摘要
目的探讨磁共振弥漫张量成像在脑振荡患者中的应用价值。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、临床诊断为脑振荡的患者和15名健康志愿者(对照组)进行检查。行DTI图像后处理得到不同兴趣区(ROI)和各向异性分数(FA),包括两侧内囊和外囊、额叶、枕叶和颞下回部的FA值。将对照组相应部位的DTI值计算出均值和标准差作为常模,将88例观察组与之比较。结果与对照组比较,实验组中有65(73.86%)例的ROI的FA值均下降,另23(26.13%)例和对照组比较没有差异。结论 DTI技术对白质纤维损伤较为敏感,能准确定位、定量分析损伤程度,可为临床诊断脑振荡提供客观依据。
Objective To investigate the application value of magnetic resonance of diffuse tensor imaging in patients with cerebral concussion. Methods CT, conventional magnetic resonance imaging and magnetic resonance diffusion tensor imaging （ DTI ） were used in 88 patients with minor head injm^y, and the clinical diagnosis of cerebral concussion patients and 15 healthy volunteers （ control group） was examined. Afler DTI imaging, different regions of interest （ ROI ） and fractional anisotropy （ FA ） were obtained, including the FA value of both sides of internal capsule and the capsule, the frontal, occipital and temporal gyrus. The con＇esponding DT1 values of control group were calculated to get the mean and standard deviation as the norm, which was compared with 88 cases of test group. Results Compared with control group, FA value of ROI in 65 patients （73.86%） in the experimental group was decreased; that of the other 23 cases （26.13%） did not differ from the controls. Conclusion DTI is more sensitive to the damage of white matter fiber with accurate positioning and quanti- tative analysis of degree of injury. It provides objective basis for the clinical diagnosis of cerebral concussion.
出处
《安徽医学》
2013年第2期180-182,共3页
Anhui Medical Journal
关键词
磁共振弥散张量成像
脑振荡
部分各向异性
Magnetic resonance diffusion tensor imaging
Brain concussion
Fractional anisotropy
