A whole body MRI can provide an extraordinary amount of information in a single examination — but booking the first scan you find online is not necessarily the best place to start. Here is a practical guide to choosing a whole body MRI, getting the right referral and preparing for your scan.
Interest in whole body MRI and full body MRI screening has increased rapidly in Australia as more people take an active interest in preventative health and early cancer detection.
But there is an important point to understand before booking:
“Whole body MRI” is a name, not a standardised product.
Two examinations carrying exactly the same name can be very different in scanner technology, imaging sequences, anatomical coverage, scan duration, image quality and radiologist expertise.
At one end of the spectrum are relatively abbreviated whole body survey scans. At the other are high-fidelity, oncology-grade whole body MRI examinations based on the same imaging principles used for cancer staging and surveillance.
MBR Health already explores this distinction in detail in Whole Body MRI Explained: Why Two Scans With the Same Name Can Mean Very Different Things. The quality of the protocol, particularly diffusion imaging, anatomical resolution and interpretation, directly influences what can reasonably be detected.
So, if you are considering having a whole body MRI in Australia, we recommend approaching it in three steps.
Step 1: Decide what is most important to you
The first question is not simply:
“Where can I get a whole body MRI?”
A better question is:
“What do I actually want from my whole body MRI?”
For most people, the decision comes down to some combination of accuracy, cost and convenience.
There is nothing wrong with prioritising cost or convenience. The important thing is understanding what you are purchasing.
If accuracy and early cancer detection are your priority
This is where the distinction between a screening survey and an oncology-grade whole body MRI becomes particularly important.
A screening examination is being performed in somebody who does not have symptoms. That means there is no known abnormality telling the radiographer or radiologist where to look.
In many ways, this makes image quality more important, not less.
If the purpose of the scan is to identify significant disease before it causes symptoms, the abnormalities being sought may be small and subtle.
At MBR Health, our philosophy is therefore simple:
A screening whole body MRI should be an oncology-quality examination performed on an asymptomatic patient.
One useful question is whether the clinic actually performs whole body MRI for patients with known cancer – for staging, surveillance or treatment response – as well as screening healthy individuals.
MBR Health’s Whole Body MRI service is used clinically for oncology staging and surveillance and incorporates whole-body diffusion-weighted imaging with background suppression – DWIBS – alongside anatomical imaging.
You can read more about why DWIBS matters in our guide to choosing a whole body MRI provider.
This matters because a provider that routinely performs both oncology and screening examinations has to maintain imaging quality capable of evaluating genuine cancer patients. The same radiographers acquire the scans, the same imaging platform is used and the images are interpreted within a real clinical radiology environment.
Be particularly careful with booking-platform models
An increasingly common model is an online company that markets and sells a “whole body MRI” but does not actually own or operate the radiology practice performing it.
Instead, the company may purchase unused scanner capacity from another provider. That does not automatically mean the examination is poor. But it creates an important question:
Who is actually responsible for the quality of your scan?
Before paying, you should be able to find out where your examination is being performed, what MRI scanner is being used, who designed the protocol, whether the radiographers routinely perform whole body oncology MRI, who reports the examination and what happens if something abnormal is detected.
If the company taking your money cannot answer those questions – or you cannot speak to anyone knowledgeable about the scan – that should be regarded as a warning sign.
MBR Health’s existing guide, Top 5 Questions to Ask Your Whole Body MRI Provider Before You Book, goes into these questions in considerably more detail.
A 3T scanner alone is not enough
Patients are increasingly told to look for a 3 Tesla MRI scanner. It is a useful consideration, but magnet strength alone does not determine scan quality.
High-quality whole-body diffusion imaging at 3T is technically difficult. A poorly optimised 3T protocol is not automatically superior to a well-designed examination on another platform.
Ask whether the scan includes true anatomically contiguous whole-body DWIBS, how distortion is managed and whether the acquisition meets recognised whole-body oncology imaging standards.
You can read more about what a full body MRI can actually detect and why protocol quality changes its sensitivity.
Cost still matters – but compare like with like
Whole body MRI is usually privately funded in Australia, so price is understandably important.
However, comparing two scans purely by price can be misleading.
A shorter examination with fewer sequences, abbreviated coverage and outsourced reporting is not necessarily equivalent to a longer oncology-focused study with high-resolution anatomical imaging, advanced diffusion imaging and specialist interpretation.
WholeBodyMRI.com.au has a useful comparison of full body MRI costs in Australia and what is actually included in the price.
The cheapest scan may be exactly what you want if your priority is cost.
But if your principal reason for undergoing the examination is early cancer detection, diagnostic fidelity should probably sit near the top of the decision.
Your personal risk matters too. Someone with a significant family history, cancer predisposition syndrome or previous malignancy may reasonably place a much higher value on imaging sensitivity than somebody seeking a general baseline health assessment.
Step 2: Speak with your GP before the scan
Once you have chosen the type of whole body MRI you want, the next step is to talk to your GP.
At MBR Health, MRI examinations generally require a referral. You can even download the MBR Health referral template to take to your GP. MBR Health accepts valid referrals regardless of whether another radiology provider’s name appears on them.
For an otherwise well person seeking preventative screening, the referral can identify the examination as an asymptomatic screening whole body MRI and include relevant personal and family history.
There is another important reason to involve your GP.
Whole body MRI does not replace Australia’s established cancer-screening programs
Australia currently has national screening pathways for breast, bowel, cervical and eligible high-risk lung cancer screening. These programs use tests specifically designed to identify particular diseases and should not simply be abandoned because somebody undergoes a whole body MRI.
Think of these tests as complementary rather than competing.
For example, whole body MRI is not designed to identify tiny bowel polyps in the way colonoscopy can, mammography can demonstrate breast microcalcification that a standard whole body MRI cannot, and low-dose CT remains substantially better suited to screening the lungs in eligible patients.
Our detailed guide, Cancer Screening Tests Full Body MRI Does Not Replace, explains these important blind spots.
Your GP can therefore check whether you are up to date with the screening programs relevant to your age, sex, family history and personal risk – and then use whole body MRI as an additional layer of preventative imaging where appropriate.
What if you already have symptoms?
This is equally important. If you have a persistent symptom, whole body MRI screening is usually not the best first investigation simply because it covers more of the body.
A dedicated MRI, ultrasound, CT or other targeted investigation can be specifically designed around the clinical question and usually provides considerably greater detail of the area causing concern.
For example, a dedicated prostate MRI, breast MRI, pancreatic MRI or neurological MRI can use specialised coils, additional sequences, higher spatial resolution and contrast when required.
Whole body MRI is broad.
Dedicated diagnostic imaging is deep.
If there is a particular problem to solve, depth usually matters more than breadth.
This distinction is discussed further in Whole-Body MRI Is Not a Diagnostic Shortcut.
Step 3: Call the clinic before you book
Once you have your referral, speak directly with the radiology provider – the actual company that is performing the scan itself.
For a complex examination such as whole body MRI, we think this is important.
You should be able to speak with somebody who understands the examination well enough to explain what you are getting.
Ask about the scanner, scan duration, anatomical coverage, DWIBS, who reports the examination, whether oncology whole body MRI is routinely performed at the clinic and what happens if something significant is discovered.
If nobody can answer relatively straightforward questions about the examination they are selling, consider that a red flag.
You are not simply buying 90 minutes inside an MRI scanner (or 60 minutes for one of the less comprehensive versions of full body scanning MRI). You are buying the quality of the images produced during that time and the expertise applied to interpreting them.
Preparing for an oncology-grade whole body MRI
Once booked, the clinic should provide detailed preparation instructions.
At MBR Health these may include fasting, caffeine restriction and bowel preparation, depending on the examination.
Bowel preparation may initially sound excessive for a screening scan, but there is a reason for it. The abdomen and bowel are among the more challenging regions to assess with MRI. Food, bowel contents, gas and bowel movement can interfere with image quality and create artefact. Reducing avoidable interference gives the imaging team the best opportunity to acquire high-quality abdominal images.
The principle is straightforward:
If you are investing in a high-quality whole body MRI, preparation should be designed to obtain the highest-quality scan possible.
You will also complete an MRI safety questionnaire. Tell the clinic about implanted medical devices, previous surgery, metallic foreign bodies, pregnancy or possible pregnancy, kidney disease, previous reactions to MRI contrast and significant claustrophobia.
Depending on the clinical indication and protocol, intravenous gadolinium contrast may also be recommended.
What happens after your whole body MRI?
The final part of a high-quality whole body MRI pathway is what happens after the images have been acquired.
At MBR Health, Whole Body MRI examinations are interpreted by a specialist radiologist experienced in whole-body oncology imaging, with structured reporting incorporating ONCO-RADS principles.
Your report is then returned to your referring doctor – While the abnormal findings from your scan will be clearly identified in the report, the relationship with your referring doctor is still very important.
Screening can discover completely benign abnormalities, findings that simply require surveillance and, occasionally, something requiring urgent investigation. The value of screening therefore depends not just on finding abnormalities, but on correctly determining what they mean and what should happen next.
A provider should have a clear pathway for targeted MRI, CT, ultrasound, biopsy or specialist assessment when required.
The simplest way to think about choosing a Whole Body MRI
There is now a spectrum of products being sold in Australia under the terms whole body MRI, full body MRI and preventative MRI.
- Some prioritise speed.
- Some prioritise price.
- Some prioritise patient convenience.
- Others are designed around oncology-level image acquisition and early cancer detection.
→ None of those considerations is irrelevant.
⇒ But patients should understand the trade-offs they are making.
If your priority is simply obtaining a broad overview of the body at the lowest possible cost, an abbreviated survey may satisfy that goal.
If your principal concern is finding potentially important disease as early and accurately as reasonably possible, then the more important questions become: Who performs the scan? What protocol is being used? Does it include high-quality whole-body DWIBS? Is the clinic experienced in genuine oncology imaging? Who reports it? And what happens when something is found?
The words “Whole Body MRI” on the booking page do not answer any of those questions.
The imaging behind those words does.
Frequently Asked Questions
Do I need a referral for a whole body MRI?
At MBR Health, a referral is required for MRI examinations. You can take the MBR Health referral template to your GP, who can include your personal history, family history and the indication for asymptomatic whole body MRI screening.
Should I have a whole body MRI if I have symptoms?
Usually, symptoms should first be investigated with the most appropriate dedicated diagnostic examination. A whole body MRI is designed primarily as a broad screening examination in people without symptoms and does not reproduce every dedicated MRI sequence for every organ.
Is every 3T whole body MRI oncology-grade?
No. Scanner strength is only one component. Protocol design, diffusion quality, distortion correction, spatial resolution, radiographer expertise and radiologist experience are all important.
Does a whole body MRI replace my normal cancer screening?
No. Whole body MRI should complement—not replace—appropriate breast, bowel, cervical, lung, skin or other targeted screening.
How should I choose a provider?
Ask where the scan is actually performed, whether that clinic routinely performs oncology whole body MRI, whether whole-body DWIBS is included, who reports the scan, what its known limitations are and how abnormal findings are followed up.
Related reading
Top 5 Questions to Ask Your Whole Body MRI Provider Before You Book — MBR Health
Whole Body MRI Explained: Why Two Scans With the Same Name Can Mean Very Different Things — MBR Health
What Can a Full Body MRI Detect? — MBR Health
What to Look for in a Whole-body MRI Provider — Whole Body MRI™
Cancer Screening Tests Full Body MRI Does Not Replace — Whole Body MRI™
How Much Does a Full Body MRI Cost in Australia? — Whole Body MRI™
Is a Full Body MRI Worth It? Benefits, Risks and Costs — Whole Body MRI™