CT and MRI abdominal cavity. What is better. MRI or CT abdominal cavity: differences

Does the doctor sends you to some of these studies, maybe even after computed tomography, you were sent to make magnetic resonance tomography? What is better than MRI or CT? MRI is significantly more expensive than CT, perhaps it is better, or is it too expensive for you and can be limited to a simple CT?

Let's figure out what each procedure represents separately.

Computed tomography (CT). This method is based on X-ray radiation. The human body passes through the apparatus where he made a lot of layered pictures. They are processed by a powerful computer using special programs. Thanks to this, the doctor can see the radiograph of the body of interest in any projection, and even layered sections.

Magnetic-resonance tomography is a study in many ways similar to CT: the human body is also carried through the device, the same sections are obtained.

But the principle of operation is another! It does not use harmful X-rays, and only a magnetic field. In essence, the device is a pipe in which he hidden powerful electromagnetwhich generates a pulsating magnetic field. The hydrogen atoms are included in the resonance with the device and send signals that fix the sensors.

What is the difference between CT from MTP and what is better

To say unequivocally, it is better than CT or MRI is impossible. Computed tomography is based on X-ray radiation. These rays are delayed with dense tissues (such as bones) and freely pass through soft tissues and liquids. But here you can slightly "schitrate" by entering the patient an intravenously contrasting substance based on iodine, which delays X-rays well. Different fabrics accumulate contrast in different ways, and as the formation contrasts, it is possible to judge its blood supply. Various penetability of the tissue x-ray allows you to judge the density and structure of the object. Best of all the bones are visualized, if you are interested in exactly how they are, then computed tomography will be undoubtedly the best choice.

Magnetic resonance therapy is based on signals obtained from hydrogen atoms, which are most in water and fats. Such a study more clearly visualizes various soft formations, makes it possible to judge their contours and borders, shows well vessels, but gives little information about the density and structure of the tissue. MRI is best suited for the study of soft tissues, the recognition of the tumor process in the early stages will help to learn about the state of the organism vessels.

What study is better for brain

In computed tomography of the brain, the bones of the skull and pathological tight inclusions in the brain are well visualized (for example calcinates).

CT head more effectively with:

On MRI, you can clearly consider the structure of the brain, the path of the outflow of the liquor and the vessels. MRI brain shown at:

Suspicious of the tumor process in the brain is clearly seen a soft pathological formation, you can estimate the clarity of its contours.
Hemorrhage in the brain - blood is a liquid and it is clearly visible, you can evaluate the extensity of hemorrhage and determine the burst vessel.
Diseases of blood vessels, such as malformation, aneucism, anomaly for the development of vessels, as the vessels are best visible on MRI.
Multiple sclerosis.

What research is better for the spine

The spine consists of vertebrals, intervertebral discs and spinal cord. You will suit CT if you want to explore the vertebrae in case of spinal injuries, vertebral fractures. For diseases, when the density of bone tissues changes: osteoporosis, osteochondrosis.

MRI will help to deal with the problem of pain in the back. The back may be sick if you have a protrusion or intervertebral hernia, or the infringement of spinal nerve roots (at the same time, it may also squeeze or a nonsense limb), a tumor, squeezing spinal cord. The spinal cord is investigated with paralymps that may arise in inflammatory diseases and during injury.

What to choose CT or MRI for the abdominal cavity

For abdominal cavity Both methods may be equally informative, for example, with concretions in the bile ducts and the bustling bubble; for various diseases kidney. But CT is preferable for urolithiasis, as the kidney stones are dense and well absorbed X-rays and it is clearly visible, but there are practically no water in them and you can not see them at all. Various intraperous bleeding (fresh blood is clearly visible on CT).

MRI preferably with the volumetric formations of the pancreas: cysts, abscesses, tumors, acute and chronic pancreatitis, portal hypertension, with postoperative complications: interheteral abscesses, adhesive diseases, foreign body.

MRI informative when studying the intestine for any tumors, the causes of obstruction. Also, MRI is needed to diagnose blood circulation disorders in the abdominal vessels, organs of organs, aneurysm and aortic bundle.

What is better to choose to liver CT or MRI

In the case of liver disease, MRI will be the most successful study. With it, it is possible to clearly visualize the neoplasms in the liver and their contours be it abscess, cyst or cancer with metastases.

For parenchymal diseases, it helps to estimate the size of the liver, the condition of bile ducts. Find developing portal hypertension.

The CT is most informative in the case of diseases associated with the melting of bone tissue (osteoporosis, osteomyelitis), or the growth of bone tissue (osteochondrosis, defarterosis). Damage to bone structures with a tumor process. Traumatic skeletal damage. Diseases of the abdominal organs, lungs, small pelvis organs, only with contrast.

MRI the best choice With tumors of adipose tissue, muscles, abdominal cavities and small pelvis organs. Assessment of the state of the structures of the head and spinal cord. The state of blood vessels of the whole body. Study of intervertebral discs and joints.

Contraindications for CT and MRI

You also need to know the contraindications to research that can be inclined to another type of diagnosis.

Contraindications for CT:

Pregnancy.
Allergies to drugs containing iodine (used in contrasting tomography).

Contraindications for MRI:

Common contraindications

Body mass more than 150 kg.
Motor excitement of the patient.

Preparation for procedures

For MRI, no special preparations are needed, you only need to remove all the decorations and wear clothes without metal elements.

For CT, you need the following preparations. During the day to research, it is necessary to exclude products that increase gas formation (products from flour, juices). In the morning, there is an enema for the procedure for cleansing the intestines, women in the vagina are injected with a swab. CT begin with a complete bladder.

In both cases, if the patient is afraid to carry out the procedure and cannot lie safely in the apparatus, it is offered to drink sedative. The procedure is carried out under anesthesia to small and infant children, a anesthesiologist is watching the patient all the time.

It is necessary to know that in an isolated CT, nor MRI cannot be diagnosed, and it is not necessary to make tomography for the sake of "unusual pictures" of your body. The doctor sends to all procedures only after a comprehensive inspection, the collection of anamnesis, listening to your complaints. The attending physician, together with a radical physician, chooses optimal tomography, be it CT or MRI. Now both methods are sufficiently available, they can be logged in directly from your computer on our website.

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To date, there are harmless and informative methods for studying the abdominal organs, which determine the cause of pain of various nature in the human body.

Some diseases have similar symptoms, and the incorrect diagnosis slows down the treatment. Therefore, such diagnostic methods, as MRI and CT internal organs, are necessary in the development of modern medicine.

The study of the magnetic resonance method will help determine the presence of pathological processes in various organs or tissues. The specialist records the changes that are taking place, which are visible in the pictures at MRI and puts the final diagnosis. With the help of magnetic resonance tomography, it is possible to identify many diseases in the early stages.

During the study of the liver, you can see tumor formations in its parenchyma, inflammation processes, as well as the initial stage of the zirrosis.
With MRI of biliary tract and liver, stones are revealed in ducts.
He identifies tumor formations of a benign and malignant nature in the pancreas, their localization, also effectively MRI in the diagnosis of pancreatitis (acute and chronic).
During the research of the spleen, you can reveal the formation of cyst, tumor processes.
MRI is prescribed and when suspected of inflection legs of the spleen.
Pathological processes in the kidneys and adrenal glands.

What can be seen when studying CT abdominal cavity?

This survey is widely used in modern medicine. With the help of CT, you can view any body of the abdominal cavity, lymph nodes and vessels that occurred pathological processes.

Computed tomography will be able to show the slightest changes in the tissues of internal organs due to the three-dimensional image. It is worth noting that the decoding of the results takes about two hours, contributes to this high-speed scanning.

The results of the CT will allow to determine the location of the organs, their size, it will help to identify new inflammatory processes, various changes in the work of the internal organs of the abdominal cavity. Therefore, computed tomography is the most effective method Surveys to determine the development of malignant tumor processes.

CT is based on X-ray rays, with which the patient's body scanning is scanning, then the program processes the results. In order for each body to be examined separately, a special contrast agent is introduced, which after 24 hours fully will be completely out of the body.

What are the differences in MRI and CT in the examination of the internal organs?

Initially, it is necessary to note the difference between the devices themselves on the principle of operation, and on the effects on the human body. As it was written above, CT is based on X-ray radiation, but their concentration is insignificant.

After scanning the abdominal cavity using special programs, photographs of organs appear in all possible projections or the required area of \u200b\u200bthe specified organ. CT allows you to detect the starting pathological processes, tumor processes (location, size and structure) in the abdominal organs.

MRI apparatus is based on the emission of electromagnetic signals that does not have negative impact on the human body. This technique consists in the reaction of the human body (or rather atoms of hydrogen, which are contained in organs) on the radiation of electromagnetic signals. Next, the results are displayed on the monitor in the form of images of the surveyed area.

What are the differences between MRI and CT on informativeness?

Basically, these two studies are practically equally informative for internal organs. But based on the differences of the apparatuses themselves, and more precisely in their work, such differences between MRI and CT can be distinguished:

During CT, it is possible to better determine solid formations, as well as the X-ray tissue density, which has the property to change against the background of various diseases.
At MRI, it is better to determine the various processes of inflammation, we investigate soft tissues, as well as changes in pathological nature in cartilage tissues.

Decide unambiguously, which of the diagnostic methods is better, it is very difficult. MRI and CT abdominal cavity, where there are vital organs with different consistency, location and functionality are suitable diagnostic methods, especially when the contrast agent is introduced.

Very important study, primarily CT and MRI are to identify tumor processes. Therefore, the diagnostic method for a particular patient determines the attending specialist, because only he knows which of the authorities should be explored for the ruling of a correct diagnosis.

CT and MRI do not apply as independent research methods that can give complete one hundred percent information. Such research is carried out comprehensively after receiving the direction from the attending specialist. Usually prescribed MRI and CT of the abdominal organs after ultrasound diagnostics (ultrasound).

What is the difference between MRI, CT and ultrasound?

The ultrasound apparatus uses the methods of ultrasonic waves penetrating through the underlying organ. Very often, ultrasound use in the diagnosis of inflammatory processes of the digestive system organs, genital organs in women, urinary system, endocrine glands, as well as with deviations in the work of the heart and blood vessels. But when examining the ultrasound stomach is an ineffective method, since it is impossible to study the state of this organ with ultrasound.

Using MRI, you can determine the exact diagnosis that was questioned with other methods of examination. The most important advantage of MRI is to identify tumor education in the earliest stages in the abdominal organs. Therefore, it is possible to note the fact that MRI is the most informative method of diagnosis in comparison with the ultrasound.

It is also worth noting the advantage of MRI as the ability to identify signs of the inflamed appendix, to diagnose the stomach, as well as the ability to evaluate tumor germinations, unlike ultrasound. But for greater information and its comparison, the specialist may appoint an ultrasound and MRI in the complex.

Comparing CT from the ultrasound, it is also possible to note that computed tomography is more informative for the study of tumor processes, their structure and sizes, for this is used a contrast agent. But ultrasound is more safe waywhich does not irradiate the body.

Which of the methods of examination of the abdominal cavity is better and preferable to determine the attending specialist individually for each patient. After all, each of them, MRI and CT have their own positive traits and are conducted depending on the testimony. And they are often used in the complex.

- non-invasive diagnostic techniques used to recognize the pathological processes of abdominal organs and retroperitoneal space. Both options are practiced when the usual ultrasound options, X-rays do not provide complete information about the patient's state. These diagnostic options make it possible a layer-by-country study of the organ of interest under the desired angle. The main differences in the methods are in principle work and impact on the human body. It is due to the similar results in patients there are doubts about choosing the option.

Modern methods have significantly improved the quality of medical care - the doctors correctly determine the pathology of the organs in the abdominal space, it is more precisely diagnosed and prescribed timely treatment. In addition to ultrasound and x-ray diagnostics, doctors recommend other research methods.

Computer diagnostics and magnetic resonant tomography - extremely safe surveillance options for patient who do not require careful preparation.

Computer tomograph gets an image using X-ray radiation, although its concentration is minimal and is not dangerous for the studied.

The difference between MRI is that information is obtained using electromagnetic waves. In both cases, images are volumetric, which makes it possible to consider the most minor pathologies.

By time CT, the procedure does not exceed 5 minutes, the magnetic resonance examination lasts within half an hour, sometimes longer.

The research result is displayed on the monitor in the form of 3D images, which can be subsequently written on the digital media and provide the doctor. The doctor studies the sections of the body, which will significantly increase the accuracy of the examination.

Areas of use

The diagnosis helps to identify many violations in the abdominal organs and the retroperitoneal space. Best option It will be possible to provide the choice of research to the doctor. Based on the symptoms and indications of other studies, the doctor selects the optimal option for the patient.

What shows CT.

Most often, multispirate computed tomography (MSCT) is advised to inspect the hollow organs: stomach, intestines, gallbladder. Diagnose such a method of education in the organs of the urogenital system. Reveal internal bleeding. Assess the growth of the inflammatory process in the internal organs. CT helps to diagnose volumetric neoplasms: cysts, polyps, stones. With this method, the pathology of the vessels of the abdominal cavity, sharp and chronic liver damage are detected: cirrhosis, hepatitis.

With the use of contrast, the state of the veins and arteries of the peritoneum are studying.

What MRI shows

MRI makes it possible to determine the malignant tumor at an early stage and distinguish it from a benign neoplasm, to identify circulatory disorders in the liver, spleen. With the help of research, specialists clarify the location of the cyst and hematomas, evaluate the spread of metastases in cancerous disease. The procedure allows for the possibility of diagnosing diffuse disease internal organs and inflammation, abscesses in peritoneum, acute or chronic pancreatitis.

Exploring the testimony of tomograph, it is possible to see the violation of the structure of the organs, the condition of the blood flow of the kidneys, the pancreas neoplasms.

Strong regular abdominal pain;
Cholelithiasis;
Cysts of abdominal organs;
Suspicion of metastases.

Preparation for research

If in the case of an MRI diet is desirable, then the CT implies strong diet With the exception of oily, heavy food. It is not allowed to use strong tea, coffee, flour products of nuts and sweets. It is recommended to use a non-fat fish cooked for a pair, boiled vegetables, liquid soups, gallery cookies. Final feeding is carried out 8 hours before the procedure.

On the preparatory Stage The doctor prescribes Smekt, lactiform to reduce gas formation. Sometimes laxatives are prescribed medications For intestinal emptying to improve the visualization of the abdominal organs.

Often, before carrying out a computer tomography of the abdominal organs, the doctor has the right to assign additional diagnostics. For example, a general blood test or an ultrasound study.

Special preparation for KT kidney without contrasting is not required. Urinary bubble diagnostics requires reception 5 hours before the procedure.

Contraindications of CT and MRI

In both diagnostic methods, there are contraindications. Methods are not recommended to people with claustrophobia - the procedure in the tunnel of the apparatus causes panic in a patient with an established phobia.

Contraindications to KT.

Computer examination is not carried out by pregnant women, even a small dose of irradiation can be dangerous for the fetus. Mothers, nursing breasts. Persons who passed X-ray research in recent times are not recommended by CT - the overaffect of irradiation can lead to irreversible consequences.

Contraindications K. this method Research serve:

malignant tumor from plasma cells;
syndrome of violation of all kidney functions;
decompensated diabetes;
afraid of closed spaces;
body weight above 120 kg;
acceptance of adrenolyts;
children's age up to 14 years.

Children's age up to 14 years - relative contraindication. If a alternative option There were no surveys, children from 7 years are allowed to diagnose.

The use of contrast drugs based on iodine to persons with liver and kidney disease, as well as thyrotoxicosis is prohibited in CT. Gypsum in the field of diagnostics is considered to be contraindicated.

Contraindications to MRI.

Magnetic resonance imaging is strictly contraindicated to people with implants made of metal. When preparing it is necessary to remove everything hardware: Piercing, rings, removable dentures.

Contraindicated procedure under presence:

electrocardiomimulants;
insulin pump implant;
a prosthesis that allows you to compensate for the loss of hearing;
pregnancy in the first trimester;
psychosomatic diseases.

In MRI, the use of contrast based on gadolinium with renal failure is prohibited.

In both cases, the doctor must check the presence of an allergic reaction to a contrast agent.

Which method to choose

If the diagnostic institution has access to both ways to research, it is necessary to choose, based on the characteristics of the disease and the presence of contraindications. A number of diseases are perfectly diagnosed by all methods, and the result will be accurate. Then the patient chooses based on financial capabilities and personal considerations.

There are known diseases that are diagnosed by the only technique. In suspected internal bleeding caused by injury, preferably CT. Acute intestinal obstruction is better visualized in a computer study.

With suspected cancer, inflammatory processes will help the resonant method.

As the other research techniques, computed tomography and magnetic resonance diagnostics have a number of shortcomings. Both methods require patient immobility during a clear shot. With MRI, it is impossible to visualize bone tissue. CT is contraindicated to children.

It is difficult to determine which research method is better - computed tomography or magnetic resonance research. If MRI is informative in the plane of the neoplasms, the CT better shows the hollow organ. At the cost of CT below, but has a number of contraindications, not everyone is available. If the patient independently cannot determine the necessary diagnosis for itself, this will certainly help the attending physician, analyzing information about chronic diseases, symptoms, data of previous studies.

Modern medicine is developed at a fairly high level. Today exists a large number of Diagnostic methods allowing you to make an accurate diagnosis and identify pathology at an early stage. Some of these techniques are CT and MRI. These are methods of instrumental diagnostics that allow you to look in the "inside" of the human body and identify all changes in the bones, tissues and internal organs. Often these two ways are compared with each other. However, they differ significantly from each other. And if so, it is worth considering these differences and determine, and what is better - MRI or CT?

MRI (magnetic resonance imaging) is the method of instrumental diagnosis of tissues and internal organs carried out with the help of nuclear magnetic resonance. The device allows you to get a high-quality image of the body under study and trace all the changes that occurred in it.

This diagnostic method was opened in 1973. It is referred to non-invasive methods of examination.

MRI are prescribed at:

strokes;
the need to study the organs of a small pelvis;
identifying diseases and pathologies of the circulatory system of the human body;
the study of trachea and esophagus.

MRI is contraindicated in the presence of a patient in the body:

pacemaker or other electronic devices;
metal implants in the field of the object under study;
ferromagnetic fragments;
ferromagnetic device Ilizarova.

Diagnostics cannot be carried out with a patient's weight over 110 kg. This is due to the design features of the diagnostic apparatus. With large dimensions, a person simply does not fit inside the device and the diagnosis will be impossible.

It is worth paying attention to the fact that metal objects distort the image, which can serve as an incorrect diagnosis. Therefore, before starting the procedure, decorations and other metal accessories should be removed.

Magnetic resonance tomography can also be contraindicated in the following cases:

in heart failure;
inadequate behavior of the patient and his mental disorders;
claustrophobia (in some cases, the doctor can give a sedative preparation to calm the patient);
on the first trimester of pregnancy;
in the presence of tattoos, if in the coloring substance is contained metal connections (There is a risk of burns);
receiving nerve stimulants;
in the presence of insulin pumps in the body.

The above limitations are not always like that. In vital cases, even if there is a doctor, the doctor may assign an MRI patient.

What is kt.

Computed tomography is non-invasive methods of modern tool diagnosis. When it does not contact with the surface of the patient's skin surface.

This method is based on X-ray action. It is carried out with the help of a special apparatus, which, rotating around the human body, makes a series of consecutive snapshots. After that, the obtained images are processed on the computer to obtain detailed information and further decryption by the doctor.

CT appoints research:

organs of the abdominal cavity and kidneys;
respiratory system;
bone system.

In addition, computed tomography is most often prescribed to determine the exact location of injuries.

CT is contraindicated to carry out in the following cases:

during pregnancy (this method of diagnostics can have a negative impact on the development of the fetus);
in the presence of plaster in the zone of diagnostic research;
during lactation;
if several similar studies have already been held;
with renal failure.

Tomography is also contraindicated to small children under the age of three.

Main differences

In order to obtain a detailed picture of the difference between the two diagnostic research methods, it is better to get acquainted with the following table:

	Kt.	MRI
Application	Used to receive clinical picture In case of problems with bones, light and chest.	Used to estimate the functional state of internal organs and soft tissues. The method is widely used to detect tumors and spinal cord pathologies.
Principle of operation	X-rays	Magnetic field
Duration of the procedure	As a rule, does not exceed 5 minutes	On average, the diagnostic procedure lasts 30 minutes
Safety	The method is safe. However, with long-term exposure of X-ray radiation, the organism is irradiated.	Fully safe for human health and well-being.
Restrictions	Patients with weight of about 200 kg may not fit in the scanning device.	The method is contraindicated in patients who have metal implants and electronic devices in the body.

What is better - MRI or CT

Click to zoom

Unambiguous answer to this question, unfortunately, no. There are a number of diseases, for the diagnosis of which both methods are equally well. In this case, the result obtained will be accurate and informative.

However, there are certain diseases and pathology, to diagnose which is used by some one technique. For example, magnetic resonance imaging is prescribed if you need to study the fabrics, muscles, joints in detail, or nervous system. On the pictures obtained using tomograph, pathologies can be found even at an early stage of their development.

Explore the bone system of the human body is best with the help of CT. The fact is that it reacts well enough to magnetic radiation. This is due to the insignificant content of hydrogen protons. If you conduct research of MRI methods, the accuracy of the result will be low.

CT scan - good way Examination of hollow organs. With it, it is recommended to explore the stomach, light and intestines.

By appearance MRI and CT devices are quite similar. However, with a detailed study of their design and work method, you can see many significant differences.

What more precisely: CT or MRI

Both methods possess high informativeness. However, in the study of certain pathologies and diseases, a particular diagnostic method can give a more accurate result.

MRI gives the most accurate results if available:

Malignant formations in the body.
Scarmed sclerosis.
Stroke.
The pathologies of the spinal cord.
Injury to tendons and muscles.

CT gives accurate results if available:

Injuries and internal hemorrhages.
Diseases of the bone system.
Pathologies of the respiratory system.
Sinusites and Otitis.
Atherosclerosis.
Thyroid pathologies.
Lesions of the facial skeleton.

CT and MRI: for and against

Determine which technique is also better, familiar with their advantages and disadvantages.

The advantages of magnetic resonance tomography:

High accuracy of snapshots and information content of the method.
The best method of diagnosing various diseases and pathologies of the central nervous system.
It can be used to examine small children and pregnant women, as it is completely safe for their health.
It is possible to use with any frequency.
The MRI procedure does not cause any unpleasant sensations and is completely painless.
There is no negative impact on the body of the X-ray radiation.
In the process of examination, the doctor receives a three-dimensional image of the body under study, which allows him to identify even the smallest changes in its structure and structure.
The method makes it possible to diagnose the intervertebral hernia.
You can do quite often.

Advantages of computed tomography:

The possibility of obtaining clear shots of the bone system.
Obtaining a three-dimensional image of the object under study.
Comparative diagnostic procedure.
Easy and high methods of method.
The ability to conduct a survey in the presence of metal implants and a pacemaker in the body of a patient.
Lower exposure compared to the usual X-ray apparatus.
High accuracy of results when detecting malignant neoplasms and bleeding.
More advantageous cost compared to magnetic resonance tomography.

Almost all modern methods of instrumental diagnosis possess both positive and negative parties. Methods of diagnostic studies with tomographs are no exception.

Disadvantages of MRI:

High price.
The method is contraindicated in the presence of a patient electronic devices and metal items in the body.
Low information content in the study of the bone system.
The difficulty in conducting research of hollow organs.
Long diagnostic procedure.
During the procedure, the patient has a long time to maintain immobility, which can cause some inconvenience.

Disadvantages of CT:

This technique provides information only about the structure of soft tissues and organs and does not show a full picture of their functional state.
X-ray rays with which research is carried out can provide harmful effects on the human body. Therefore, CT is not recommended to small children and pregnant women.
This procedure is prohibited from being prohibited often, since the risk of irradiation and development of radiation disease may occur.

It is worth noting that computed tomography is significantly cheaper than MRI, despite the fact that this diagnostic method is also highly accurate and informative.

What is better for the study of the knee joint

To examine the knee joint, the most accurate method is computed tomography. It allows you to identify various pathologies in the field of knees, even at the early stage of their development. MRI does not give a complete picture of all changes and pathologies in the joint structure.

The knee joint is one of the most complicated joints. human body. With any, even the most insignificant violation, a restriction is restricted in motion, physical activity is reduced and discomfort appears.

The procedure of computed tomography includes an assessment of the structure:

bone tissue;
synovial shell;
cartilage tissue.

In addition, it allows you to identify growing and swelling in the joint.

What is better for the study of lungs and bronchi

The best method for the diagnosis of pulmonary diseases is a computed tomography. It allows you to get a three-dimensional image of the selected condance cut, which will be used for further research.

With CT, you can diagnose:

tuberculosis;
pneumonia;
pleurisy;
remote metastases;
aneurysms;
emphysema;
lungs' cancer;
other diseases and pathology.

The diagnosis is carried out by an experienced radiologist. Before conducting the procedure, no additional preparation is required.

Can CT and MRI be done on one day

It is possible to combine magnetic resonance tomography with CT in one day, if it is justified, from the point of view of diagnostics. However, this statement relates to methods without the use of a contrasting agent. If the contrast is used, it is impossible to carry out other diagnostic studies on this day. In this case, you need to take a break for at least 2 days.

Conducting MRI and CT in one day will not cause any health consequences. These two methods are safe enough.

As can be seen from the foregoing, CT and MRI are practically not inferior to each other in the informativeness and accuracy of the result obtained. Therefore, it is necessary to decide what to choose, depending on the specific situation and circumstances. In addition, it is recommended when choosing a diagnostic method to pre-consult with the doctor.

MRI and CT are non-invasive diagnostic methods used to identify pathologies of various anatomical structures, including the abdominal organs. The difference between procedures is essential, however, cases of the need to choose a specific examination are not always obvious. What is better to do: CT or MRI abdominal cavity? I will try to formulate this question to this question in the present review.

CT and MRI: similarities and differences

To begin with, it is worth identifying than similar procedures. The result of the study in both cases is a three-dimensional high-frequency image, which is displayed on the computer screen and is drawn up in the form of pictures.

The most harmful method of diagnosis

The difference between CT and MRI of the abdominal cavity lies in two main directions:

Operating principle.
The degree of sensitivity.

In the case of CT, the X-ray fan beam is used. Initially, they are "watching" in different directions, then the rays are returned in the form of electrical signals, due to which the snapshot is formed.

The safest diagnostic method

When it comes to magnetic resonance imaging, an impact magnetic field is used - hydrogen atoms are built in parallel to the direction of the magnetic wavelength. Since in muscle tissue, vessels and bones, the content of atoms is different, on electronic device Signals of unequal intensity are transmitted. From the latter, the final image of the body under study is formed.

CT demonstrates the picture of the physical condition of organs and tissues, and with the help of MRI, you can obtain comprehensive data on the chemical structure of the anatomical structures at the time of the study.

Computer diagnostics helps to assess solid formations, determine the tissue density indicator and the degree of pathological changes in lymph nodes. If you need to diagnose the condition of soft tissues and determine the likelihood of inflammation, MRI applies.

On the basis of the main differences in the described methods, a number of others are formed expressing in the possibilities of diagnosing certain pathologies, contraindications, preparatory stages, surveys, the cost of medical services.

What diagnoses MRI.

The scope of MRI applies to:

Scanning results may indicate possible disorders in the structure and bloodstream of internal organs.

What shows CT.

More often, computed tomography is used to study the organ structural organs, including the stomach, intestines, the bladder. The method is used in a number of applications:

Preparation for surveys

For MRI, there are no special preliminary procedures, it is necessary to comply with only a few uncomplicated recommendations:

Computed tomography, unlike MRI, is characterized by more hard recommendations on the eve of the scan:

When conducting computer tomography of kidneys without using a contrast age, preliminary procedures are missing. In the case of scanning the bladder, the contrast drug is introduced into the body 5 hours before the procedure starts.

Contraindications for diagnostics

Contraindicated sheet is formed in the case of both procedures. The combining restriction is claustrophobia in the patient - the long-lasting finding of the patient in the tunnel of the device can cause panic.

List of restrictions to CT

This type of diagnosis is not carried out by pregnant women throughout the entire period of the baby's nodding, as well as nursing mothers and persons recently exposed X-ray radiation.

Among other contraindications to computer tomography:

If computer diagnostics are planned to be carried out with contrasting and the drug is used as an iodine-containing substance, the pathologies of the kidneys and liver are added to the contraindications, as well as thyrotoxicosis.

Contraindications to MRI.

To the passage of magnetic resonance tomography of organs, persons with metal implants, a pacemaker, an auditory prosthesis are not allowed.

MRI do not conduct pregnant women throughout the first trimester, as well as patients suffering from psychosomatic diseases. If a contrast with the content of gadolinium is used, renal failure is added to the list of restrictions.

The examination requires a mandatory allergic sample for contrasting drugs.

Disadvantages of MRI and CT

For the convenience of the perception of information, information about the disadvantage characteristics of the procedures is shown in the table:

Cons MRI.	CED
- Low informativeness in the diagnosis of hollow organs (respiratory, urinary, gallbladder) - the impossibility of diagnosing persons with implants from metal - a long period of study - an average of 30 minutes - the need to preserve the immobile patient throughout the entire scanning time	- determination of the state of organs and tissues without providing information on functional disorders of anatomical units - the impossibility of frequent research - Restrictions on the diagnosis of small children and pregnant women

Left MRI - right CT apparatus

Which method to choose: MRI or CT

What is better: magnetic resonance tomography or multispiral computed tomography (MSCT) of the abdominal cavity? The main criterion for selecting the procedure is to diagnose readings. If it is necessary to estimate the state of the bone system, CT will be informative. Both devices are able to demonstrate malignant tumors, they perfectly scatter the intestines, stomach, kidneys and liver.

In detail to study the features of the functioning will help magnetic resonance tomography, but stones and sand equipment does not recognize, therefore, to identify them in the kidneys and a bustling bubble, computer tomography is shown.

By choosing in favor of one of the diagnostic methods, it is worthwhile to take into account the list of the following surveys:

Service cost

CT and MRI are also distinguished by the cost of the procedure. The clinics and hospitals of the country are allowed to independently set the cost of scanning. The price indicator depends on the body that is subject to research, as well as equipment with which the procedure is carried out. MRI can do the patient in 4-14 thousand rubles, and CT - 3-14 thousand rubles.

What is better than CT or, unambiguously impossible. The overall feature of methods consists in the form of a survey. Main differences: principle of operation and sensitivity. Magnetic and computed tomography have different testimony, restrictions, have a number of individual advantages. The values \u200b\u200bof MRI and CT will also be varied. The choice of a specific technique depends on the objectives of the study, state of the patient, other circumstances.

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