Intraoperative MRI and 5-ALA Guidance to Improve the Extent of Resection in Brain Tumor Surgery (IMAGER)

The investigators hypothesize that the rate of radiologically complete resections of contrast-enhancing brain tumors following surgeries aided by use of 5-ALA induced fluorescence guidance and use of an intraoperative ultra-low field MRI is higher compared to surgeries aided by 5-ALA induced fluorescene alone.