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An image can be constructed because the protons in different tissues return to their equilibrium state at different rates. By changing the parameters on the scanner this effect is used to create contrast between different types of body tissue or between other properties, as in fMRI and diffusion MRI.
What else can I help you with?
How big is a MRI machine?
an MRI machine is as tall as your tallest friend and as fat as your fattest friend. none of the sites i went on had the actual dimensions.
What waves are used in MRI machine?
MRI machines use radio waves to magnetize the hydrogen atoms in the body. When the radio waves are turned off, the hydrogen atoms release energy in the form of radio waves that are detected by the MRI machine to create an image of the internal structures of the body.
What exactly does a Mri involve?
A MRI involves laying still on a table so that the MRI machine can take images of inside the body. The images are a result of a combination of magnetic and radio waves that the machine produces. Because of the radio and magnetic waves, no radiation (such as x-rays) are exposed to the individual.
What is a 3 tesla MRI machine?
"The cost of a 3-tesla whole body [MRI] system is more than US$3 million." from ... http://www.ic.gc.ca/epic/site/mitr-crtim.nsf/en/hm00286e.html
Where can a person buy a MRI machine?
An average person cannot buy an MRI machine, as they are reserved for medical purposes. If one was to find an MRI machine for sale, it would be very expensive to buy.
Do you need a prescription for an MRI?
Yes, you typically need a prescription from a healthcare provider to undergo an MRI scan.
Do you have to put your whole body in a mri scan when testing the foot?
no, they will usually just put you half way in the machine
Can an MRI machine explode?
Yes.
Does MRI machines need maintenance?
A MRI machine may need maintenance. When the machine gets so old it can cause it to break.
What is the name of a machine in which the magnetic field is provided by an electromagnet?
MRI machine
Will an mri magnet destroy VHS tapes?
probably. only your body is supposed to go in the machine, no disks, devices, phones, or watches
How much helium does an MRI machine typically use during its operation?
An MRI machine typically uses about 1,700 liters of helium during its operation.
