Three perfusion CT parameters of hepatic perfusion index ( HPI ), mean transit time ( MTT ) and permeability-surface area product ( PS ) were compared among controls, patients and subgroups. 通过包括肝灌注指数,造影剂平均通过时间(MTT)和渗透表面积乘积等三个灌注CT的参数在对照组,研究组及其亚组进行了比较。
Determination of the partial mean transit time of high lung volumes and its clinical evaluation 高肺容积部分平均通过时间(MTT)的测定方法和临床意义
Plasma to CSF mean transit time ( MTT ) 0. 3h; 血浆至脑脊液平均通过时间(MTT)(MTT)0.3h;
Maps of relative regional blood volume ( rCBV ) and mean transit time ( MTT ) were obtained. The ratios of rCBV and MTT of lesions were analyzed. 得到相对局部脑血容量(rCBV)图和对比剂平均通过时间(MTT)(MTT)图,计算病灶rCBV和MTT比率。
Qualitative perfusion maps were calculated for regional cerebral blood volume ( rCBV ) and mean transit time ( MTT ). 脑灌注MR包括局部脑血容量图(rCBV)和平均通过时间(MTT)图(MTT)。