Full Body MRI

Medically Reviewed By: Dr Leonard Leng – MBBS, MMed (FM), GDOM, DWD
Last updated: Feb 12, 2026

A full body MRI is a comprehensive imaging scan that provides detailed images of most major organs and soft tissues in a single session, without exposing you to ionising radiation. It typically covers areas from the brain down to the mid-thigh and does not routinely include the lower legs.

By capturing high-resolution images of areas such as the brain, spine, chest, abdomen, pelvis, and major joints, a full body MRI offers a broader view of internal structures than targeted scans that focus on a single symptom or body part.

This can help identify potential concerns earlier, support clearer discussions with your doctor, and give a better understanding of what is happening inside the body.

A full body MRI works by using a strong magnetic field and radiofrequency pulses to generate signals from hydrogen atoms in the body.

Unlike ionising radiation used in CT scans and X-rays, magnetic fields and radio waves are not associated with DNA damage, which is why MRI is commonly regarded as a non-radiation imaging option.

These signals are processed by a computer to produce high-resolution cross-sectional images, particularly of soft tissues such as organs, muscles, nerves, and blood vessels, where MRI often provides greater detail than many other imaging methods.

The main difference between a full body MRI and a targeted MRI is the scope of areas examined and the clinical reason for performing the scan.

A full body MRI can show structural changes in different parts of the body that may be linked to certain medical conditions.

Disclaimer: A full body MRI uses a broad screening approach to assess multiple body areas in one scan and may not detect all issues or abnormalities.

A full body MRI does not reliably detect all medical conditions, especially those that do not cause visible structural changes in organs or tissues.

For example, MRI may not clearly show:

• Metabolic disorders, such as diabetes or cholesterol problems, which are better detected through blood tests
• Hormonal conditions, such as thyroid disorders, which affect how the body functions rather than organ structure
• Digestive conditions, such as irritable bowel syndrome, which do not cause structural abnormalities
• Very early inflammation or infection, before visible tissue changes occur
• Early cellular changes that have not yet altered the shape or size of organs

MRI is also less suitable for assessing lung air spaces and some bowel conditions, where investigations such as CT scans, endoscopy, or functional tests may be more informative.

In addition, a full body MRI does not replace cancer screening tools such as mammograms, Pap smears or HPV tests, and stool tests or colonoscopy, as these are established screening tools designed to detect cancers in specific regions.

A full body MRI typically takes 60 to 90 minutes and involves several steps:

1. Before the scan begins, you will be asked to change into a gown. Ear protection is usually provided at this stage to reduce discomfort from the scanner noise.
2. You will then lie flat on a motorised table, which moves slowly into the MRI scanner.
3. Images are taken of different body regions as the scan progresses. In some cases, a contrast agent may be used to improve image detail.

During the scan, you may hear rhythmic knocking or tapping sounds from the machine. The scan itself is painless, but it is important to remain still to ensure clear and accurate images.

A full body MRI is commonly well tolerated, but there are some considerations to be aware of before deciding on the scan.

• Physical comfort – You may feel some discomfort from lying still for an extended period, especially if you have joint or back issues.
• Claustrophobia and noise – The enclosed scanner space and loud knocking sounds may be uncomfortable for some individuals, although ear protection is provided.

Discussing these factors with your doctor before the scan helps determine whether a full body MRI is suitable and what steps may be taken to support your comfort and safety.

Preparing for your full body MRI is usually straightforward and helps ensure the process goes smoothly:

1. Wear clothing that is easy to change out of
2. Avoid wearing metallic objects such as jewellery and watches, as these will need to be removed
3. Follow fasting instructions if contrast is used, where applicable
4. Inform your doctor of relevant medical history, including pregnancy, implanted medical devices, prior surgeries, any history of contrast reactions, or claustrophobia

MRI instructions may vary depending on the scan protocol used. We will provide instructions prior to your appointment with us.

At ATA Medical, we offer a comprehensive range of MRI imaging services, including full body MRI, with prices as follows:

Note: MRI scans are performed at our partner radiology centres, with results reviewed and explained by our doctors.

For MRI scans of areas not listed, please contact us for more information.

You can use up to $600 from your MediSave each year per patient for an MRI scan when it is for the diagnosis or management of a medical condition. This amount may be claimed from your own MediSave or that of an immediate family member.

This does not extend to plain X-rays or certain other imaging tests, which are covered under separate MediSave provisions.

If you need clarification on eligibility or claims, please contact us for more information.

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