1 Briefly about the
After the research, pictures are obtained, which can be displayed on a computer screen, printed, sent by e-mail or through a storage medium. During the study, X-rays are not involved.
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The images obtained help to assess in detail the current clinical picture of the pathology, and also reflect the state of organs and systems that are involved in the study. This is done in order to localize the disease as soon as possible and prescribe treatment. In addition, MRI is a more effective method of research, in contrast to ultrasound or computed tomography.
MRI is the most sensitive method that allows real-time visualization of the current state of the head tissue, especially the brain.
What does the device look like? For the procedure, a standard apparatus is used, which has a cylindrical shape surrounded by a magnet. The patient is placed on a moving table, which can slide during the study for a more detailed study of a particular area. In some CT scanner designs, you can find a magnet that does not completely surround the table with the patient.
Other designs have open spaces in the side parts. They are suitable for patients who are overweight. Open side parts help those who start panic in an enclosed space. Modern devices help to obtain high-quality images and diagnose various diseases.
If the design involves an old magnet, the picture quality can be significantly reduced.
2 Principle of operation The
MRI differs significantly from the standard X-ray study, it does not require the use of ionizing radiation. A special magnet generates waves that have a directional action of protons represented as atomic hydrogen nuclei.
The principle of operation of most devices is that the magnetic field begins to form only in the case of current passing through the wound coil. Wires, which are located above the patient, can transmit the received radio waves to the computer.
The received signal passes primary processing and as a result the device receives a series of pictures. Pictures can be studied at all possible angles.
The main advantages of MRI:
- The exact form of the study, which is used in the course of an objective diagnosis and the establishment of primary symptoms.
- Thanks to the type of radiation presented, it is possible to freely examine brain structures.
- The device helps to establish diseases in the initial stages.
- In cases where other methods give little information, MRI helps. The presented method makes it possible to increase the effectiveness of the study.
This study helps to accurately predict the course of many diseases, as well as the state of brain structures, blood vessels and nerves.
If you have a primary symptomatology, you need to see a doctor who will help localize the problem and prescribe an effective treatment.