MRI of the knee

Magnetic resonance imaging is one of the modern highly informative methods for diagnosing pathological processes in internal organs and tissues. The study does not have a radiation or radio wave load on the body, therefore it has a minimum of contraindications.

MRI of the knee is performed for a detailed examination of the ligaments, muscles, cartilage, menisci, patella, tendons, vessels, nerve endings and bone tissues of the joint. Using the magnetic resonance technique the doctor receives clear layered images to visualize damage, inflammation and other pathologies of this area of the musculoskeletal system. There are MR tomography of the knee with and without contrast.

What does an MRI of the knee show

Magnetic resonance imaging is an effective method for diagnosing diseases of the knee joint, which is more informative than CT or X-ray. The study is prescribed to confirm the primary diagnosis or to assess the condition after the treatment.

What the doctor sees on a series of layered MRI images of the knees:

  • Injuries to bones and cartilage, meniscus, patella due to trauma of any age.
  • The condition of the blood vessels.
  • Diseases of the knee joint - arthrosis, osteoarthritis, arthritis, Baker's cyst, synomyoma.
  • Injuries to ligaments and tendons.
  • Tumours with differentiation into benign and malignant, metastases.
  • Inflammatory processes and tissue necrosis.
  • Ruptures and pinched meniscus.

Standard examination includes layered images of the knee in different projections (in flat and three-dimensional space).

If oncology is suspected, the doctor recommends an MRI with contrast enhancement. With the help of this type of diagnostics, a specialist can accurately study the structure of blood vessels, damaged tissues and neoplasms. In the presence of cancerous tumors, it is possible to determine their clear boundaries and sizes, the presence of metastases.

In case of bone injury (dislocation, fracture), a more revealing diagnostic method is X-ray or computed tomography. MRI is focused on studying the state of tissues, blood vessels, cartilage and neoplasms.

Indications for knee MRI

An orthopedist, surgeon, oncologist, internist, or other specialist refer a patient for an MRI of the knee when:

  • The need to clarify the diagnosis after the initial examination using other methods.
  • Complaints of frequent pain in the knees, swelling, crunching of the joints when moving.
  • Sports injuries
  • Diagnosed fluid accumulation.
  • Loss of mobility or feeling of instability in the joint.
  • Suspicion of rupture of ligaments or tendons, damage to the meniscus.
  • Complications after the installation of implants or endoprostheses.
  • Primary or secondary examination in oncology.
  • Infectious pathologies (osteomyelitis).
  • Examination before surgery - arthroscopy, surgery after trauma.

Diagnosis is important for making a diagnosis and prescribing adequate treatment. In the pictures, the doctor will see not only pathologies in tissues, bones or cartilage, but also establish the cause of their appearance. In oncology, it is possible to determine the stage and extent of tissue damage.

How does an MRI of the knee joint work

Diagnosis is carried out on a tomograph - a device that works with a magnetic field with a strength of 1.5 Tesla. The equipment can be open and closed tunnel type, consists of a radio frequency coil and a retractable table.

Preparation

No special training is required for a standard examination. When appointing an MRI with contrast, the following requirements should be met:

  • Do not eat 6 hours before the procedure or have the test done in the morning on an empty stomach.
  • Within 2 hours of going to the clinic, refrain from smoking.
  • Tell your doctor if you have allergies, chronic kidney disease, asthma, pregnancy, or metal objects in your body (implants, endoprostheses, clips, pacemakers).

Before the diagnosis, the patient changes into clothes without metal fasteners, removes all metal accessories, false teeth, hearing aid.

Diagnosis Process: Frequently Asked Questions

How is an MRI of the knee done? The patient lies down on a table that slowly moves inside the tunnel. The limbs are fixed with soft rollers. When the scanner moves, the magnetic field is directed to the object under study, then, under the effect of resonance, the waves are reflected. The sensor receives the signal and converts it into clear images on the screen. During the entire procedure, you can not move so that the picture is clear.

When performing an MRI with contrast, a standard series of images is first taken, then a special ferromagnetic fluid (gadolinium) is injected into the patient's blood. This is done by intravenous injection. Then the scan is repeated.

The technique involves comparing pictures before and after the injection of a contrast agent.

How long does a knee MRI take? The diagnostic takes about 30 minutes in standard mode and about 45 minutes with a contrast enhancer.

What does it feel like during an MRI? During the operation of the device, the patient feels warmth and a slight tingling in the knee area, which is normal. The scanning procedure and the injection of a contrast agent are painless. If pain or burning occurs, the patient can stop the device by pressing the button inside the tunnel. A built-in microphone and speaker are provided to communicate with the doctor.

Contraindications

MRI of the knee joint cannot be done if there are metal objects in the body (fragments, fixed prostheses, implants). A strong magnetic field can move the implant and cause tissue damage. Also, a contraindication to MRI is the presence of a pacemaker, which can fail under the influence of magnetic resonance.

Contrast enhancement during tomography is prohibited for pregnant and lactating women, patients with renal or hepatic insufficiency, as well as people allergic to the components of the substance.

How much does a knee MRI cost

The price of diagnostics depends on the use of contrast enhancement and additional services. An MRI of the knee joint in Moscow at the "K+31" clinic costs from 14,500 rubles. Additionally, you can order a transcript of the result. Tomography in our clinic is performed on high-precision modern equipment 1.5 Tesla. Research is carried out by doctors who have extensive practical experience in diagnostics.

To register for the procedure, you must call the reception at +7 (499) 999-31-31 or fill out the feedback form on the website.

Service record



Specialists

All specialists
Sinitsyn
Valentine Evgenyevich

Chief Consultant in Radiation Diagnostics, Radiologist

Doctor of Sciences, PhD, professor

Maso
Michael Lvovich

Mammologist, radiologist, ultrasound diagnostician

PhD

Puzakov
Kirill Borisovich

Leading Consultant in Radiology, Radiologist

Chichkanova
Tatyana Vladimirovna

Oncologist-mammologist, radiologist

Kondratyev
Eugene Valerevich

Leading CT Specialist, MRI

PhD, leading research fellow

Sychenkova
Irina Yuryevna

Leading MRI Specialist

Leading expert MNIOI them. P.A. Herzen

Schulz
Eugene Igorevich

Leading neuroradiologist in MRI and CT diagnostics

PhD

Vasilieva
Yulia Nikolaevna

Radiologist, leading specialist in radiation diagnostics

PhD

Yagizarov
Imran Rasulovich

Head of the department of radiation diagnostics, radiologist