A stroke (apoplexy) is a sudden disruption of blood flow to the brain, caused either by a blood clot (ischemic stroke) or a brain bleed (hemorrhagic stroke). Magnetic resonance imaging (MRI) plays a crucial role in diagnosis, as it can quickly identify affected brain areas and distinguish between stroke types. Additionally, MRI imaging helps assess the extent of damage, detect risk factors for future strokes, and guide follow-up care.