[Ischaemic or transient attack? Magnetic resonance imaging in transient ischaemic attack: a review of 106 cases].

Introduction: Transient ischaemic attack (TIA) has classically been defined as an episode of self-limited focal neurological deficit lasting up to 24 hours, with no neuroimaging evidence of established acute ischaemic injury. However, the definition of this entity is changing, and is adapting to new times and new diagnostic techniques, including magnetic resonance imaging (MRI) with diffusion sequences. An early and comprehensive approach to TIA, including MRI, is important to rule out clinically recovered established ischaemic strokes, in order to optimise the diagnostic and therapeutic management of patients.