Application research of magnetic resonance cerebral perfusion weighted imaging in differentiating intracranial neoplastic lesions from non-neo-plastic lesions
Objective To investigate the value of magnetic resonance cerebral perfusion imaging in differentiating intracra-nial neoplastic lesions from non-neoplastic lesions.Methods A total of 33 patients with intracranial tumors confirmed by pathology admitted to Linyi People's Hospital from February 2020 to February 2024 were selected as the tumor group.All patients were astrocytoma,and they were divided into low-grade group(15 cases)and high-grade group(18 cases)according to tumor grade.A total of 40 patients with non-neoplastic intracranial lesions were selected as control group.The maximum cerebral blood flow(CBF)and the maximum cerebral blood volume(CBV)of the tumor were calculated by conventional MRI sequence and cerebral perfusion weighted imaging.The CBF and CBV values of each group were compared,and the imaging findings were analyzed.Results In the tumor group,the CBF and CBV values of the high-grade group were higher than those of the low-grade group,and the differences were statistically significant(P＜0.05).The CBF and CBV values of tumor group were higher than those of control group,and the differences were statistically significant(P＜0.05).The images showed that the CBF and CBV values of the patients with astrocytoma,encephalitis and demyelination were higher than those of the contralateral normal tissue,indicating obvious hyperperfusion manifestations.Conclusion When the astrocy-toma is atypical,cerebral perfusion weighted imaging is feasible to improve the diagnostic coincidence rate of intracranial neoplastic lesions and non-neoplastic lesions.When there is a significant increase in perfusion,neoplastic lesions should be considered.
Magnetic resonance imagingPerfusion weighted imagingIntracranial tumorNon-neoplastic lesionsDiffer-ential diagnosis
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维普
