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I've been an MRI technician for nearly 10 years now. There are 2 main causes of potential discomfort during an MR exam and these are tissue heating and nerve stimulation.
Tissue heating is caused by the deposition of Radiofrequency (RF) energy. There are strict regulations on the amount of energy that can be deposited into a patient and it is directly related to the weight of the patient so the more a patient weighs the more energy is required to penetrate the body. The scanner will physically not allow us to scan with more energy than the FDA regulations allow. Assuming the patient does not have any implanted metallic devices the main potential for burns comes when there is skin contact with the side of the magnet bore. This is particularly prevalent during shoulder scans as the patient is off centred in the machine in an attempt to get the shoulder as close to the middle of the scanner as possible (the magnet is at its purest in the middle so the image quality is higher at this point compared to the outer surface) if we are scanning a right shoulder there is potential for heating/burns to the left side of the body especially if bare skin is touching the magnet bore. Insulating sponges should be used between patient skin and magnet bore should be used in to prevent this heating but unfortunately this does not always happen.
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My thought was the large bruise(11"x 6") contained enough red blood cells to be effected by the machine. Just a guess!
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Hi,
I too experienced/am experiencing burning after MRI. How are you now? (I know this post is old).
I had a scan of orbits (head) February 2016 and three months later I am still experiencing a burning sensation.
It looked like I had sunburn to start with and now my skin is still flushed and hyper sensitive. When I scratch it goes red and welts and stings like heck for ages.
I have seen a few accounts of this, but people just can't seem to find answers. Medics just say 'I've never heard of that' and diagnose stress or virus, or in my case 'I don't know, here are some antidepressants'.
I have made a Facebook group called MRI Victims. We will find answers better if we are all in one place. The medical community need to be aware that MRI is not the safe imaging device they think it is.
Good luck everyone, and if you have any news, please share.
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Have you had any luck yet? I hope you're all better now.
I too have had pain since my MRI in Feb this year. I have made a group called MRI Victims on Facebook to get people who are suffering/have suffered together.
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