To anyone who has had an MRI of the brain -- especially a CLOSED one (as opposed to the now ubiquitous open MRIs) -- the second worst thing (for most people claustrophobic feelings are the first) is the NOISE...
They typically give earphones to block out noise, and the radiologist's instructions will come through on them now and again. They usually ask you from time to time to hold your breath for a moment, to be sure your head is absolutely still.
They may pipe music in through the 'phones, but let me tell you, once that thing gets going, you won't hear any music. Not even if you're listening to heavy metal.
All you will hear is:
"Rrrrrrrrrrrrrrr -- WHAMMMM!! Ka-CHUNG Ka-CHUNG Ka-CHUNG Ka-CHUNG Ka-CHUNG Ka-CHUNG Ka-CHUNG Ka-CHUNG...." at a decibel level that you will be quite sure is equal to the noise of an old Concorde -- or possibly a new space-shuttle -- taking off from your backyard.
It goes on and on and ON and ON AND ON until you start thinking you're going to totally lose it, and you have to wonder if this feeling is going to have some influence over what your brain looks like to the machine. Relax; it doesn't. If it were a PET scan, that'd be different. (And less noisy anyway!)
The knocking noise is caused by the 3 additional magnetic fields that turn on when a signal is generated from the patient. These gradients help localize the signal being emitted from the patients' body.
why is it so loud
MRI
No. People are remarkably unaffected by magnetic fields, even extremely strong ones. Otherwise, people in an MRI machine would be in pain. As it is, the only problem with having an MRI is the noise.
an MRI
an MRI
If the MRI technologist positions you with your leg going into the magnet (the MRI machine) then your head would be out of it. Call the facility where you are scheduled to have the MRI and ask to speak with the MRI technologist and they can fully explain to you exactly how you will be positioned.
You can find an mri tech job at www.indeed.com/q-MRI-Technologist-jobs.html, www.simplyhired.com/a/jobs/list/q-mri+technologist, www.careerbuilder.com/Jobs/Keyword/Mri-Technologist/
No. It is not a treatment it is a scan. An MRI is a Magnetic Resonance Imaging. MRI are used for imaging tissues.
manly in the middle of the mri
MRI can damage cells
renal MRI
The agency that referred the patient for the MRI; the doctor or clinic.
An open MRI is an MRI that, unlike usual MRI's let patients enjoy space and comfort while continuing to have their insides scanned. The technician in this context of the question would oversee the MRI screening process.