Intraaxial brain tumors that are tributary to surgical treatment. Prospective observational study of the use and effectiveness of intraoperative neuronavigation ultrasound, intraoperative tractography, intraoperative fluorescence, advanced neuronavigation and intraoperative neurophysiology in the resection of intracranial supratentorial tumors.

5-aminolevulinic acid (5-ALA) is a pro-drug that causes fluorescent protoporphyrins that accumulate in malignant gliomas. Fluorescence can be visualized during surgery by the use of a modified microscope, which helps the surgeon define the margins of the tumor.

Neuro-navigated intraoperative ultrasound is an imaging technique that allows us to visualize intracranial lesions during surgery and correlate them with the image provided by the neuronavigator, obtaining a real-time view of the lesion and possible tumor remains.

To achieve greater tumor resections without increasing the incidence of neurological deficits, the use of intraoperative neuromonitoring has been progressively implemented. This technology and specifically the brain mapping allows us to locate the functional areas of the brain and perform more aggressive resections with lower morbidity

Effectiveness of new intraoperative technologies in the resection of intracranial tumors in terms of percentage of intracranial tumor resection and neurological deficit