Diffusion tensor imaging (DTI) has become a valuable tool in brain tumor surgery, offering insight into the complex microstructural architecture of white matter regions. This thesis explores the key role of DTI in improving preoperative planning and intraoperative navigation, promoting the preservation of critical neural pathways, and minimizing postoperative neurological deficits. By providing neurosurgeons with detailed information about tumor infiltration and its relationship with important brain regions, DTI facilitates improved surgical strategies, resulting in improved patient outcomes and quality of life.