"Currently, typical MRI utilizes static field with strengths of with strengths of 0.5 to 3 Tesla 0.5 to 3 Tesla (FDA guideline is max 4 T for infants < 1 month guideline is max 4 T for infants < 1 month and 8 T for others) and 8 T for others) 1 Tesla = 10,000 Gauss 1 Tesla = 10,000 Gauss Magnetic field strength of the earth ~ 0.5 Magnetic field strength of the earth ~ 0.5 Gauss"
"There has been mention of dizziness and There has been mention of dizziness and disorientation of personnel and patients as disorientation of personnel and patients as they move through a field of 4T or higher. they move through a field of 4T or higher." "There is There is no clinically significant effect no clinically significant effect on heart rate, systolic and diastolic blood heart rate, systolic and diastolic blood pressure, respiratory rate, core body pressure, respiratory rate, core body temperature for static fields up to 8 T. temperature for static fields up to 8 T." "Biological Effect of Biological Effect of Time -varying Magnetic Field (3) varying Magnetic Field (3) The primary concerns with regard to time The primary concerns with regard to time - varying fields are varying fields are cardiac fibrillation cardiac fibrillation and brain stimulation brain stimulation. But study showed that But study showed that the risk of cardiac the risk of cardiac stimulation stimulation in present day MRI gradient in present day MRI gradient fields is negligible. fields is negligible." etc... quotes from < https://www.temple.edu/medicine/departments_centers/clinical_departments/documents/MRI-safety-quiz.pdf > so, I think the original comment is incorrect... On Thu, Aug 27, 2015 at 4:06 PM, evelyn <evesnew...@gmail.com> wrote: > I wanted to csution everyone about electromagnetic instruments. Firstly, > they are unsafe near the head - especilly for anyone with any kind of > seizure disorder , alzheimers, or elecrical sensitivity. Secondly, I saw > on a website related to Dr. Beck's protocol an instrument for producing > magnetic fields. It said it produced mag fields in the strength of > hundreds of gauss. This is outrageous and could cause death in some > people. 5 gauss for short exposures is a standard even OSHA uses. as a > maximum. Hundreds of gauss is something the whole neighborhood could > feel. >
