Мрт a knee joint: what shows and how do they do?

Mgr of the knee joint - how is the diagnosis performed and what does the preparation for the study and the price

Injuries, autoimmune processes, high loads can cause complaints of discomfort and pain in the knee joint.

One of the informative methods of investigation is the MRI of the knee joint is a procedure that can help with accurate diagnosis of the patient's disease, which is important for effective follow-up treatment.

Learn how the procedure goes, its advantages and indications, where to make it inexpensive.

What is MRI of the knee joint

Magnetic resonance imaging of the knee joint is a modern type of scanning, with which you can obtain a layered image of a specific part of the body.

The research is based on the use of magnetic resonance, rather than the harmful rays of the X-ray apparatus.

By means of a tomography it is possible to receive in detail exact information not only about bones, but also the circulatory system, soft tissues.

Medical specialists are appointed to make an MRI of the knee in such cases:

1. Alternative X-ray diagnostic option for fractures, sprains and bone injuries.
2. Scanning allows you to detect inflammatory foci, shows the pathology of the circulatory system and soft tissues.
3. Research by an electronic tomograph is used for arthritis and arthrosis.
4. It is carried out to establish the degree of damage in injuries.
5. With suspected tendonitis, synovitis and other inflammatory diagnoses.
6. As a way to monitor the patient's condition after installing the knee implant.
7. Helps identify the anatomy of Hoff's disease and Baker's cyst.
8. If it is necessary to build three-dimensional models of the knee joint to determine the plan and extent of further surgical intervention.
9. To determine the cause of chronic pain in the knee.
10. In a complex study of cancer.

Benefits

MRI scanning of the knee joint in contrast to ultrasound, X-ray and IR has such advantages:

• the most informative and accurate method of research, it helps to get a clear layer-by-layer snapshot of all tissues;
• a safe method of diagnosis, it does not have a negative effect on the body of certain radiation doses, as in x-ray;
• painless procedure;
• lack of special training before and after the rehabilitation period.

Preparation

The MRI process does not require the patient to adhere to a special treatment regime in the form of a diet or taking special medications. But when you introduce contrast, do not eat at least five hours before you will be diagnosed.

Before entering the cabinet, remove all metal objects. The patient either gets one-off clothes, or must undress to underwear.

Children under 7 years of age and patients with nerve disorders should take sedatives in order to remain immobile during the scan and random movements do not affect the quality of the image.

How passes

A tomography of the knee is performed at any time of the day. To start, the patient is asked to fill out a questionnaire. It is important to specify all diseases, especially chronic, if there are allergic reactions.

Next, you are orally introduced to the procedure, the order form is printed, and the results of the scan are displayed. Diagnostic passes into the office, where the tomograph is located.

It should fit comfortably in the device, because scanning takes some time, during which it is important to remain still to receive clear pictures. Movable table slide into the tunnel.

In order to improve the result, a special coil is used when examining the knee joint.

Although the bulb has a closed structure with limited space, it is ventilated and has a built-in microphone to communicate with the doctor, so there's nothing to worry about.

When the procedure is completed, the doctor will report this, after which the patient may be free. It takes from an hour to several days to decrypt. Results are given for the next day. The package consists of:

• layered shots;
• doctor's opinion;
• computer disk with a recorded procedure.

What MRI shows

MRI of the knee helps to conduct research for such components of the patient's body:

• visualize the condition of the bone parts;
• get a snapshot of the tendons, blood vessels and menisci;
• To analyze the structure of soft tissues for the detection of formations.

Contraindications

It is forbidden to undergo MRI:

1. In the presence of claustrophobia. Scanning takes place in an enclosed chamber, takes from 15 minutes to an hour, so the risk of panic for such patients is limited. But if there is an acute need or no other way to diagnose, medication is administered to sleep.
2. If the body has metal implants. The impact of the scanner can lead to their heating and displacement.
3. Women during pregnancy and lactation should be injected with contrast agents should not, but the tomograph itself is not prohibited.
4. Patients with a large complexion and large weight are shown to undergo a procedure in open types of apparatus. Most tomographs are designed for a person weighing up to 130 kg. Some models allow a load of up to 250 kg.
5. In the presence of some types of tattoos, the colors of which contain metallic impurities.
6. People suffering from psychological and nervous disorders without taking soothing drugs.
7. MRI can not be prescribed if the body has electronic devices: insulin pump, pacemakers, neurostimulators, hearing aids.

Price

A high degree of diagnosis and uniqueness of the procedure raise the question of how much the MRI of the knee is worth. The price of the procedure depends on the region. The highest cost in Moscow and St. Petersburg.

In the capital institutions the price starts from 2000 rubles to 1, 00 rubles. Cheaper diagnostics will cost at night time - from 1800 rubles.

The cost of MRI of the knee increases, depending on the need for additional procedures:

• contrast enhancement - from 4950 rubles;
• consultation of the clinic doctor - from 500 rubles;
• the price of the film is from 700 rubles.

Where is the MRI of the knee joint?

Diagnostic institution	The price of research in rubles
European Center on the street. Shchepkina	17216
DTMT Novoslobodskaya	from 1800
Family Clinic at Festivalnaya	5605
TSELT on the highway Enthusiasts	8500

: how to make an MRI of the knee joint

A source: http://sovets.net/11928-mrt-kolennogo-sustava.html

What the MRI of the knee joints shows is how the procedure is done: decoding and contraindications

Magnetic resonance imaging refers to non-invasive methods of investigation. In comparison with diagnostics, where electromagnetic radiation is involved, it is the safest.

MRI of the knee joint shows the most accurate picture due to the image of the structural components from all sides. The reliability of the results is from 95 to 100%.

Indications for MRI of knee joints

MRI of the knee joint is prescribed for various abnormalities. Deciphering MRI of damaged joints helps the doctor to establish the true cause of the problem without surgery and false assumptions. With the help of MRI, these knee joint ailments are diagnosed:

• frequent or severe pain;
• osteomyelitis - infection of bones;
• arthritis and arthrosis;
• bleeding or swelling;
• Osgood-Schlatter syndrome;
• study of the knee before surgery;
• the presence of an implant (to prevent abnormalities and observe the healing);
• accumulation of fluid;
• Hoff's disease;
• tumor;
• Baker's cyst;
• stretching, trauma, tearing of the meniscus, ligaments or tendons.

When is the procedure contraindicated?

Diagnosis of MRI of the knee joint is possible only if the patient can lie still, which is not always possible due to severe pain.

In addition, the procedure is impossible if the human body implanted metal implants or foreign bodies. The strength of the magnetic field causes the breakdown of pacemakers, cardinal stands, and tissues with iron implants are damaged.

As for metal seals, there may be a slight tingling sensation, but without noticeable harm.

Contraindications to MRI of tendons, joints, bones and tissues of the knee:

• The excess weight of the patient (more than 120 kg) can become a hindrance, and he can not fit in the tomograph;
• pregnancy and lactation (exceptions may be oncological disease);
• children under 6 years of age (the procedure is carried out only in special cases);
• kidney failure;
• claustrophobia (it is better to use open-type devices).

What does an MRI show?

With the help of MRI joints, it is possible not only to diagnose, but also to plan the optimal course of treatment. Often carried out and monitoring the process of recovery.

The study of the knee with MRI allows:

• visualize the condition of the bone parts (deformation, change of the joint gap due to arthrosis or arthritis, hematoma, fluid accumulation);
• take a picture of the meniscus, tendons and blood vessels for diagnosis or surgery;
• check the intra-articular structure of the tissues for the presence of formations.

The work of MRI is the effect of a magnetic field on hydrogen particles that contain the tissues of the human body. Each type of tissue particles are polarized in different ways, as a result of which the apparatus sees the knee joint as if from the inside. Therefore, any deviation from the anatomy will become noticeable.

In comparison with radiography, the picture of MRI records not only the bones, but also the meniscus, ligaments, tendons and cartilages.

Deciphering the MRI of the knee joint allows the doctor to establish the most accurate diagnosis.

Preparation and stages of MRI of knee joints

The tomography of the knee joint differs little from the procedure on other organs.

As such, there is no preparation, the only thing is to get rid of all metal objects: earrings, piercings, buttons, keys, etc.

Regarding the procedure with contrast - there is a ban on food intake six hours before her.

The duration of a conventional MRI is not more than 30 minutes, and if a contrast is introduced it will take additional time (another quarter of an hour).

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The most important condition is the property of the foot, so it is often fixed with straps.

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Otherwise, the slightest stirring of the limb will negatively affect the accuracy of the results.

The device is located in a separate room, the specialist is in the next, while communication takes place via radio and video communication. In the case of poor health of the patient, he can give a signal with the help of a special button, or simply informing about it aloud. Features of the survey:

• the patient lays down on a special retractable table, which enters the tomograph;
• with the MRI of the knee joint, the coil is located directly above it (see Fig. a photo);
• During the examination, the knee feels warm and breezes from the rotation of the apparatus;
• about 30 minutes the patient lies motionless, the procedure itself is painless and does not cause discomfort, except for the tomograph's noise;
• the procedure is completed by leaving the table from the device and telling the specialist that you can stand up.

Where can you do the research and how much does it cost?

MRI joints can be produced in almost every large city. Preference should be given to the medical center, where the diagnosis is carried out on modern devices, doctors already have experience and good recommendations.

It is most likely that a doctor who directs for examination will tell you where to make a tomogram qualitatively and at an optimal cost.

It is worth to be prepared for the fact that the procedure is paid and expensive.

Very rarely MRI of injured joints is done free of charge - if there is an insurance policy and if the patient is on inpatient treatment.

So how much will the patient's MRI of injured joints cost? The average cost of diagnostic services for one knee is 4-6 thousand rubles.

If the clinic practices work at night, most likely the procedure at night will cost an order of magnitude cheaper.

You can get a discount in some centers by advance registration on the site and at coupon design. The reduction in cost does not in any way affect the quality of the procedure, but it helps clinics to maintain their position among competitors.

Alternative diagnostic methods

The knee joint is one of the easily injured parts of the body. MRI of damaged joints is informative and safe, but in some cases it can not be performed.

Then the doctors use alternative types of diagnostics: computed tomography, radiography, arthroscopy. The degree of informativeness and security of each of the methods is different and depends on individual characteristics.

Sometimes a doctor needs enough laboratory tests, an X-ray and a description of the problem by the patient, but it happens that the diagnosis requires a number of procedures.

Ultrasound

Ultrasound is the most popular type of research due to safety, simplicity and economy. It has no contraindications and does not require preliminary preparation.

With the help of ultrasound, soft tissue of the knee, outer and inner ligaments, thickness, structure of bones and cartilage can be examined, and the presence of liquid can be checked.

Indications for ultrasound: trauma, pain in the knee, synovitis, swelling, obesity, limited movement, osteochondropathy, etc.

X-ray

Instead of an MRT of a damaged knee, most often X-ray images are used.

This kind of research is recommended to be done infrequently and only when necessary, since irradiation from it does not influence the human body in the best way.

With the help of roentgenography, diseases such as arthritis, cysts, sprains, tumors, cracks, etc. are confirmed.

Arthroscopy

The next alternative to MRI of an injured knee, ligaments, tendons or other problems is arthroscopy. It is an operation that involves inserting the camera through the incision.

Because of surgical intervention, arthroscopy is rarely resorted to with serious changes. The name of this study was obtained through an arthroscope, an instrument through which the specialist performs the procedure.

CT

On a multispiral tomograph without contrasting, the procedure lasts several minutes.

The most effective computer tomography has shown in the field of studying damaged bone structures and inflammatory processes.

CT scan is indicated for such problems as arthritis and osteochondrosis, abscesses and blood clots, tumors and metastases, for joint joint diagnosis, etc.

Whether it is possible to do or make MRI to the child?

MRI joints can be made to children, because it is safe, painless, and the images are as accurate as possible. They spend it for children from 7 years and older.

In rare cases, if necessary, the procedure is carried out to children in a medical sleep.

It is due to the fact that a small child can not lie still, which directly determines the result of the study.

Before the beginning of MRI of injured joints, the parent should talk with the child, explaining how and what will happen, about the noise produced by the device, and the painlessness of the procedure. The most important thing that a child must understand is that it is necessary to lie still. The corresponding instruction will be carried out by the technologist before the beginning of the tomography.

A source: https://UZImetod.ru/mrt/sustavi/mrt-kolennogo-sustava.html

What is the MRI of the knee joint, how do they show the MRI of the knee joint?

The knee joint is the most vulnerable in the human musculoskeletal system. That is why the diagnosis of knee injuries is an actual problem of traumatology.

An ideal method of visualizing the knee joint is magnetic resonance imaging (MRI). With it, you can diagnose various injuries, from ligament ruptures to bone fractures.

What is an MRI of the knee joint? How is tomography done? In these matters it is necessary to understand.

Anatomy of the knee joint

This compound is the largest in the human body. The bone bases of the knee are the femoral and tibia, as well as the patella.

The fibula has nothing to do with the joint. The surfaces of the bones forming the joint are covered with cartilage.

Thanks to it, the frictional force is reduced and ease of movement is ensured.

At the distal end of the femur, there are two condyles - lateral (smaller) and medial (larger). They have a rounded shape. The condyle is also at the proximal end of the tibia.

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They are relatively flat. Between the articulating surfaces there are menisci (external and internal) - crescent cartilages. They stabilize the knee, perform the role of shock absorber in it.

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In the knee joint, several ligaments are isolated, which ensure its stability:

• tibial (medial) collateral;
• peroneal (lateral) collateral;
• anterior cruciate;
• posterior cruciate.

The knee also includes tendons. Before considering the MRI of the knee joint, which it shows, it is worth noting that the tendon of the quadriceps muscle most often is damaged.

Its rupture is caused by an unexpected contraction of the muscle. Sometimes injuries of the dense and broad tendon or of the ootibial tract are diagnosed.

This structure is a strong lateral dynamic knee joint stabilizer.

Indications for MRI

Damage to the structures of the knee is observed quite often. The specialists are mainly addressed by young people who lead an active lifestyle and engage in sports. Before the help, doctors conduct magnetic resonance imaging. This is an accurate and reliable method of diagnosing various injuries.

The MRI of the knee joint has certain indications. They include:

• possible damage of collateral and cruciate ligaments;
• violation of the integrity of menisci or tendons;
• suspected fracture;
• pain in the knee;
• clarification of information obtained through radiography.

Contraindications to the study

"What will the MRI of the knee and foot show?" Is a question that all people can not answer, because this method of diagnosis has contraindications:

• the presence of an electrocardiostimulator (artificial pacemaker), whose function may be impaired due to research;
• The metal clips laid on the blood vessels, capable of shifting due to the action of the magnetic field;
• severe condition of the patient;
• claustrophobia;
• ferromagnetic implants, because of which the images are not quite correct, the results of the study are distorted;
• Pregnancy before the 12th week.

From this list it is necessary to single out claustrophobia. It is not an absolute contraindication. When a patient develops a fear of closed and tight spaces, sedative therapy or shallow anesthesia is used.

Conducting research

How an MRI of the knee joint is performed is an actual topic for people who are assigned this procedure.

So, before performing magnetic resonance imaging, the patient is offered to change into special clothes. You can stay in your things, if they do not have any metal buttons, lightning.

Before research also it is necessary to remove all ornaments, glasses, watches, remove keys from pockets, mobile phone.

The scan is performed when the patient is lying on his back. The human feet are placed in the device.

During the study, the injured leg is in the radio frequency coil. A healthy limb is parallel to it.

If there are suspicions of a tumor, then contrast magnetic resonance imaging is performed. Before the study, a special substance is injected into the patient's vein. It is necessary for the MRI of the knee joint to show a neoplasm.

MRI-anatomy of the knee joint

To make the correct diagnosis it is important to know that it will show the MRI of the knee joint in the norm. Here is the characteristic of the main components of the knee:

1. Normally, the anterior cruciate ligament on T2-VI and T1-VI appears as a black structure with a homogeneous low-intensity signal. The posterior cruciate ligament on images obtained as a result of MRI is visualized as a well-defined homogeneous black strand.
2. The marginal and tibial collateral ligaments normally give a homogeneous low-intensity signal to T2-VI and T1-VI.
3. Normal menisci on T2-VI and T1-VI are visualized in the form of homogeneously hypo-intensive structures (down to black ones) with central bundles of nerves and vessels. The contours of the meniscus are clear, the surface is uniform.
4. Tendons tend to have a very low signal. They may not even give it at all in images weighted by T1 and T2.
5. Articular cartilage is characterized by a low signal intensity at T2-VI and an average signal intensity at T1-VI.

Damage to ligaments

The most frequently injured ligament is the anterior cruciate. What will the MRI of the knee joint show if this structure is damaged? At break, the intensity of the signal within the ligament increases.

There may be a discontinuity or a lack of a normal signal.

With fresh injuries it is difficult to conclude on the results of MRI on the presence or absence of a rupture, because with a trauma the ligament increases in size (there is edema).

Injury of the collateral ligaments can be a complete rupture, partial tearing and an intra-connective rupture. If the tibial collateral ligament proves to be damaged, its thickening will be observed.

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Areas of signal increase will appear. This is what will show the MRI of the knee in the first day. In the future, these areas will disappear due to the absorption of excess fluid in the area of ​​injury by surrounding tissues.

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Disorders of the peroneal collateral ligament are diagnosed, as a rule, extremely rarely. Such traumas are combined with massive fractured fractures of the condyle of the tibia, loss of surrounding soft tissues.

Damage to meniscus

With injuries of these structures of the knee joint, the images obtained in the sagittal and coronal planes are considered the most informative. To assess what the MRI of the knee joint shows and to diagnose, doctors pay attention to the following characteristics:

• the size of the meniscus;
• their configuration, the nature of the signal;
• thickness and depth of the changed signal;
• localization of changes within the meniscus.

There are several degrees of meniscus damage:

1. The first degree is the expressed central degeneration. In the course of magnetic resonance imaging, changes are detected within the meniscus. They are manifested by the increased intensity of the signal.
2. The second degree is widespread central degeneration. Inside the meniscus, a wider area of ​​increased signal intensity is visualized.
3. The third degree is the breaking of the meniscus. Inside the meniscus, an increased intensity of the signal is detected. The contour of the intraarticular space is broken. Sometimes the position of fragments of the meniscus changes.

Damage to the tendons

The examination of the tendon of the knee joint is performed in the sagittal and axial planes. In the first one, the changes are more clearly visualized. The presence of lesions is confirmed if the following MR-signs are detected during magnetic resonance imaging:

• effusion to the tendon sheath (response to excessive overload) or swelling in the peritendinous synovial tissue (in those areas where there is no envelope);
• thickening or thinning of the tendon;
• signal change (in case of degenerative pathology in the central zone of the tendon, longitudinally directed radiance is observed, for which a hyperintense signal is characteristic for T1-VI);
• complete rupture of the tendon (a thickening of scraps of tendon with a changed signal intensity and a wavy outline is recorded).

Fractures of bones

One of the most frequent injuries is fractures of the bones that form the knee joint. With true fractures, a linear decrease in the signal with a rupture of the cortical bone is observed.

Sometimes fragments move. There may be hemarthrosis - a hemorrhage into the joint cavity. It appears on the T1-weighted image with a higher signal than the serous fluid.

Particular attention deserves chronic (chronic) fractures, because some people after receiving damage do not seek help from specialists. Such injuries are characterized by hypo-intensive, non-uniform changes with signs of sclerosis of fibrous tissue and bone marrow space.

It is worth considering and contusion lesions (bruises) of the bone. What does the knee MRI show in these cases? With these injuries, there is limited intraosseous edema.

It is characterized by a weak diffuse signal decrease on the T1-weighted image and an increase in its intensity on a T2-weighted image.

The pathological signal can persist for 3-10 months.

In conclusion, it should be noted that the knee joint is most often injured. One of the best methods for diagnosing various lesions is magnetic resonance imaging. It has several advantages.

That is why MRI of the knee joint is prescribed for children and adults.

A source: http://.ru/article/263573/chto-takoe-mrt-kolennogo-sustava-kak-delayut-chto-pokajet-mrt-kolennogo-sustava

Mgr of the knee joint

MRI examination (magnetic resonance imaging) is a diagnostic method based on the reflection of radio waves from the magnetic field of hydrogen atoms. The device emits radio waves and captures the magnetic "echo" reflected from the structures hidden behind the thickness of the tissues.

MRI is an effective method of diagnosing knee joint pathologies

Since a lot of hydrogen is contained in water, diagnostic MRI is effective in those environments where there is a lot of fluid in the cavities and soft tissues. Therefore, MR-tomography is successfully used in the study of joints. This method appeared a little more than forty years ago, but it is already widely used not only in large clinics, but also in district hospitals.

Functions and structure of the knee joint

This joint has a complex composition due to the importance of the functions it performs:

1. He maintains weight of the body while performing a variety of movements.
2. Provides cushioning for walking and running, protecting from shaking internal organs and the brain.
3. In the knee, it is possible to flex up to 128º (for gymnasts - to 150º). The knee joint is subjected to a load when walking and running
4. The bent knee is capable of producing rotational movements that alter the position of the shin.
5. When climbing up the stairs, the knee joint experiences a tremendous load, moving the body in space simultaneously up and forward.
6. The patella (knee cap) when flexing the shin serves as a support that takes the weight of the body.

This is the largest joint in the body. It includes:

• The articulation of four bones - the large and small tibia, femur and patella;
• menisci (cartilaginous discs), which are located between the heads of the articulating bones and serve as shock absorbers when moving;

The knee joint consists of bones and cartilaginous discs

• articular capsule - fibrous dense shell, to which 12 tendons of muscles participating in joint movements are attached to the outside;
• numerous ligaments that firmly hold the joints of the bones in the correct position;
• muscles;
• bags of the knee joint (their whole 6 in each knee) - "cases" of connective tissue for tendons, muscles and ligaments of the knee joint, delimiting these structures and protecting them from injuries;
• synovial fluid in the joint cavity, providing freedom of movement without friction.

Inside the knee is the synovial fluid

Advantages of MRI

So many structures, enclosed in a small volume of the joint capsule, complicates the x-ray diagnosis of the joint - the anatomical formations overlap each other in the image, making the image fuzzy. A layered image of the joint helps to avoid this.

MRI reflects the structure of the joint, outlining the precise contours of ligaments and tendons, muscles, cartilage and bones.

This method has a distinct advantage over the method of computed tomography (CT), which consists in the fact that during MRI harmful x-ray radiation is not used, and magnetic resonance imaging is allowed many times without harm for health.

The knee joint very often needs to be inspected, because it is regularly influenced by many negative factors:

The knee joint is regularly affected by negative factors

• excessive sports and household loads;
• hormonal disorders;
• salt deposits;
• diabetes;
• rheumatism;
• tuberculosis.

Arthrosis develops (dystrophic changes in structures) or arthritis (inflammatory diseases). With inflammation, soft tissues swell, their contours can be considered only in layered tomography.

Using MRI can diagnose arthritis

Using the MR-tomograph, a three-dimensional model of the joint under investigation is made on the image, inside which the only large constituent elements, but also the vasculature, all branching of nerves and tumors even with minor sizes.

Indications for the appointment of Mgr of the knee joint

Tomographic examination of the knee joint is informative in the following cases:

• sensation of pain of varying intensity in the joint;
• edema or hematoma in the knee region;
• knee injury;
• suspicion of swelling;

MRI is prescribed for suspected osteochondropathy of the knee

• suspicion of infection in the joint;
• osteochondropathy;
• deforming osteoarthritis (DOA);
• bursitis, synovitis, tendonitis (inflammation of the joint bag and ligaments);
• planning of surgical intervention;
• follow-up after surgery.

MRI is indicated for meniscus rupture

How do the MtT knee joint

If you want to make the Mgr knee joint, no preliminary training is required.

At the appointed time, the patient comes to the office with the direction and results of earlier analyzes related to the pathology of the knee joint.

In a separate room, the patient leaves all metal objects and electronic devices: jewelry; clock; removable hearing aids and dentures, clothing with metal elements.

Contraindications to the appointment of MRI are:

1. The presence of implants, cardioverters, pacemakers, insulin pumps, middle ear endoprostheses, braces and crowns, but the titanium products do not interfere with the MRI. Patients with implants of the middle ear MRI held
2. If an MRI is planned with contrasting, then the contraindication will be inflammatory urinary tract diseases and kidney failure, because the contrast agent is excreted with urine.
3. Pregnancy and breastfeeding.
4. Cardiovascular failure.
5. Claustrophobia is the fear of confined spaces.

MRI is contraindicated during breastfeeding

How is the study going?

The patient is offered to go to the room where the tomograph is located. There he is with the help of staff located on a sliding table.

When an MRI is performed on the left knee or right knee, the leg is fixed with straps to ensure immobility for 20 to 50 minutes while the test is being performed.

With severe pain, which does not allow the patient to lie still, before the procedure he is given pain medications.

The table with the patient is pushed into the camera of the device. The scanner starts to spin, producing a rather strong hum.

Some devices are equipped with a loudspeaker for playing music and even a TV to reduce the patient's nervous tension.

The doctor supports the patient with an audio connection. Provides lighting and ventilation.

To carry out the MtT of the knee joint, the limb being examined is fixed with straps

How is contrasting

To enhance magnetic resonance in the joint tissues, a contrast mixture containing the gadolinium substance is injected intravenously before the test. This makes it possible to better examine the vasculature to small capillaries. In this way they discover:

• uneven circulation of blood;
• zones of inflammation;
• bleeding;
• hematomas;
• tumors and their nature.

The introduction of contrast allows a better view of the area of ​​inflammation

If a joint is planned to be contrasted, the patient is forbidden to take food and drink for 6 hours before the procedure.

Deciphering the Mt of the Knee Joint

The diagnosis of MtT of the knee joint presupposes the presence of a good specialist qualification.

The complex configuration of the articular elements, their large number and variety of tissue structures create difficulties in deciphering the image of the Mt of the knee joint.

Detailed interpretation is carried out using specific schemes and protocols. Written examination results are prepared 1-2 hours. In conclusion, the doctor gives a description:

Decipherment of Mt of the knee joint should be carried out by an experienced specialist

• the state of the vessels and their walls;
• dystrophic and inflammatory changes;
• the volume of synovial fluid;
• detected neoplasm;
• meniscuses.

What the MRI of the Meniscus shows

Most often, an MRI of the knee joint meniscus is performed, the snapshot can show the degree of its destruction.

A picture of the MRI shows the degree of destruction of the meniscus

The meniscus consists of a dense cartilaginous tissue.

When moving the legs, it provides a smooth movement of bones in different directions.

When excessive load or sudden movements of the meniscus is damaged, there is severe pain and difficulty mobility. The weight of the patient may also be a burden.

On the tomogram, the meniscus is defined as a dark band, and all its lesions are identified as lighter areas. The meniscus is not contrasted.

Decoding of the MRI of the meniscus:

1. When it breaks, the shape or image changes completely. The meniscus lesions are shown in the picture as bright bands
2. When a crack is formed, the structure of the meniscus changes.
3. If there are abnormalities in the cartilage tissues, there is no signal outside the damage zone.

The conclusion of the Mt of the knee joint (pictures and their description) is given to the patient on hand or sent by e-mail.

On how the Mt of the knee joint is performed, see in the video:

A source: http://bolezni.com/spravochnik-issledovaniya/provedenie-mrt-kolennogo-sustava.html

Mgr of the knee joint - indications for diagnosis, how to prepare, the cost of the procedure, video

MRI of the knee joints is a unique procedure that involves obtaining a detailed image of a variety of structures inside and outside the test element (tendons, ligaments, adipose tissue, cartilage, blood vessels, muscles and etc.).

This is not an invasive diagnostic medical method that allows doctors to diagnose, treat various diseases. MRI provides more complete information, in contrast to X-rays, ultrasound, computed tomography.

For this procedure, strong magnetic radiation and radio waves are used.

Indications for MRI of the knee joint

Diseases of the musculoskeletal system can be provoked by stretching, trauma, exposure to high humidity, low temperature, overly intense physical exertion.

Infectious lesions can cause inflammation of connective tissues and joints. MRI of the knee joints reveals the disease at different stages.

Indications for the procedure are as follows:

• Damage to the meniscus, cartilage, tendons, ligaments.
• Weakness, pain in the knee, bleeding, swelling in the tissues of the joint, around it.
• Sports injuries of the knee (tears, sprains, tendons).
• Degenerative diseases of joints (osteoarthritis).
• Fractures of bones that are not visible during X-rays and other imaging techniques.
• Infections (osteomyelitis).
• Accumulation of liquid.
• Sensation of instability.
• Tumors (metastases, primary tumors) with the involvement of soft, bone tissue.
• Pain, knee cup injuries.
• Decreased volume of knee movements.
• Complications that may be associated with implanted surgical devices.
• Blocking of the knee joint.
• Osteochondrosis, osteomyelitis.
• Bursitis, arthritis.
• Surgery of ligaments.
• Baker's cyst.
• Pathological changes inside the bone (gout).
• Pinched tendons, nerve endings.
• To determine the need for arthroscopy or other surgical procedures.

MRI of the knee joints in most cases is used in traumatology, orthopedics. In addition, magnetic resonance imaging is prescribed for the diagnosis of rheumatic joint damage.

The decision on the need for an MRI is made by the treating trauma doctor. Preliminary, ultrasound or radiography can be prescribed.

Study with contrasting is carried out for the detection of inflammatory diseases, tumors.

What Magnetic Resonance Therapy Reveals

MRI photos accurately reflect the changes of any character in the state, the structure of individual parts. Signs of trauma, independent diseases are determined. The photo shows different parts of the knee:

• Cartilage - the picture reflects defects, cracks.
• Bone tissue - the calyx of the knee, her bruises, swelling, infection, fractures, cysts are seen.
• Meniscus - the images clearly show the medial and lateral menisci, harmed them.
• Bundles and tendons - inner and outer collateral, posterior and anterior cruciate ligaments, tendons of the patella, quadriceps, their injuries, injuries.

How to prepare in the procedure

The study is conducted without any special preparation. The patient should remove all metal objects from the body, clothing with metal elements.

In the presence of pacemakers, implants, cardioverters, insulin pumps MRI of the knee is not carried out. If individual parts of the implants, prostheses are made of titanium, then this will not prevent tomography.

Hearing aids, other electronic devices must be removed. The general sequence of training is as follows:

• The patient talks with the doctor, fills in the required documents.
• A man takes off his clothes, except for linen, puts them on disposable in a changing room.
• The laboratory assistant checks whether the patient has left metal, ferromagnetic objects.
• The patient's weight is determined.
• The device inserts a coil, the patient is placed on the platform.
• The client is given explanations for the further course of the procedure. A pear is given out to give an alarm signal, its operation is checked.
• The laboratory assistant brings the patient into the tunnel, making sure that he is comfortable.

How much does an MRI of the knee

This study can not be called cheap. Prices vary in different regions.

However, the high price justifies itself, given the informative nature of magnetic resonance imaging, the complex anatomy of the knee.

In the table below you will find out where you can go through the research and get acquainted with the cost of the procedure in different cities of Russia.

Name of the clinic, address	price, rub.
Medical center "Stolitsa Moscow, Bolshaya Vlasyevsky lane, d. 9	3000
Medical center "Prima Medica Moscow, Academician Chelomey, d. 10B	4500
MRI-center, Moscow, Kurkinskoye highway, d. 30	4950
Energo, St. Petersburg, Engels, etc. 33, building. 1	6000
Center for Medical Diagnostics "Petrogradsky St. Petersburg, st. X-rays, etc. 5	4000
Diagnostic +, St. Petersburg, st. Zakharevskaya, 14	3500
OOO Tomography, Ekaterinburg, March 8, 2012	3700
Center for MRI Diagnostics of LDTS MiBS, Ekaterinburg, Baidukova 63	3500
Medical center "Paracelsus Ekaterinburg, Vikulova, 33	6300
Novosibirsk Institute "International Tomography Center SB RAS, Novosibirsk, Institutskaya, 3A	3000
MRI Expert, Novosibirsk, Yakushev, 41	3500
Tomography Center "EuroMed Clinic Novosibirsk, Red Avenue, 200	3500

Note: These data were obtained by randomly analyzing the prices of clinics in Moscow, St. Petersburg, Novosibirsk, and Yekaterinburg. The information is not promotional and may become obsolete at the time of viewing.

Where it is possible to make MRT

In Russia, especially in large cities, a large number of medical centers are located, which offer customers such a service. To make MRT knee in Moscow, St.-Petersburg you can to the addresses indicated in the table.

Name of the clinic	Address
Medical Center "Petrovsky Gate"	in Moscow, 1-st Kolobovsky lane, 4
Oncological center "Sofia"	in Moscow, 2-nd Tverskoy-Yamskaya Pereulok, 10
MRT Center "CityScan"	in Moscow, 1-st passage Perov Polya, d. 9, p. 1
MRI 24	in Moscow, Ostrovityanova St. 1, p. 9
The clinic "Promed Plus"	in St. Petersburg, Boulevard of the Workers, d. 18, building. 5
Diagnosis of "Ramsey"	in St. Petersburg, st. Chapaeva, 5
Center for Clinical Neurology	in St. Petersburg, st. Lenskaya, 19, building 1

Note: These data were obtained by randomly analyzing the addresses of clinics in Moscow, St. Petersburg. The information is not promotional and may become obsolete at the time of viewing.

Contraindications

Magnetic resonance imaging shows almost all diseases, but its use is not justified in all cases.

There are reasons, in connection with which medical examination is contraindicated - the presence in the patient's body of medical devices, metal parts.

MRI of knee joints is not desirable for people with renal insufficiency, claustrophobia, patients who can not remain immobile for a long time.

Alternative methods of research

The knee joint is considered to be the most complex of all that are in the human body, according to biodynamic, biological properties, anatomical structure.

He is often prone to injury due to the number of functions performed by him, the open position. Clinical examination is the basis for setting the right diagnosis.

In some cases, the final diagnosis of existing knee injuries can be carried out only under stationary conditions using additional research methods.

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An x-ray is obtained by radiating a person's body with a special radiation. It defines traumatic, deformational pathologies of different nature of the knee region.

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An x-ray of the knee joint is prescribed in case of damage to the ligamentous apparatus, trauma to the patella, meniscus, fractures of the condyles, bone fractures, dislocations, subluxation of the joints.

With the help of an X-ray, the following diseases and injuries are revealed: indentation, fracture, bone fracture, rupture, sprain, sprains, arthrosis, tumors, rheumatoid arthritis, cysts, osteomyelitis.

Ultrasonography

Ultrasound or ultrasound is widely used in rheumatology. For effective and timely treatment of articular pathology, it is very important to visualize parts of the joints.

Ultrasound of the knee joint is absolutely safe, painless, passes quickly, and its cost is inexpensive, unlike other diagnostic methods.

Ultrasound examination does not require preliminary preparation, has no contraindications, allows to assess the state of soft tissues, the structure and thickness of articular cartilage.

The ultrasound of the knee joint is prescribed for chronic, acute pain, any bruise, trauma, swelling, redness of the joint, sensation of stiffness, clicks, inflammation, suspected degenerative-dystrophic process, bursitis, synovitis, hemarthrosis, fractures.

Arthroscopy

Arthroscopy is a surgical operation, during which knots are made on the knee, through them Inside the chamber, tools for manipulating the restoration of joint functions.

This procedure is recommended for damage or rupture of the posterior and anterior cruciate ligament, meniscus rupture, knee displacement calyx, inflammation of the synovial pouch of the joint, removal of Baker's cyst, small fragments of cartilage in the knee joint, fracture of bones, injuries.

The operation is performed under spinal anesthesia. The lower limb is fixed in a special device. The procedure begins with two punctures in the knee area, through which surgical instruments and an arthroscope are inserted.

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The latter is a metal tube with lenses for viewing the internal device of the joint. The location of the incisions prevents damage to blood vessels and nerves.

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A saline solution is injected through the pump, which flushes the damaged tissue to improve the vision. After the operation, stitches are made.

CT scan

Control over the condition of the knee joint is considered an important means of preventing diseases that are easy to stop on time with proper treatment.

Computed tomography is one of the leading methods of diagnosing the ailments of a given area of ​​the body. The tomograph makes it possible to diagnose: arthritis, trauma, osteochondrosis, joint joint condition, oncological processes.

In this procedure, soft tissues surrounding the knee, ligaments, tendons are poorly visible.

MRI is safe for the patient. During the procedure, the patient lies on his back on a special mobile platform. The joint is fixed motionless for scanning.

The effect of waves with magnetic resonance imaging is directed strictly on the knee, and therefore there are practically no contraindications. Before the procedure, the presence of magnetic properties is checked.

After the study, the patient receives 3D graphics on the disc, a snapshot, a transcript. To get visual information about what an MRI is, watch the video.

A source: http://vrachmedik.ru/32-mrt-kolennogo-sustava.html