Diagnostic value of CT and MRI in acute ischemic stroke
10.3969/j.issn.1002-1671.2018.03.003
- VernacularTitle:急性缺血性脑卒中CT、MRI诊断价值
- Author:
Kaixi XU
1
;
Guangkui FENG
;
Xinjian CHEN
;
Taosheng ZUO
;
Jin WANG
;
Yun MENG
;
Fangyun HU
;
Min XU
;
Xianjun MA
;
Guangrong BIAN
Author Information
1. 连云港市中医院 南京中医药大学连云港附属医院影像科
- Keywords:
middle cerebral artery;
acute ischemic stroke;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2018;34(3):339-343
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the diagnostic value of helical CT,fluid attenuated inversion recovery(FLAIR),magnetic resonance angiography (MRA)and susceptibility weighted imaging (SWI)at 3.0T MR for acute ischemic stroke (AIS).Methods 48 cases of AIS(<72 h)underwent conventional CT,MRI,MRA and SWI.The correlations between hyperdense middle cerebral artery sign (HMCAS),proximal hyperintense vessel sign(HVS),magnetic sensitive spatially-integrated susceptibility vessel sign(SVS),vascular dot middle cerebral artery sign(DMCAS),distal HVS and collateral circulation of the blood vessels surrounding leptomeninges expansion degree were analyzed.Results In 48 AIS cases,HMCAS were showed in 18(37.5%),DMCAS 12(25.0%),proximal HVS 33(68.7%), distal HVS 40(83.3%),SVS 43(89.6%)and surrounding soft meningeal vascular 39(81.2%).The difference between spatially-integrated SVS and HVS was statistically significant (P<0.05);For HVS and HMCAS responsibility blood vessels at the bottom,the difference was statistically significant(P<0.01).For pia mater lesions around the blood vessel and distal HVS display degree,the responsibility of the blood vessels was high consistency(P=0.789).The difference between MCA distal HVS and DMCAS was statistically significant (P<0.01).Conclusion It has obvious consistency for SVS,proximal HVS and HMCAS of MCA on the responsibility of AIS.SWI is better than FLAIR and CT.It has obvious statistical sighificance between DMCAS,HVS and surrounding leptomenings vasodilatiov.
