S-scan is running on WindowsВ® system, which allows this device to use various functionalities and be able to easily learn from just being used. That is the reason why they are being used at this moment in many hospitals and laboratories all around the world. Systems from Esaote deliver the combination of ease of usage, excellent quality, and optimum patient comfort. This area is second most requested, right after neuroimaging and Esaote, has given focus to this and became a world leader in the area. Their products are specifically manufactured based on the needs of professionals in musculoskeletal anatomy.

Esaote has experience with the production of devices in this area since 1993. If you move about the images will be blurred and will lose their diagnostic value.This device, designed and engineered by Italian company Esaote is an optimized MRI scanner for practices with the musculoskeletal workload. Don't be tempted to tap your feet along with the music - during your examination you will need to keep nice and still - just like when you have a photo taken. Some scanners also offer music via headphones during the procedure. The noise level is exactly equivalent to that experienced in an aircraft cabin during a flight - so just like on a plane you will be offered ear defenders for your comfort. This is simply due to the way the system works and is nothing to be alarmed about. The sounds range from loud knocking to a rhythmic vibration during the acquisition of your images. MRI scanners are surprisingly noisy, some being louder than others. They come in all shapes and sizes, cylinder shaped for around the knee, cup-shaped to fit over the shoulder wrap-around designs for imaging the abdomen and long flat receivers that are built into the patient couch for imaging the spine.

The receiver coils used don't look like radio aerials, in fact they are specially configured to fit the part of the body being examined. The hydrogen atoms lose the energy that they have been given, and by placing a radio antenna close to the part of the body being examined the scanner can detect a very weak signal created by the billions of atoms inside the area being scanned. The final part of the process is what happens after the radio waves are momentarily switched off. You may feel a little warm, but this is quite normal. The amount of energy is fairly small and carefully calculated by the system for your personal body size (weight), so you should feel nothing. The scanner broadcasts a radio wave at the same frequency as the wobbling magnetic fields of your hydrogen atoms and transfers a small amount of energy to them.

This transfer of energy is defined as 'resonance'. If you hold the vibrating fork close to the other - they start to vibrate in unison. An interesting thing happens when you have two tuning forks of the same size. This is the exact frequency required to tune your musical instrument. If you have ever used a tuning fork you will know that when you strike it against something it vibrates at a certain frequency. A great explanation for what happens is to imagine a musical tuning fork. This is where the term 'resonance' comes in. Every scanner has a built-in radio transmitter that is designed to 'broadcast' radio waves at exactly the right frequency to match the wobbling magnetic fields of the hydrogen atoms. The second part of the process involves the radio waves mentioned earlier. In the case of your hydrogen atoms, the speed of wobble can be calculated according to the field strength used by the system. A spinning top rotates very quickly, but in addition to this you will notice that it wobbles slowly around on its own axis in a circular path. Interestingly, even when you are keeping still, the magnetic fields of your atoms are in constant motion - rather than just pointing in a particular direction they wobble about! If you have ever seen a spinning top or gyroscope you will be able to picture this very well. You will not feel anything because the human body is not sensitive to magnetic fields of this magnitude, so you can lie back and relax. When you are positioned for your scan, these magnetic fields naturally align themselves to the magnet inside the scanner. The importance of a hydrogen atom in MRI imaging is the fact that it is a tiny single particle which has its own microscopic magnetic field. Water contains hydrogen and oxygen atoms and as a result approximately 62% of your body is made up from hydrogen atoms. About half of your body weight is due to the water content of your cells - slightly less in women and rather more in men. If you are interested in the mechanism behind MRI, it is a fairly complex concept, but essentially it relies on the fact that a human body contains a lot of hydrogen.

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