规磁共振扫描及磁共振弥散张量成像(DTI)对88例头部轻微伤临床诊断为脑震荡的患者和15名健康志愿者(对照组)进行检查,前者为观察组,后者为对照组.所有图像行DTI图像后处理得到不同兴趣区(ROI)各向异性分数(FA),包括两侧内囊(capsula interna)和外囊(capsula externa)、额叶、枕叶和颞下回部的FA值.将对照组的DTI值经过计算出均值和标准差作为常模.将观察组结果与对照组比较.结果:与对照组比较,观察组中有65例(73.86％)的ROI的FA值下降,另23例(26.13％)和对照组比较没有差异.

Value of MR Diffuse Tensor Imaging in the Diagnosis of Cerebral Concussion

Objective:To investigate the value of magnetic resonance of diffuse tensor imaging in diagnosis of cerebral concussion.Methods:CT,conventional magnetic resonance imaging and magnetic resonance diffuse tensor imaging(DTI) were used to diagnosed cerebral concussion in 88 patients with minor head injury,and 15 healthy volunteers(control group) were examined.There were DTI image processing in different regions of interest(ROI) fractional anisotropy(FA),included both internal capsule(capsula interna) and external capsule(capsula externa),frontal,occipital gyrus Henie FA values.Made DTI in control group after calculated the mean and standard deviation as normative data,and compared 88 cases in experimental group with it.Results:Compared with in control group,in experimental group had 65(73.86%) cases of the ROI FA value decreased;compared with other 23(26.13%) cases in two groups,there was no difference.Conclusion:DTI skill are more sensitive for white matter fiber damage,and accurate positioning,quantitative analysis of degree of injury,provide objective basis for the clinical diagnosis of cerebral concussion.