中国中西医结合影像学杂志
中國中西醫結閤影像學雜誌
중국중서의결합영상학잡지
Chinese Imaging Journal of Integrated Traditional and Western Medicine
2015年
5期
488-490,493
,共4页
弥散张量成像%磁共振成像%各向异性分数%表现弥散系数%小脑上脚
瀰散張量成像%磁共振成像%各嚮異性分數%錶現瀰散繫數%小腦上腳
미산장량성상%자공진성상%각향이성분수%표현미산계수%소뇌상각
Diffusion tensor imaging%Magnetic resonance imaging%Anisotropy anisotropy%Apparent diffusion coefficient%Superior cerebellar peduncle
目的:应用DTI定量评估小脑上脚和小脑上脚交叉的各向异性分数(fractional anisotropy,FA)与ADC值,并比较小脑上脚与小脑上脚交叉数值之间的差异性. 方法:回顾性分析100例在我院行颅脑MRI检查患者的DTI图像数据,由2名专家运用ROI功能在FA图和ADC图上分别测量小脑上脚交叉和两侧小脑上脚的FA值和ADC值. 计量资料比较采用配对样本t检验. 结果:100例中,平均FA值两侧小脑上脚为0.710±0.049,明显高于小脑上脚交叉0.514±0.042,差异有统计学意义(t=37.165,P=0.000). 小脑上脚和小脑上脚交叉的平均ADC值分别为(759.59±30.87)×10-6 mm2/s和(723.86±36.33)×10-6 mm2/s,差异有统计学意义(t=8.128,P=0.000). 结论:小脑上脚交叉的FA值和ADC 值均低于小脑上脚,说明两者的微细结构存在差异性. FA图可以区分小脑上脚和小脑上脚交叉.
目的:應用DTI定量評估小腦上腳和小腦上腳交扠的各嚮異性分數(fractional anisotropy,FA)與ADC值,併比較小腦上腳與小腦上腳交扠數值之間的差異性. 方法:迴顧性分析100例在我院行顱腦MRI檢查患者的DTI圖像數據,由2名專傢運用ROI功能在FA圖和ADC圖上分彆測量小腦上腳交扠和兩側小腦上腳的FA值和ADC值. 計量資料比較採用配對樣本t檢驗. 結果:100例中,平均FA值兩側小腦上腳為0.710±0.049,明顯高于小腦上腳交扠0.514±0.042,差異有統計學意義(t=37.165,P=0.000). 小腦上腳和小腦上腳交扠的平均ADC值分彆為(759.59±30.87)×10-6 mm2/s和(723.86±36.33)×10-6 mm2/s,差異有統計學意義(t=8.128,P=0.000). 結論:小腦上腳交扠的FA值和ADC 值均低于小腦上腳,說明兩者的微細結構存在差異性. FA圖可以區分小腦上腳和小腦上腳交扠.
목적:응용DTI정량평고소뇌상각화소뇌상각교차적각향이성분수(fractional anisotropy,FA)여ADC치,병비교소뇌상각여소뇌상각교차수치지간적차이성. 방법:회고성분석100례재아원행로뇌MRI검사환자적DTI도상수거,유2명전가운용ROI공능재FA도화ADC도상분별측량소뇌상각교차화량측소뇌상각적FA치화ADC치. 계량자료비교채용배대양본t검험. 결과:100례중,평균FA치량측소뇌상각위0.710±0.049,명현고우소뇌상각교차0.514±0.042,차이유통계학의의(t=37.165,P=0.000). 소뇌상각화소뇌상각교차적평균ADC치분별위(759.59±30.87)×10-6 mm2/s화(723.86±36.33)×10-6 mm2/s,차이유통계학의의(t=8.128,P=0.000). 결론:소뇌상각교차적FA치화ADC 치균저우소뇌상각,설명량자적미세결구존재차이성. FA도가이구분소뇌상각화소뇌상각교차.
Objective:This study is to compare the fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values between superior cerebellar peduncle (SCP) and decussation of SCP (DSCP). Methods:Axial FA maps and ADC maps of 100 neurologically normal subjects (47 men,53 women; age range:22-78 years,mean age:52.4 years) using diffusion tensor imaging (DTI) were evaluated retrospectively. Measurement of the FAs and ADC values was done by two radiologists and by placing circular ROIs in the SCP and DSCPs. Paried-Sample t-test was used to evaluate the difference of FA and ADC values of SCP and DSCP. Results:In 100 healthy patients,the mean FA value was significantly higher in the SCP (0.710±0.049) than in the DSCP (0.514±0.042),the difference was significant (t=37.165,P=0.000). The mean ADC value was significantly higher in the SCP (759.59±30.87×10-6mm2/s) than in the DSCP (723.86±36.33×10-6mm2/s),the difference was significant (t=8.128,P=0.000). Conclusion:Both FA and ADC values of the DSCP are lower than those of the SCP,which show structural difference between SCP and DSCP.
