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《Chongqing Medicine》 2017-15
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Clinical application value of MRI combined with DWI sequence in the diagnosis and follow-up of patients with meningioma

He Hui;Qiu Weijia;Yang Xinguan;Department of Radiology,Affiliated Hospital of Guilin Medical College;  
Objective To explore the performance of meningiomas in MRI dynamic enhancement and DWI sequence,and to improve the accuracy of differential diagnosis of benign and malignant meningiomas.Methods Meningioma MRI data,which were pathology proved by the Guilin medical college affiliated hospital at different levels(Ⅰ,Ⅱ andⅢ),were retrospectively analyzed.The enhancement of meningiomas at all levels and the extent of edema were summarized,at the meantime the dynamic enhancement perfusion parameters and ADC values of meningioma MRI meningioma were contrastively analyzed.Results There were 30 cases of meningioma located in the brain falcus,27 cases of meningioma located in the sagittal sinus,10 cases of meningioma located in the cerebellopontine angle and 6cases of meningioma located in other parts.The difference of ADC value between gradeⅠ meningiomas and gradeⅢ meningiomas was statistically significant different[(1.253±0.123)×10~(-3) mm~2/s vs.(0.891±0.103)×10~(-3)mm~2/s,P0.05].The relative blood flow(rCBF)and relative blood volume(rCBV)of gradeⅠ meningiomas were significantly lower than those of gradeⅢ meningiomas(P0.05).Conclusion MRI dynamic enhancement combined with DWI can accurately identify gradeⅠ meningiomas and gradeⅢ meningiomas,and it is necessary that the assessment of its classification should be appropriately considered to the higher level for patients who do not have a characteristic manifestation of meningioma in the preoperative.
【CateGory Index】: R445.2;R739.45
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Chinese Journal Full-text Database 5 Hits
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【Co-citations】
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