The Comparative Study Of Glioma,Meningioma By Magnetic Resonance Perfusion Imaging

Objective: Through undertake magnetic resonance perfusion weighted imaging(MR-PI),to explore the characteristic and regularity of intracranial glioma,meningioma.Materials and methods: Thirty-nine patients with brain tumor 15 gliomas(?-?grade glioma,7;I-II grade glioma,8)and 24 meningioma underwent routine,enhanced MRI and perfusion MRI examination.Pseudo-color figures of MRPI were obtained from MR post processing workstation.The r CBV,r MTT of the diseased region and the normal white matter on corresponding region of the contralateral hemisphere were measured,and r CBV and r MTT ratio were calculated.The statistical analysis of the rr CBVand rr MTT between groups were done.then to see the statistical differencesResults: The maximum rr CBV of high,low grade glioma and meningioma was 9.25 ±3.25,3.28±1.89,7.73 ±5.42 respectively;The rr MTT was 1.18 ±0.11,1.10 ±0.13,1.38± 0.23 respectively.The entity part of the high and low grade glioma in maximum rr CBV was statistically significant(p < 0.05)and had no statistical significance(p > 0.05)in rr MTT;Maximum rr CBV between meningioma and low grade glioma was statistically difference(p < 0.05),while has no statistical significance with high grade glioma(p >0.05);There was statistically significant difference(p < 0.05)in rr MTT of high,low grade glioma and meningioma.Conclusions: 1.rMTT PWI parameters in glioma,meningioma,the differences were statistically significant,has certain value in the differential diagnosis.2.Parameter r CBV between high and low grade glioma group and there exists significant difference between low grade glioma and meningioma,can be used to diagnosis and differential diagnosis of high and low grade glioma or low grade glioma and meningioma.