The advantage of 3D arterial spin labeling in the diagnosis of transient ischemic attack / 实用放射学杂志

ABSTRACT

Objective To explore the value of magnetic resonance perfusion imaging of 3D arterial spin labeling(3D-ASL)in the diagnosis of transient ischemic attack(TIA).Methods 78 of patients were diagnosed TIA on MR routine scan [T1 WI,T2 WI,T2-FLAIR,diffusion weighted imaging(DWI)],magnetic resonance angiography(MRA)and 3D arterial spin labeling(3D-ASL).The re-sult were analyzed by Chi-square test.Results In 78 patients,the abnormal routine scan was 0 case(0%);abnormal MRA 41 cases (52.6%);abnormal 3D-ASL 47 cases(60.2%);combination with each other were 60 cases(76.9%).29 cases with artery stenosis and abnormal ASL,12 case with artery stenosis and normal ASL,19 cases with normal vascular and abnormal ASL,18 cases with normal vascular and normal ASL.Conclusion 3D-ASL is better than routine magnetic resonance sequences in the diagnosis of TIA,which is convenient and should be a routine scanning sequence of TIA.3D-ASL,MRA and DWI have their own advantages and disadvantages, combination use can improve the diagnosis accuracy of TIA.