fMRI Study of Functional Reorganization in Glioma Patients

Glioma is an invasive growth, easy to relapse, poor prognosis, great harm to human and society. Studies have shown that gliomas can cause the dynamic reorganization of brain functional areas, affecting the accuracy of surgical resection and the evaluation of long-term efficacy. While, it is difficult to monitor the functional reorganization of glioma in existing studies. The development trend can not effectively predict the outcome of tumor anaplasia and the compensation of brain function, which restricts the accurate tumor resection. In the early stage of this study, functional connectivity analysis was carried out of gliomas in the motor region and showed that the damage of motor functional connectivity on the opposite side of the lesion occurred earlier than that on the same side, suggesting that there may be some rules of how the disease caused functional reorganization. After stroke, the language and motor function will undergo plasticity, causing the functional areas to slowly repair the damaged function. Contrast to stroke, low-grade glioma grows slower, which gives brain more time to adapt to the damage caused by tumor growth, it may cause more functional reorganization. Professor Hugues Duffau's research showed that it is brain plasticity that can effectively explain patients with low-grade gliomas, even in language and motor areas, did not appear obvious dysfunction. Our previous research found there were significant differences in motor functional connectivity between the two hemispheres of the patients between the plasma tumor group and healthy controls. In addition, in the tumor group, the damage of motor connection on the contralateral side of the lesion occurred before on the ipsilateral side. These results suggest that brain function has been remodeled in patients with brain tumors who have not yet exhibited motor impairment. We presume there may be a certain pattern of brain function reorganization caused by low-grade glioma. This study take patients with brain glioma as the research object and adopt a multi-time point experimental design, combining with cortical electrical stimulation and multimodal magnetic resonance imaging data before and after operation, intending to observe the dynamic changes of language and motor function networks.

Sex

All

Inclusion Criteria:

* All cases underwent no treatment or surgery before examination;
* Can cooperate to complete routine MRI, fMRI, DTI, and rfMRI were required and the image quality was graded the value of analysis;
* All cases were confirmed by craniotomy and pathology;
* Right-handed;
* Mass lesion located in the left dominant hemisphere
* single lesion;
* No chronic diseases such as hypertension and diabetes

Exclusion Criteria:

* History of neurological diseases;
* Previous history of brain trauma accompanied by consciousness disorder;
* Before scanning 6, a history of long-term use of psychoactive substances such as alcohol and drug within one month;
* Obviously mentally handicapped;
* magnetic resonance (NMR) check for contraindications;
* Family history of neuropsychiatric disorders

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