This chapter discusses the advancements and applications of 3 Tesla (3T) MRI in detecting structural lesions in epilepsy patients, particularly those with drug-resistant epilepsy where precise localization of epileptogenic zones (EZ) is crucial for successful surgical outcomes. Since its clinical introduction, 3 T MRI has demonstrated superior sensitivity and specificity over the older 1.5 Tesla (1.5T) MRI. Studies indicate that 3T MRI improves lesion detection rates, enhancing both diagnostic accuracy and surgical planning. Although approximately 30% of patients remain “MRI-negative,” meaning no lesion is visible even on 3T, these higher-resolution images allow for a more detailed examination of epileptogenic zones, often revealing previously undetectable abnormalities. In comparison with other imaging methods, such as CT and nuclear imaging, 3T MRI provides unique structural information that complements functional data from PET and SPECT, making it the imaging modality of choice for presurgical epilepsy evaluation. Advanced techniques, such as functional MRI and diffusion tractography, further benefit from 3T’s enhanced signal-to-noise ratio, aiding in mapping brain function and white matter tracts near epileptogenic lesions. However, 3T MRI is not without limitations. The stronger magnetic field may pose risks for patients with certain implants, and there are also logistical challenges, such as limited head space in the MRI coil and louder noise levels. Although 7 Tesla (7T) MRI offers even higher resolution, technical challenges and increased artifacts limit its current practicality for routine use. Overall, 3T MRI represents an optimal balance between imaging resolution and clinical feasibility, significantly contributing to improved epilepsy care by enabling more accurate lesion localization, thereby guiding both diagnosis and treatment strategies for epilepsy patients. Future directions focus on refining 3T imaging techniques and exploring the potential of 7T MRI to further enhance lesion detectability.