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MR Urography

MR Urography is a high-resolution imaging exam that allows detailed visualization of the elements of the urinary system (kidneys, ureters and bladder), enabling the assessment of morphological and functional changes of the urinary tract. It is a non-invasive, radiation-free alternative to CT urography or exams with iodinated contrast.

What is MR Urography?

MR Urography is a non-invasive exam that uses magnetic fields and radiofrequency waves to generate detailed images of the upper and lower urinary tract. It is particularly useful in the study of obstructions, malformations, recurrent infections, tumoral lesions or post-surgical assessment. It is frequently indicated when it is desirable to avoid exposure to radiation or iodinated contrast.

What is the price of MR Urography?

The price of MR Urography is €500 when performed on a private basis. However, it can also be performed through several agreements, including:

  • ADSE: If MR Urography is performed through ADSE, the patient only pays a fee of €50;
  • 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, and other insurers.
  • Health Plans: Medicare, Saúde Prime, Future HealthCare, Continente Wells, ACP, and 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 MR Urography, the price through protocol is €400.

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

Learn more about MRI prices.

How is it performed?

The patient is positioned lying on their back, with a coil placed over the abdominal and lumbar region. In most cases, gadolinium-based intravenous contrast is administered to improve the visibility of the urinary structures. It may also be necessary to administer a diuretic to improve distension of the urinary tract and the quality of the images.

During the exam, it is necessary to remain still and cooperate with breathing pauses as instructed by the technical team.

The average duration varies between 30 and 45 minutes.

Earplugs are provided to reduce perception of the equipment noise.

The MRI scanner is open at both ends.

MR Urography

What does it detect?

MR Urography allows the detection of:

  • Obstructions of the urinary tract (e.g., strictures, stones, compressions);
  • Congenital anomalies (duplications, ectopic kidneys, malrotations);
  • Renal, urothelial or bladder tumors;
  • Complicated urinary tract infections (e.g., pyelonephritis, renal abscesses);
  • Traumatic or post-surgical lesions of the urinary system;
  • Bladder changes and urinary function alterations;
  • Among others.

When is it indicated?

MR Urography is indicated for:

  • Suspected urinary obstruction or hydronephrosis;
  • Assessment of renal or urothelial tumors;
  • Study of urinary tract malformations;
  • Diagnosis of complicated recurrent urinary tract infections;
  • Post-surgical urological follow-up;
  • Intolerance to iodinated contrast (used in CT);
  • Need to avoid exposure to radiation;
  • Among others.

Preparation and guidelines for MR Urography

Before undergoing MRI at NRD, please consider the following factors:

Topic Guideline
Exam Prescription (paper form) You must bring the Exam Prescription in paper format.
Fasting Most MRI exams do not require fasting. For exams with contrast, fasting for 3 hours is usually necessary (confirmed upon scheduling).
Early arrival Arrive 15 minutes before the scheduled time.
Medication You may take essential medication with a minimal amount of water.
Metal objects Remove all metal objects (e.g., earrings, bracelets, necklaces, piercings, hairpins, removable prostheses, etc.).
Pregnancy Inform the NRD healthcare professional if you are pregnant.
Previous exams / Tests / Info Bring previous exams, relevant clinical information and recent laboratory tests.
Glucose monitoring implant Do not place the implant, as it will need to be removed before the exam.
Makeup Do not wear makeup, as some products may interfere with the exam.
Valve and/or orthopedic prostheses If you have valve and/or orthopedic prostheses, bring documentation describing their material and composition.
Hearing aids Inform the clinic if you use a hearing aid, as it must be removed before the exam.
Dental prostheses Inform the clinic if you use a dental prosthesis, as it must be removed before the exam. Also inform them if you have dental implants.
Orthodontic appliances Inform the clinic if you have orthodontic appliances. A test may be required to assess compatibility with MRI.
Pacemakers and implantable devices NRD does not perform MRI on people with pacemakers or implantable devices (e.g., cochlear implants). The exam should be performed in a hospital setting.

Throughout the MRI exam, you will be continuously monitored by the NRD imaging technician responsible for your exam. An alert system will also be available for you to activate if needed.

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

The entire NRD team will be available to answer any questions you may have.

After the exam, you may resume your normal routine.

When and how do you receive the results?

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

Where to do it?

MRI can be performed at NRD, at the following address:

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

How long does Uro MRI take?

Between 30 and 45 minutes, depending on the complexity of the study and whether contrast is needed.

Do I need any special care after a Uro MRI?

No. If contrast is used, it is recommended to stay well hydrated in the hours following the exam.

Is a Uro MRI covered by the National Health Service (SNS)?

No. MRI exams are not reimbursed by the SNS.

Are there any risks with Uro MRI? Is it dangerous?

No. Uro-MRI is a safe exam, with no harmful side effects, as it does not use ionising radiation.
When contrast is administered, mild allergic reactions may occur, although they are rare.
In people with severe kidney impairment, contrast should be avoided.

What are the contraindications for Uro-MRI?

The powerful magnetic field used in MRI attracts objects containing iron, which may move with great force.
Metallic implants in the body can be dangerous because they may move or heat up during the exam. Several conditions are commonly considered contraindications.

You must inform the staff if you have any of the following:

  • Pacemakers or implanted devices: cardiac pacemakers or defibrillators, ferromagnetic aneurysm clips, electrodes used in deep brain stimulation, cochlear implants, mechanical heart valves and other metallic devices;

  • Metallic foreign bodies: shrapnel or other metal objects in the body may heat up or move due to the magnetic field. These require evaluation to determine the risk of injury. This includes tiny metal fragments that may have entered the eye from welding, grinding, or accidents;

  • Certain types of eye implants: some ocular implants with metallic components may pose a risk.

Other situations that may contraindicate the exam include:

  • Known allergy to gadolinium (if contrast is used);

  • Severe renal failure (when contrast is needed);

  • Pregnancy;

  • Medication infusion devices, which may malfunction during MRI depending on the model;

  • According to the U.S. Food & Drug Administration (FDA), some ECG patches and electrodes may cause skin burns during MRI.

This list does not cover all possible MRI contraindications. Discuss any concerns with the healthcare professional responsible for your exam.

Is Uro MRI performed with contrast?

Yes. Contrast is usually required to clearly visualise the kidneys, ureters, and bladder.

Does Uro MRI replace CT urography?

In many cases, yes. Uro-MRI allows evaluation of the urinary tract without radiation exposure, making it a safe alternative for patients with iodinated contrast allergies or those requiring frequent monitoring.