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Whole-Body MRI

Whole-body Magnetic Resonance Imaging (MRI) allows the evaluation, in a single session, of multiple regions of the body – usually from the skull to the thighs. It is a non-invasive examination with no ionizing radiation, performed only with a medical prescription.

What is Whole-Body Magnetic Resonance Imaging?

Whole-body MRI is a diagnostic imaging exam that systematically evaluates several regions of the body in the same session, such as:

  • Skull and brain;
  • Spine;
  • Mediastinum and part of the chest;
  • Abdomen and pelvis;
  • Axial skeleton and part of the appendicular skeleton (bone and bone marrow).

It uses specific MRI sequences, including techniques sensitive to changes in bone marrow and soft tissues, to detect inflammatory, infectious, tumoral, or other diffuse or multifocal lesions.

In certain cases, whole-body MRI may be performed without intravenous contrast, using advanced sequences (for example, diffusion-weighted imaging) that allow the identification of suspicious lesions. In selected cases, the radiologist may recommend contrast for better characterization of specific areas or lesions.

What is the price of a Whole-Body MRI?

The price of a whole-body MRI at NRD is 500€, when performed privately.

However, it may be carried out through several agreements, including:

  • ADSE: When the whole-body MRI is performed under ADSE, the patient pays only the fee of 60.
  • IASFA, ADM GNR, SAD PSP.
  • Insurance companies: Médis, Multicare, Advance Care, Allianz, Saúde Prime, Future HealthCare, SS CGD, SAMS Quadros, SAMS, Montepio, RNA, Generali, Mudum, MGEN, Aegon, Vitória, Una Seguros, among other insurers.
  • Health Plans: Medicare, Saúde Prime, Future HealthCare, Continente Wells, ACP, among other health plans.
  • Protocols: NRD has protocols with several clinics and institutions that allow you to undergo the exam at very competitive prices. In the case of whole-body MRI, the price under a protocol is 350.

The price varies depending on the healthcare system or insurance you choose to use.

How is it performed?

The patient is positioned lying on their back inside the MRI scanner.

The exam is performed sequentially, usually from the skull to the thighs, allowing the evaluation of multiple regions of the body in the same procedure. Appropriate coils are used to capture high-definition images in each area.

In some cases, intravenous contrast may be required for better characterization of certain findings. In these cases, it will be necessary to puncture the arm or hand to place a peripheral venous catheter.

The MRI scanner is open at both ends.

The duration of a whole-body MRI is approximately 60 minutes. During this time, it is necessary to remain still and follow the instructions of the technical team.

Earplugs are provided to reduce the perception of the scanner noise.

ressonância magnética

What does it detect?

Whole-body MRI can help detect and characterize various conditions, namely:

  • Bone and bone marrow disease
    • Lesions related to multiple myeloma;
    • Bone metastases from various solid tumors;
    • Pathological fractures or diffuse inflammatory changes.
  • Lesions in internal organs
    • Nodules or masses in thoracic, abdominal, and pelvic organs (e.g., liver, kidneys, pancreas, spleen);
    • Enlarged lymph nodes (lymphadenopathy).
  • Muscle and soft tissue involvement
    • Soft tissue tumors;
    • Certain inflammatory myopathies or extensive infections, in selected contexts.
  • Overall assessment of oncological disease
    • Initial staging in certain tumors;
    • Monitoring treatment response or surveillance in specific diseases.

In which cases is it indicated?

Whole-body MRI should always be considered by a physician on a case-by-case basis. It is sometimes considered in situations such as:

  • Known oncological disease, to:
    • Assess disease extent (staging);
    • Search for bone and visceral metastases;
    • Monitor treatment response in certain tumors.
  • Multiple myeloma and other hematological diseases
    • Assessment of the extent of bone and marrow infiltration.
  • High-risk oncological genetic syndromes
    • In selected contexts, agreed upon between the attending physician and the radiologist, it may be considered for surveillance of certain high-risk hereditary syndromes.
  • Suspicion of multifocal inflammatory or infectious disease
    • Example: suspicion of systemic rheumatic diseases with involvement of multiple joints or structures.
  • Diffuse bone pain, laboratory abnormalities, or unexplained systemic symptoms, when other exams have been inconclusive and the physician considers a global assessment useful.
  • Among other cases.

Preparation and guidance for whole-body MRI

Before having an MRI at NRD, please consider the following:

Topic Guidance
Exam Prescription (paper copy) You must bring the Exam Prescription in paper format.
Fasting Generally, fasting is only necessary when contrast is used. In most cases, fasting is 3 hours (we confirm at the time of booking, as there are exceptions).
Arrive early Arrive 15 minutes before the scheduled time.
Medication You may take important, non-deferrable medication with the minimum amount of water.
Metal objects Remove all metal objects (e.g., earrings, bracelets, necklaces, piercings, hair clips, removable prostheses, etc.).
Pregnancy Inform the NRD healthcare professional if you are pregnant.
Tests / analyses / clinical information Bring previous exams, relevant clinical information, and your latest lab results.
Glucose monitoring implant Do not apply the implant, as it will have to be removed before the exam.
Make-up Do not wear make-up, as some products may interfere with the exam.
Valvular and/or orthopedic prostheses If you have valvular and/or orthopedic prostheses, bring proof describing the device and the material composition.
Hearing aids Inform us if you use a hearing aid, as it must be removed before the exam.
Dental prostheses Inform us if you use a dental prosthesis, as it must be removed before the exam. Also inform us if you have dental implants.
Orthodontic appliances Let us know if you have orthodontic braces/appliances. A test may be needed to assess compatibility with MRI.
Pacemakers and implantable devices NRD does not perform MRI scans on people with pacemakers or implantable devices (e.g., cochlear implant). In these cases, it is recommended that the exam be done in a hospital setting.

Throughout the MRI exam, you will be continuously monitored by the NRD imaging technologist responsible for your exam. You will also have access to an alert system that you can activate if you need assistance.

You must remain still during the exam to ensure image quality.

After the exam, you can return to your usual routine, unless your doctor advises otherwise.

When and how will you receive the results?

You will receive the MRI results within 7 days after the exam, either by email or in paper format at the clinic. On the day of the exam, you will receive a CD with the images.

Where can it be performed?

Whole-body MRI can be performed at NRD, at the following address:

Avenida Columbano Bordalo Pinheiro, nº 11-B, ground floor, 1070–060 Lisbon (near Praça de Espanha).

Who can undergo a whole-body MRI?

Most adults can undergo a whole-body MRI, provided there are no specific contraindications, such as certain implanted metallic devices or particular clinical situations.

The exam must always be performed with a medical prescription.

In children and adolescents, the indication is more restricted and depends on the clinical context and the ability to cooperate during the exam.

If you have any doubts, speak with your physician or the NRD team before scheduling.

Is whole-body MRI reimbursed by the SNS?

No. Magnetic resonance imaging is not reimbursed by the SNS.

Does whole-body MRI hurt?

No. It is a completely painless exam.

During the exam, you will only need to remain lying down and still. You may experience some discomfort due to prolonged positioning or scanner noise, but earplugs are provided and we will do our best to ensure your comfort.

Which doctor can request a whole-body MRI?

Any physician may request a whole-body MRI, provided there is clinical justification:

  • General and family medicine;
  • Internal medicine;
  • Oncology;
  • Hematology;
  • Rheumatology;
  • Orthopedics;
  • Other specialties, depending on the condition under evaluation.

The clinical information provided by the physician (reason for the exam, diagnoses, previous exams) is essential for the radiologist to adjust the protocol and correctly interpret the results.

How long does the exam take?

The total duration of a whole-body MRI may vary depending on the protocol and whether contrast is used, but on average it lasts about 60 minutes, and may be longer if additional sequences are included or preparation is more complex.

Is fasting required?

Generally, fasting is only required when contrast is used.

In most cases, fasting is 3 hours (this will be confirmed at scheduling, as there are exceptions).

Is it dangerous? What are the risks?

Magnetic resonance imaging is a safe exam, with no side effects or harm to your health, as it does not use ionizing radiation. For the vast majority of people, it poses no risks.

However, there are situations in which special precautions are required (see contraindications).

In rare cases, gadolinium-based contrast may cause mild allergic reactions. Its use is avoided in people with severe renal failure.

What are the contraindications?

The powerful magnetic field used in MRI attracts iron-containing objects and can cause them to move with great force.

Metallic objects implanted in the body may pose a danger, as they can move or heat up during MRI. Some conditions are frequently contraindications for MRI. Therefore, if you have any of the following devices/materials, you must inform us before the exam:

  • Pacemakers or implanted devices: Cardiac pacemakers or defibrillators, ferromagnetic aneurysm clips, electrodes used in deep brain stimulation, cochlear implants, mechanical heart valves, among other metallic devices;
  • Metallic foreign bodies: Shrapnel or other metallic objects in the body may be heated and/or moved by the magnetic field and must be evaluated to determine the risk of injury. This includes tiny metal fragments or splinters that may have lodged in the eye due to welding, grinding, or accidents.
  • Some types of ocular implants pose a risk of eye damage due to metallic components.

Other situations that may contraindicate this exam include:

  • Known allergy to gadolinium (if contrast is used);
  • Severe renal failure (when contrast is used);
  • Pregnancy;
  • Drug infusion devices may malfunction during MRI. The details of the specific model will determine whether and how MRI can be performed safely.

According to the U.S. Food & Drug Administration (FDA), some adhesive patches and electrodes used in electrocardiograms (ECGs) may cause skin burns during MRI.

This list does not detail all possible contraindications to MRI. Discuss any concerns with the healthcare professional who will accompany you before the exam.

I am pregnant. Can I undergo a whole-body MRI?

Generally, MRI is avoided in pregnant women. If you are pregnant or think you might be, always inform your physician and the NRD team before scheduling.

In urgent situations, and only under clinical criteria, the exam may be considered, preferably after 12 weeks of gestation, always avoiding the use of contrast whenever possible.

Is contrast necessary?

Not always. In whole-body MRI, many protocols can be performed without contrast, using specific sequences that allow the identification of suspicious lesions (such as diffusion-weighted sequences).

The decision to use contrast is made by the radiologist based on:

  • Clinical situation;
  • Type of disease being investigated (e.g., oncological context);
  • Previous exams and information provided by the attending physician.

Do I need special care after the exam?

In most cases, no special care is required after a whole-body MRI. You may resume your normal routine immediately after the exam.

If contrast was administered, good hydration in the following hours is recommended, unless otherwise advised by your physician.

Does whole-body MRI replace other exams (CT, ultrasound, targeted MRI)?

Not necessarily. In many situations, whole-body MRI complements other imaging exams.

CT may be preferred for evaluating fine bone structures or the lungs; ultrasound remains widely used for the initial assessment of various organs.