Clinical Study of Magnetic Sensitive Weighted Imaging and Diffusion-weighted Imaging Combined with Conventional MRI in the Diagnosis of Intracerebral Hemorrhage
Objective To investigate the clinical diagnostic value of conventional brain scan sequence combined with magnetic susceptibility weighted imaging(SWI)and diffusion weighted imaging(DWI)in the diagnosis of focal cerebral hemorrhage.Methods 200 patients with suspected cerebrovascular diseases from January 2021 to January 2023 were selected as the study subjects.The MRI images of 128 patients with focal cerebral hemorrhage were studied.Results Among 128 cases,95 cases were hypertensive microhemorrhage,20 cases were amyloidosis,4 cases were cerebral infarction with hemorrhage,9 cases were cavernous hemangioma.On T1WI,focal hemorrhage was mainly hypointensive,on T2WI and T2-FLAIR,it was mainly hypointensive or isotensive,and on DWI,it was mainly hypointensive or isotensive.Focal hemorrhage in SWI sequences was dotted,round-like or circular hypointensity.In 128 patients with focal cerebral hemorrhage,there were 128,96 and 40 positive cases in SWI sequence,96 positive cases in DWI sequence and 40 positive cases in MRI sequence.The detectable rate of hemorrhagic focus in SWI sequence was higher than that in DWI sequence and MRI sequence,and the difference was statistically significant(P＜0.05).In 128 patients,SWI sequence found 896 hemorrhagic focus,while DWI sequence detected 302 and 67 hemorrhagic focus respectively.The number of hemorrhagic focus in SWI sequence was significantly higher than that in DWI and MRI sequence,and the difference was significant(P＜0 05).There were 235 cases in cortex,216 cases in basal ganglia,208 cases in thalamus and 237 cases in supratentorial.There was no significant difference in the distribution of focal cerebral hemorrhage.Conclusion SWI,DWI combined with MRI can improve the diagnostic accuracy of focal cerebral hemorrhage,and have important clinical significance in the diagnosis,treatment and prognosis of patients with related brain diseases.
Magnetic Resonance ImagingMagnetic Sensitive Weighted ImagingDiffusion-Weighted ImagingSmall Focal Cerebral Hemorrhage
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