High strength MRI-Adverse Effects
Biologic Effects of 3 Tesla (T) MR Imaging Comparing Traditional 1.5 T and 0.6 T in 1023 Consecutive Outpatients. J Neuroimaging 2007 Jul;17(3):241-5. Weintraub MI, Khoury A, Cole SP.
" The recent use of high and ultra-high magnetic field (MF) systems (3.0 T and above) have raised concerns about biologic effects and safety. Sensory symptoms (magnetophosphenes, dizziness/vertigo, headaches, metallic taste, pain changes, and cognitive effects) have been reported. According to the authors-- New onset symptoms occurred predominantly with 3 T and female preponderance. Vertigo/dizziness , headache, spine pain occurred more frequently on 3 T, whereas magnetophosphenes and metallic mouth symptoms occurred principally in 1.5 T. Symptoms of vertigo/dizziness, headaches, and magnetophosphenes were more commonly seen in individuals undergoing brain MRIs but other body sites were also represented. Although no harmful effects, an unexpected high rate of 14% of individuals experienced sensory stimulation in both 3 T and 1.5 T units. Females appear to be more magnetically sensitive."
High strength MRI-Adverse Effects
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Reviewed by Sumer Sethi
on
Wednesday, July 11, 2007
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Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
2 comments:
I am female, experienced dizziness (vertigo and disequilibrium)following breast MRI on a 1.5t tonight but had also taken prep for sensitivity to contrast dye. The tech indicated this is not uncommon,depending on the test and attributed it to the MRI, not the prep or a reaction. She said some studies take more time for the protons to rearrange themselves. Huh?
Hello,
I'm so glad I came into this. I devolope a dermographism since I did a MRI. I also develope sensory stimulation AKA small nerve fibers neuropathic pain until now. And I did the exam 4 month ago. I'm really scared because I can only do my normal life taking Diazepan. I hope authoroties investifgate nore abou this...
Thanks
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