We can say that it is a very useful technique that doctors used and helped them a lot and used it in order to photograph the human body so that it was able to show all and all the body details and show detailed and accurate pictures where he was able to see the joints, cartilages, ligaments, muscles and tendons. .. And this technology is considered an important and great discovery on the health level or aspect, because it does not cause harm to the human body or the risk of exposure to dangerous radiation. The latter uses a very strong magnetic field to generate and create images of the human body that do not see well, using other techniques such as the usual X-ray technique that we use to detect bone fractures.

 

 

 

Magnetic resonance imaging technology is used to examine the internal body structure and diagnose many internal microscopic diseases that are difficult to detect, such as strokes, tumors or internal bleeding, and the spine is also widely used in research for imaging the brain. Magnetic resonance imaging can also see the tissues in great detail, which is the characteristic of this technique, that is, it helps a lot in detecting diseases related to the mentioned organs.

How does this "magnetic resonance imaging" technique work?

As we know, most of the human body is made up of water. Water consists of an oxygen atom and two hydrogen atoms (protons), the latter which align in the presence of a magnetic field. The MRI machine delivers a very strong magnetic field, which causes the protons to line up. The device also provides a radio frequency that creates a variable magnetic field. In the case of a magnetic field, the protons absorb its energy, changing its direction, and in the event that the field is closed, it returns to its place and emits a radio signal that is calculated and converted into an image using the device.

This happens in different parts of the body and at different speeds, which enables the device to distinguish between many tissues and produce different contrasts for them. We also enable us to make three-dimensional images and see them from different angles by adding magnetic fields.


The most important types of magnetic resonance imaging (MRI):


Effective magnetic resonance imaging:

As mentioned earlier, an MRI can be used to see the guest activity of the brain. Where the changes in blood flow to different parts of the brain are calculated, which enables monitoring of the structure of the brain and determining which part can implement and carry its function. This is useful for evaluating brain injuries, for example Alzheimer's disease, and is very useful in the field of neuroscience.

Diffusion MRI:

This type measures the amount of diffusion of water molecules (protons) through the tissues of the body, through which we can diagnose clots or tumors.

How is the patient examined:

During the examination, the patient is asked to lie on a movable table that slides into the opening of the device. The device generates a strong magnetic field and radio waves that the patient will not feel, then they are directed to his body. During the examination, he hears loud knocking and clicking sounds like a hammer, so sometimes a patient is offered headphones or earplugs to avoid this sound. It is also possible to give an injection that contains a chemical substance that helps clarify certain problems that you may not see without it, and also a sedative substance can be given to people who fear closed places to relax them and help them to lie steadily because of its importance during the examination and to obtain clear pictures.

As we know, most of the human body is made up of water. Water consists of an oxygen atom and two hydrogen atoms (protons), the latter which align in the presence of a magnetic field. The MRI machine delivers a very strong magnetic field, which causes the protons to line up. The device also provides a radio frequency that creates a variable magnetic field. In the case of a magnetic field, the protons absorb its energy, changing its direction, and in the event that the field is closed, it returns to its place and emits a radio signal that is calculated and converted into an image using the device.

This happens in different parts of the body and at different speeds, which enables the device to distinguish between many tissues and produce different contrasts for them. We also enable us to make three-dimensional images and see them from different angles by adding magnetic fields.


The most important types of magnetic resonance imaging (MRI):


Effective magnetic resonance imaging:

As mentioned earlier, an MRI can be used to see the guest activity of the brain. Where the changes in blood flow to different parts of the brain are calculated, which enables monitoring of the structure of the brain and determining which part can implement and carry its function. This is useful for evaluating brain injuries, for example Alzheimer's disease, and is very useful in the field of neuroscience.

Diffusion MRI:

This type measures the amount of diffusion of water molecules (protons) through the tissues of the body, through which we can diagnose clots or tumors.

How is the patient examined:

During the examination, the patient is asked to lie on a movable table that slides into the opening of the device. The device generates a strong magnetic field and radio waves that the patient will not feel, then they are directed to his body. During the examination, he hears loud knocking and clicking sounds like a hammer, so sometimes a patient is offered headphones or earplugs to avoid this sound. It is also possible to give an injection that contains a chemical substance that helps clarify certain problems that you may not see without it, and also a sedative substance can be given to people who fear closed places to relax them and help them to lie steadily because of its importance during the examination and to obtain clear pictures.

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