【摘要】 目的 :分析脑梗塞后MRI短T1 信号的分布、表现特点 ,对其可能的机制进行初步的分析和预测。方法 :回顾性分析105例脑梗塞灶直径>2cm的脑梗塞病人的MRI资料 ,扫描时病程在1d～120d范围内。结果 :105例脑梗塞病人中出现短T1 信号者占48.57 %(51/105)。脑梗塞后短T1 信号最早见于发病后3d内 ,高峰期为发病后7～30d ,短T1 信号的出现与病程呈正相关 (r=0.41 ,P<0.01)。脑梗塞后短T1 信号可发生在皮质区 (59 % )、皮质下区(31 % )及基底节区 (10%) ;表现为线状 (49 % )、斑片状(37%)和斑点状(14%)。结论 :缺血性脑梗塞后短T1 信号的出现与病程呈正相关 ,高峰期为病程第7d～30d ;其产生的病理生理学机制可能为再灌注损伤、皮质层状坏死。更多还原

【Abstract】 Objective: Analysing the use of biofeedback training in order to treat the encopresis caused by Congenital anal-rectal malformation and anus trauma. Methods: Activating the patients’ latent ability by biofeedback training( BFT),which make them defecate independently. Results: The biofeedback training(BFT) not only can in crease the patients’ self-confidence, but also can improve their life quality. Conlusion: BFT is an effective curarive means for patients who have suffered from encopresis.更多还原