摘要
目的利用扩散峰度成像(DKI)技术观察超急性期(〈24 h)轻度脑外伤(mTBI)患者脑白质微细结构的改变。方法选取2016年5月至2017年6月杭州师范大学附属医院急诊科诊断的mTBI患者52例,招募性别、年龄、受教育年限匹配的健康对照者21名。两组均行3.0 T DKI扫描。DKI数据分析采用FSL软件进行预处理、基于纤维束示踪的空间统计(TBSS)方法测量白质异常。结果mTBI患者组与健康对照组的性别和受教育程度差异无统计学意义(P=0.427、0.235)。在独立样本t检验中,mTBI患者组与健康对照组年龄差异无统计学意义(P=0.165)。mTBI患者组胼胝体膝部、胼胝体体部、胼胝体压部、右侧内囊前肢、左侧内囊前肢、右侧内囊后肢、右侧前辐射冠、左侧前辐射冠、右侧上辐射冠、左侧上辐射冠、右侧后辐射冠、左侧后辐射冠、左侧下额枕束、右侧上纵束、左侧上纵束的平均扩散峰度值[(1.095±0.080)、(1.130±0.066)、(1.160±0.080)、(1.135±0.077)、(1.108±0.076)、(1.203±0.069)、(1.073±0.056)、(1.052±0.055)、(1.170±0.055)、(1.149±0.050)、(1.028±0.056)、(1.051±0.059)、(0.868±0.060)、(1.194±0.048)、(1.183±0.054)mm2/s]低于健康对照组[(1.153±0.054)、(1.184±0.057)、(1.215±0.068)、(1.181±0.053)、(1.163±0.062)、(1.258±0.041)、(1.115±0.037)、(1.096±0.049)、(1.210±0.040)、(1.190±0.049)、(1.063±0.042)、(1.087±0.057)、(0.913±0.063)、(1.236±0.047)、(1.214±0.038) mm2/s](均P〈0.01)。两组的各向异性分数值差异无统计学意义(P〉0.01)。结论在常规磁共振成像无异常发现的情况下,DKI技术可以更好的发现mTBI患者超急性期脑白质结构的异常。
ObjectiveTo explore the changes of cerebral white matter in the hyperacute period (〈24 h) patients with mild traumatic brain injury (mTBI) by diffusion kurtosis imaging(DKI) technique.MethodsA total of 52 patients with mTBI were included in this study, collected in Emergency Department of Affiliated Hospital of Hangzhou Normal University from May 2016 to June 2017. Twenty-one healthy controls were recruited at the mean time(gender, age and years of education were matched with the patients). DKI data were acquired with 3.0 T scanners.The FSL software was used to preprocess the DKI data, and the white matter abnormalities were detected by tract-based spatial statistics (TBSS).ResultsThere were no statistical differences in gender, age and years of education between mTBI patients and healthy controls (P=0.427, P=0.235, P=0.165). The values of MK of the body of corpus callosum (BCC), the genu of corpus callosum (GCC), the splenium of corpus callosum (SCC), the bilateral anterior limb of interbal capsule (ALIP), the right posterior limb of internal capsule (PLIC_R), the bilateral anterior corona radiate (ACR), the bilateral posterior corona radiate (PCR), the bilateral superior corona radiate (SCR), the left inferior fronto-occipital fasciculus (IFOF_L)and the bilateral superior longitudinal fasciculus (SLF) were lower in mTBI patients((1.095±0.080), (1.130±0.066), (1.160±0.080), (1.135±0.077), (1.108±0.076), (1.203±0.069), (1.073±0.056), (1.052±0.055), (1.170±0.055), (1.149±0.050), (1.028±0.056), (1.051±0.059), (0.868±0.060), (1.194±0.048), (1.183±0.054) mm2/s) than those in healthy controls((1.153±0.054), (1.184±0.057), (1.215±0.068), (1.181±0.053), (1.163±0.062), (1.258±0.041), (1.115±0.037), (1.096±0.049), (1.210±0.040), (1.190±0.049), (1.063±0.042), (1.087±0.057), (0.913±0.063), (1.236±0.047), (1.214±0.038) mm2/s)(P〈0.01). However, there were no statistical differences in fractional anisotropy (FA) between groups (P〉0.01).ConclusionDKI technology is more sensitive in detecting cerebral white matter abnormalities in patients with hyperacute mTBI which routine MRI findings was normal.
作者
鲁兴启
李洁
张树飞
张克明
陈沁园
丁建平
Lu Xingqi;Li Jie;Zhang Shufei;Zhang Keming;Chen Qinyuan;Ding Jianping(Department of Radiology,the Affiliated Hospital of Hangzhou Normal University,Zhejiang 310015,China)
出处
《中华医学杂志》
CAS
CSCD
北大核心
2018年第31期2466-2470,共5页
National Medical Journal of China
基金
杭州市重点专病专科项目(20150733Q19)