Why does mri machine make noise

There was a time- before working here at Block, before I ever had an MRI scan- when I wouldn't have given a second thought to the inner workings of medical equipment.

If you have questions about MRI equipment, service, parts, or anything else- feel free to contact us for more information. What do the numbers on an MRI machine mean? The answer to this question also came in two parts. Related Posts. For Shields MRI price savings calculator, click here. We also learned that most of you never told your doctor about your fear! Because Shields has a very helpful solution for patients who suffer from claustrophobia, this was extremely concerning to us.

Patients who fear tight spaces can request one of Shields 1. These MRI machines are designed to maximize patient comfort with an open-ended, short bore and a 70 cm opening that allows a large field-of-view during the scan.

In addition, our staff of technologists are well-trained on special techniques that will calm the patient throughout the scan. Finally, Shields MRI encourages patients to invite a support member to accompany them into the scanning room to hold their hand for the entire procedure. How do I get a copy of my MRI? Why did I receive 2 bills for my MRI? Can I come look at the machine? I have a pacemaker, can I have an MRI? What do MRI Images look like?

At our hospital we have both 1. During active MRI scanning i. These sounds come from the MRI gradient coils which are created by loops of wires carrying electrical currents. The MRI superconducting magnet is surrounded by three sets of gradient coils that carry currents in different directions to produce a magnetic field in the X, Y and Z plane direction.

The combination of the three sets of gradient coils driven by the high energy gradient amplifiers rating: V, Amps is used to localize the position of the tissue or organ for which the picture is being acquired.

Since the gradient coils are operating within a large magnetic field and as large amounts of electrical current passes though the gradients and rapidly switch from positive to negative and back, the gradient coils expand and contract you could think of it as vibrating very rapidly within an extremely short amount of time milliseconds.

This rapid change in currents adds a Lorentz force on the gradient coils and this generates the loud noise due to the mechanical stress on these coils.