Comparison of pCASL, 3D-TOF-MRA and DSA in the diagnosis of ischemic cerebrovascular diseases

LI Jifeng; QI Hengxin

Abstract：Objective To compare the value of pCASL,3D-TOF-MRA and DSA in the diagnosis of ischemic cerebrovascular diseases.Methods From June 2016 to June 2017 in the Department of neurosurgery in our hospital,98 patients with ischemic cerebrovascular disease patients were taken as the research object,pCASL was performed using 3.0 T magnetic resonance imaging system 3 D-TOF-MRA examination,pCASL + 3D-TOF-MRA examination.Using DSA angiography,we observed and compared the 4 methods to determine the consistency of ischemic cerebrovascular disease patients with intracranial artery stenosis.Results With DSA as the control,the accuracy of pCASL was 89.8％,the specificity was 77.55％,the sensitivity was 90.82％.There was no significant difference between the 2 methods (P ＞0.05 =0.180),and the 2 methods had the same degree of agreement (κ =0.553,P ＜ 0.05).3D-TOF-MRA accuracy was 83.67％,specificity was 55.1％,sensitivity was 87.76％,compared with the 2 methods,there was no significant difference (P ＞0.05 =0.180),and the 2 methods were less consistent (κ =0.331,P ＜0.05).MRA + pCASL in the detection of intracranial artery stenosis and accuracy was 91.84％,the specificity was 87.5％,sensitivity was 93.33％,compared with 2 methods,there was no significant difference (P ＞0.05 =0.180),2 kinds of methods were in good agreement (κ =0.752,P ＜ 0.05).Conclusion On the basis of 3D-TOF-MRA,plus pCASL scan for observation and judgment,high positive findings have been improved,in clinical,3D-TOF-MRA + pCASL combined use is worth promoting.