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MRI

How MRI works, its safety, preparation and what your results mean — magnets and radio waves, no radiation.

15 guides
MRI illustration
Basics

MRI scans explained: how they work and what to expect

An MRI uses magnets and radio waves — not radiation — to take remarkably detailed pictures of soft tissue. Here's how it works, what it's used for, what a scan is actually like in Australia, and how to prepare.

8 min
Technology

3T MRI: what the stronger magnet means for you

A 3 Tesla MRI has a magnet twice as strong as a standard 1.5T scanner. Here's what that extra power does — clearer images, sometimes faster scans — and when it does (and doesn't) matter.

5 min
Technology

Functional MRI (fMRI): what it is and what it's for

Functional MRI maps brain activity by tracking blood flow. Here's how it differs from a standard MRI, where it's used — mainly planning brain surgery and research — and what taking part is like.

5 min
Basics

How does an MRI work? (and what MRI stands for)

MRI stands for magnetic resonance imaging. Here's how an MRI scanner actually works — using magnets and radio waves, not radiation — in plain English.

4 min
What to expect

How long does an MRI take?

Most MRI scans take about 15–45 minutes, depending on the body part and whether contrast is used. Here's a breakdown by scan, why it varies, and how to make the time easier.

3 min
Preparing

How to prepare for an MRI scan in Australia

Most MRIs need little prep — but the metal-and-implant safety check is essential, and a few scans need fasting. Here's exactly what to declare, what to leave at home, and what to bring.

6 min
Safety

Is an MRI safe? The honest answer for Australian patients

MRI uses no radiation and is very safe — but the powerful magnet makes metal the real issue. Here's what to tell your radiographer, how implants and contrast are handled, and what to do about claustrophobia.

8 min
Body parts

MRI for back and spine pain: do you actually need one?

MRI is powerful for serious spinal problems — but for most ordinary back pain, Australian guidelines say a scan isn't needed and can do more harm than good. Here's when an MRI helps, when it doesn't, and the red flags that change the answer.

7 min
Body parts

MRI of the brain: what it shows and when it's used

A brain MRI gives an exceptionally detailed, radiation-free look at the brain. Here's what it's used to investigate — from stroke and MS to headaches and memory problems — and what the scan is like.

6 min
Body part

MRI of the hip: what it shows & what to expect

A hip MRI is the best scan for soft-tissue and early bone problems — labral tears, avascular necrosis and stress fractures. Here's what it shows and what to expect, with no radiation.

4 min
Body part

MRI of the knee: what it shows & what to expect

A knee MRI is the best scan for soft-tissue injuries — ligaments (like the ACL), the meniscus and cartilage. Here's what it shows, what to expect, and the radiation involved (none).

4 min
Body part

MRI of the shoulder: rotator cuff & what to expect

A shoulder MRI is the best scan for the rotator cuff, labrum and tendons. Here's what it shows, when an MR arthrogram is used, and what to expect — with no radiation.

4 min
Results

MRI results: who reads them and when you'll know

A radiologist interprets your MRI and reports to your doctor — not on the day. Here's how the process works in Australia, how long it takes, what the report actually says, and how to get a copy of your images.

5 min
Technology

Open and wide-bore MRI: options for claustrophobia

If the standard MRI tunnel worries you, open and wide-bore scanners can make the scan far more comfortable. Here's how they differ, the trade-offs, and what to ask when you book in Australia.

5 min
Uses

What can an MRI diagnose? A whole-body guide

From the brain to the knees, MRI can investigate an enormous range of conditions. Here's what it's used to diagnose across each part of the body — and the few things other scans do better.

6 min

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