Objective To evaluate the accuracy of CT or MRI-guided stereotactic biopsy in making correct pathological diagnosis and choosing corresponding management of brain tumors.

Objective to analyse the histological diagnostic results of stereotactic biopsy for brain lesions under computer tomography guidance, meanwhile, to explore the operation techniques of brain biopsy.

Objective: To evaluate the safety and accuracy of minimally invasive stereotactic biopsy of the brain, explore the operation method and technical note.