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Mri Functions And The Need For Cooling Systems

What is an mri? an mri, or magnetic resonance imaging machine, uses an extremely powerful magnetic field in combination with radio waves to scan the body and produce detailed pictures.Mri machines are commonly used to diagnose a variety of physiological and pathological changes within the chest and abdomen including tumors, cirrhosis, crohn's disease, ulcerative colitis, heart problems, and blood vessel malformations.An mri scan can also detect pregnancy in women and can be used to safely monitor the fetus.Conventional ct scans and x-rays use ionizing radiation to produce an image, which can eventually harm human beings.Mri scans, on the other hand, use radiofrequency pulses to realign the hydrogen atoms that occur naturally in our bodies so as not to cause any chemical changes in the tissues.Computers then process the signals and generate images of the body which can then be studied and interpreted by radiologists and physicians.How the magnet works mri machines can vary in size and shape, however, the basic design is typically the same in all machines.The most integral and largest component of the machine is the magnet.The magnet allows the machine to produce high-quality images of a patient's body.Most mri magnets have a magnetic field of 0.5 to 2.0 tesla.To give you an idea of just how powerful that is, the earth's magnetic field is 0.5 gauss (1 tesla = 10,000 gauss).By passing current through multiple coils inside the magnet, the machine achieves a state of superconductivity and thus produces an extreme amount of energy.Energy results in heat, and heat must be removed from the magnet and the machine in order to guarantee proper functioning and accuracy.To remove heat, an mri scanner chiller is needed.Mri temperature management an mri machine is one of the most demanding scanning environments.Patients and their physicians rely heavily on the machine's ability to produce high-quality images of the body to aid in finding abnormalities and making diagnoses.For this reason, mri machines must be cared for and maintained regularly.To maintain the machine and ensure it operates at the absolute highest levels of efficiency, the magnet must be kept as cool as possible.Generally, either air or water can be used to chill the machine.The two methods differ in that some chillers displace heat to the surrounding ambient air while some displace heat to a water tower.It is important that the superconducting magnet within the machine remains cool to guarantee the accuracy of the scans and longevity of the machine itself.Some mri machines can cost as much as $3 million so protecting that investment with the proper mri scanner chiller is imperative.

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