MRI
MRI, or magnetic resonance imaging, uses strong magnetic fields and radio waves to create detailed images inside the body.
By Doccio Clinical Team · Sources reviewed October 2026
MRI, or magnetic resonance imaging, uses strong magnetic fields and radio waves to create detailed images inside the body. It does not use ionising X-ray radiation. Safety screening is still essential because implants, metal fragments and other circumstances can affect whether and how the examination is performed.
Why does the team ask about metal?
The strong magnetic field can interact with some objects and devices. Tell the imaging team about implants, prior surgery, metal fragments and any device information card. Do not decide that an implant is safe simply because a previous scan was completed elsewhere.
Some devices are compatible only under specific conditions. The imaging team needs accurate details to assess those conditions. Remove items as instructed and do not bring unapproved metal objects into the scanner area.
For the Australian guidance behind this explanation, see Healthdirect Australia: MRI scan - Healthdirect Australia.
What is the experience like?
You usually lie still while images are collected, and the scanner can be noisy. The space may feel enclosed. Tell the service beforehand if you have claustrophobia, pain, movement difficulties or communication needs. They can explain available arrangements and whether extra preparation is needed.
Some examinations use contrast material. Mention pregnancy, kidney problems and previous reactions so the team can assess suitability. Follow the specific instructions rather than fasting or changing medicines on your own.
Does MRI always give a definite answer?
No. The images need interpretation in the context of symptoms and examination. Some findings may be incidental, while some symptoms may not be explained by the scan. Ask the referring clinician what question is being investigated and how results will be followed up.
Read Doccio's imaging service information for its current process. A doctor decides whether MRI or another investigation is appropriate, and funding rules and fees vary. Emergency symptoms require urgent assessment rather than waiting for a routine outpatient MRI request.
Where to go next
Read imaging to understand the relevant service. A doctor decides whether a consultation, examination, referral or another pathway is appropriate for your situation.
Ready when you are.
Start online in a few minutes. An Australian doctor reviews your request and gets back to you, usually within the hour.