DTI对致痫性局灶性皮质发育不良病灶定侧意义的初步探讨

Chinese Imaging Journal of Integrated Traditional and Western Medicine(2021)

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Abstract
目的:探讨致痫性局灶性皮质发育不良(FCD)患者丘脑DTI参数的变化及其临床相关性.方法:选取致痫性FCD患者和正常对照组各15例,行DTI扫描,并手动测量2组双侧丘脑DTI参数,即ADC值及各向异性分数(FA).2组丘脑ADC值及FA值比较行Levene检验,2组双侧丘脑各参数比较行配对t检验.结果:FCD组患侧丘脑FA值(0.249±0.034)低于对照组(0.268±0.037),差异有统计学意义(F=2.663,P=0.010);患侧丘脑ADC值[(8.727±0.420)×10-3 mm2/s]低于对照组[(8.956±0.505)×10-3 mm2/s],差异无统计学意义(F=1.817,P>0.05).FCD组患侧丘脑的FA值与ADC值均低于对侧,差异均有统计学意义(t=5.473,P<0.001;t=3.212,P=0.006).结论:致痫性FCD患者中双侧丘脑的DTI参数有着特殊改变,DTI在致痫性FCD的临床定侧及神经影像学机制的研究上具有一定的临床应用价值.
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