Basin magnetic resonance imaging (MRI) is a high-resolution imaging exam that allows detailed assessment of the pelvic bones, sacroiliac joints, muscles, ligament structures and, in some cases, the pelvic organs. It is especially useful in the evaluation of pelvic pain, bone changes, infections, tumors or surgical planning.
What is Pelvic Magnetic Resonance Imaging?
Basin MRI is a non-invasive exam that uses magnetic fields and radiofrequency waves to obtain detailed images of the pelvic region and surrounding structures. It may include the study of the bony pelvis (ilia, sacrum, coccyx), joints, soft tissues and part of the gynecological, urological or intestinal structures, depending on the clinical indication.
What is the price of Basin MRI?
The price of Basin MRI is €275 when performed on a private basis. However, it can also be performed through several agreements, including:
- ADSE: If Basin MRI is performed through ADSE, the patient only pays a fee of €30;
- 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 Basin MRI, the protocol price is €220.
The price varies depending on the healthcare system or insurance you use.
Learn more about the price of MRI exams.
How is it performed?
The patient is positioned lying on their back and a coil is placed over the pelvic region to capture high-definition images.
In some cases, intravenous contrast may be necessary for better characterization of certain lesions.
The MRI scanner is open at both ends.
The average duration of the exam is 30 to 40 minutes. During this time, it is necessary to remain still and follow the instructions of the technical team.
Earplugs are provided to reduce perception of the equipment noise.

What does it detect?
Basin MRI allows the detection of:
- Occult or stress fractures of the pelvic bones;
- Sacroiliitis (inflammation of the sacroiliac joints);
- Deep muscle or ligament injuries;
- Pelvic tumors or masses (bone or soft tissue);
- Postoperative complications;
- Local extension of oncological lesions;
- Congenital or inflammatory changes of the pelvis;
- Among others.
When is it indicated?
Basin MRI may be recommended by the doctor in situations such as:
- Persistent pelvic pain or pain of unknown origin;
- Assessment of pelvic or bone tumors;
- Diagnosis and follow-up of sacroiliitis;
- Planning of orthopedic, oncological or gynecological surgery;
- Assessment of complications after trauma or surgery;
- Study of abdominopelvic masses;
- Among others.
Preparation and guidelines for Basin MRI
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)