What is a Brain MRI?

A Brain MRI (Magnetic Resonance Imaging) is a diagnostic scan that uses magnetic fields and radio waves to produce highly detailed images of the brain, brainstem, cerebellum and surrounding tissues.

MRI provides superior soft-tissue detail compared to other imaging methods and does not use ionising radiation. It allows assessment of brain structure, blood vessels, nerves and surrounding tissues, helping detect a wide range of neurological conditions.

Brain MRI is commonly used for diagnosis, monitoring, and preventive neurological assessment.

When a Brain MRI is recommended

A Brain MRI may be recommended when symptoms or findings suggest a neurological or brain-related condition.

You may be advised to have a Brain MRI if you:

• Experience persistent or severe headaches
• Have dizziness, fainting or balance problems
• Experience seizures or blackouts
• Have unexplained vision or speech changes
• Have weakness, numbness or tingling
• Have memory problems or cognitive changes
• Have abnormal neurological examination findings
• Require follow-up of known brain conditions

What a Brain MRI assesses

The scan may assess:

• Brain structure and anatomy
• White and grey matter
• Brainstem and cerebellum
• Signs of stroke or reduced blood flow
• Tumours, cysts or masses
• Inflammation or infection
• Multiple sclerosis-related changes
• Blood vessel abnormalities

Contrast may be used in certain cases to enhance diagnostic accuracy.

Benefits of a Brain MRI

• Highly detailed brain imaging
  Superior soft-tissue resolution.
• No radiation exposure
  Safe imaging method.
• Early detection of neurological conditions
  Identifies abnormalities at an early stage.
• Supports accurate diagnosis
  Guides further investigations and treatment.
• Non-invasive and painless
  No needles unless contrast is required.
• Safe for repeat imaging
  Suitable for monitoring over time.
• Assesses multiple brain structures in one scan
  Comprehensive neurological evaluation.
• Widely used in neurology and neurosurgery
  Standard investigation for brain assessment.

How the Brain MRI is performed

The scan is performed by trained radiology staff using MRI equipment.

• You will lie on a motorised table
• The table moves into the MRI scanner
• You must remain still during imaging
• Ear protection is provided due to scanner noise

The scan typically takes 30–60 minutes, depending on the protocol. No recovery time is required afterwards.

Understanding your Brain MRI results

Normal findings

Brain structures appear normal with no significant abnormalities.

Typical report:

• Normal brain MRI

Abnormal findings

Changes such as inflammation, lesions, masses or vascular abnormalities may be identified.

Typical report:

• Abnormal findings identified – further assessment advised

Incidental findings

Unrelated or benign findings may occasionally be noted.

Typical report:

• Incidental findings noted

Results are interpreted by a specialist radiologist and reviewed alongside symptoms and clinical history.