@altabiznet
This type of tinnitus is basically vascular in origin. I had an MRI to rule out problems with brain vessels and tumors. I had ultrasound of neck vessels. I saw an audiologist . Claritin helped because histamine affects vascular tone and pulsatility. By blocking that, it reduced the vascular component of my pulsatile tinnitus, even though imaging showed no dangerous abnormality. It is important to get a workup by an ENT and discuss with your GP if this type of tinnitus persists. MRI not a CT scan -
What MRI shows that CT does not
1. Blood vessels and flow
MRI (often with MRA/MRV):
• Shows arteries and veins
• Detects abnormal connections
• Identifies vascular tumors (glomus, paraganglioma)
• Evaluates venous sinuses
CT is much weaker for this unless contrast is added — and even then it’s limited.
2. Soft tissue near the ear and brain
MRI can detect:
• Small tumors
• Nerve compression
• Meningiomas
• Subtle skull-base lesions