This study focuses on evaluating magnetic source imaging (MSI) as a tool in the presurgical evaluation of patients with refractory mesial temporal lobe epilepsy (mTLE), with the aim of more accurately localizing the epileptogenic zone (EZ). By improving this, MSI has the potential to enhance surgical planning and outcomes, addressing a critical need in the management of patients who often face persistent seizures despite pharmacological treatment, a condition affecting over 50 million people worldwide. This research seeks to make precision medicine more accessible, ultimately reducing the societal burden of epilepsy through improved surgical success rates. In the broader context, successful epilepsy surgery transforms lives by enabling patients to drive, work independently, and participate fully in society. While this small exploratory study did not reveal breakthrough findings, it contributes important foundational knowledge to the field of epilepsy. Medical advances rarely happen overnight but build upon accumulated evidence from many studies, including those with inconclusive results. Furthermore, clinical researchers planning larger epilepsy studies can learn from the methodological limitations identified here, potentially saving time and resources in future investigations.