Dear all re MRIs and sensors,
MRI stands for Magnetic Resonance Imaging. The process uses intense and changing magnetic fields to build images of your interior. The software to do that is amazing.
One of the main effects of a changing magnetic field is inducing an electric current in metals. That is how the older transformers work to change 240 volts to 5 volts or 24 V.
So, you are asked to remove jewellery, watches, glasses etc., and sensors that contain metal because of both the electric currents the magnetic fields would cause and if any magnetic materials were in them ( Iron, Cobalt, Nickel) they would be attracted by the intense magnetism. The fields are INTENSELY strong.
That is one of the reasons that hips and knees contain only Titanium. It is non magnetic and neither is Gold or Silver (dental fillings).
Precaution is the main game in removing everything that is removable.
Hope this helps you plan your future MRIs.
Regards
David
Adjunct Professor David H McKinnon
School of Education
Edith Cowan University
Joondalup 6027, Perth
Western Australia
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Original Message:
Sent: 11/15/2021 2:09:00 PM
From: Paul
Subject: RE: Abbott Libre Sensors
Hi Michelle !
Had the same experience. They have a list of devices which can be worn during an MRI. Unfortunately the Libre Sensor is not on the list.
Not sure why, but goodbye $92.50 !
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Paul
"I'm not much on seizing the day. I just kinda poke it with a stick."
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Original Message:
Sent: 14-11-2021 23:12
From: Michelle
Subject: Abbott Libre Sensors
Hello my name is Michelle.
I am writing to find out whether anyone else who uses the Abbott Libre Sensors has had to have an MRI.
The reason I ask is , I had to have an MRI two weeks ago and had changed my sensor the night before as I has knocked the sensor I had on off.
I went to have the MRI and was told I had to take the sensor off. I said I had just changed it the night before. I was having an MRI on my foot not of my arm. The radiographer insisted it had to come off.
I was very annoyed by this. He said have your doctor write to the radiography company stating you had to take it off and they will allow me to obtain another sensor? This is so frustrating. Of course the radiography company is not going to reimburse me.
I am interested to hear from others. I have to have another MRI in two weeks. I have started using my old blood glucose machine, so I do not waste another $92.50.