Mismatch ratio in CT perfusion and diffusion weighted imaging to evaluate the lesion outcome of acute ischemic stroke patients
10.3969/j.issn.1002-1671.2024.07.002
- VernacularTitle:CT灌注成像中 Mismatch比值和扩散加权成像评估急性缺血性脑卒中患者病灶转归
- Author:
Yanjun XIE
1
;
Dequan CHEN
;
Jing PENG
;
Xingpan YOU
;
Yu CAI
;
Bin GUAN
;
Yuan YU
;
Lidan YANG
Author Information
1. 重庆市合川区人民医院放射科,重庆 401520
- Keywords:
acute ischemic stroke;
computed tomography perfusion;
diffusion weighted imaging;
hemorrhagic transformation
- From:
Journal of Practical Radiology
2024;40(7):1043-1047
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influencing factors of Mismatch ratio in computed tomography perfusion(CTP)and dif-fusion weighted imaging(DWI)to assess the lesion outcome after treatment in patients with acute ischemic stroke(AIS).Methods Whether there were any differences in clinical and imaging data of AIS patients were analyzed retrospectively between the Mismatch ratio＞1.2 group and the Mismatch ratio≤1.2 group,and between the hemorrhagic transformation group and the non-hemorrhagic transformation group.Results The age of onset and National Institutes of Health Stroke Scale(NIHSS)score of AIS patients in the group with Mismatch ratio＞1.2 were greater than those in the group with Mismatch ratio≤1.2.The Mismatch ratio＞1.2 group had lower incidence of hyperlipidemia,new infarct foci,and higher hypercoagulability,cerebral hemorrhage,as well as large cerebral infarction.The NIHSS score was higher in the hemorrhagic transformation group than the non-hemorrhagic transformation group,and the incidence of large cerebral infarction and digital subtraction angiography(DSA)thrombectomy was higher in the former than in the latter.Multifactorial logistic analysis showed that age,NIHSS score,and hyperlipidemia were independent risk factors for AIS patients with Mismatch ratio＞1.2 and large cerebral infarction was an independent risk factor for hemorrhagic transformation.Conclusion The Mismatch ratio in CTP is correlated with age,NIHSS score,and hyperlipidemia in patients with AIS and large cerebral infarction is correlated with hemorrhagic transformation.
