The rest fifty-six cases of LVOP appeared high or slight high intensity signals changes on T 1WI of SE sequence MRI,and changes of signals were not sensitively demonstrated on T 2WI.

• 余 56例LVOP在SE序列T1 WI上表现为高或略高信号改变 ,而T2 WI显示信号的变化不甚敏感 ;