公开(公告)号：US20110137612A1

公开(公告)日：2011-06-09

申请号：US12959267

申请日：2010-12-02

申请人： Defeng WANG ,  Lin SHI ,  Pheng Ann HENG

发明人： Defeng WANG ,  Lin SHI ,  Pheng Ann HENG

IPC分类号： G06F19/00 ,  G01R33/44

CPC分类号： G01R33/50

摘要： A method and a system for estimating a longitudinal relaxation time in magnetic resonance imaging. The method includes scanning at least one object to form a sequence of data with a plurality of flip angles; regressing linearly the formed sequence of data based on a first signal intensity model associated with the flip angles to obtain an initial estimation for said longitudinal relaxation time; and regressing nonlinearly the formed sequence of data based on a second signal intensity model associated with the flip angles so as to obtain a final estimation for the longitudinal relaxation time, in which the initial estimation is used as an initial guess for the longitudinal relaxation time based on the second signal intensity model.

摘要翻译： 用于估计磁共振成像中的纵向弛豫时间的方法和系统。 该方法包括扫描至少一个对象以形成具有多个翻转角的数据序列; 基于与所述翻转角相关联的第一信号强度模型，线性地回归所形成的数据序列，以获得所述纵向弛豫时间的初始估计; 并且基于与翻转角相关联的第二信号强度模型非线性地回归所形成的数据序列，以获得纵向弛豫时间的最终估计，其中初始估计被用作基于纵向弛豫时间的初始猜测 在第二信号强度模型上。