Do i need an mri for pulsatile tinnitus?

Could be helpful: Pulsatile tinnitus may be caused by a variety of things such as a dural arteriovenous fistula, an aberrant blood vessel, or possibly a vascular tumor in the ear (glomus tympanicum). Mri or ct could be helpful to determine the cause but a specialist like and ENT needs to evaluate your symptoms to best decide on the course of action.