目的利用兼容MRI的OxyLiteTM光纤传感器,验证非血流动力学响应函数(non-HRF)后处理算法的血氧水平依赖fMRI(BOLD fMRI)技术评价大鼠皮下C6胶质瘤组织氧含量变化的可靠性。方法构建20只雄性SD大鼠的皮下C6胶质瘤模型。采用1.5 T MRI系统、Micro-47显微线圈及单次激发梯度回波-平面回波(GRE-EPI)序列对瘤体行Carbogen气体(95%O2+5%CO2混
Objective To investigate the location and expression of Fas (Apo-1, CD-95) antigen in synovial tissue from rheumatoid arthritis (RA).Methods Immunohistochemical