Radiofrequency Field Safety
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RF Field Safety Q&A's
- What major safety issues result from radiofrequency stimulation?
- How do radiofrequency fields affect biological tissues?
- What is SAR?
- What are the absolute SAR limits you are not permitted to exceed?
- What is meant by the term "operating mode" of an MR scanner?
- What practical steps can a technologist use to reduce SAR?
- How do burns occur in MRI?
- What causes implants to heat up during MR imaging?
- How does one measure or estimate MRI-related implant heating?
- What is SED? Is it better measure of heating than SAR?
- What is B1+ rms? Is it a better metric for energy deposition than SAR?
- Does working around the electromagnetic fields of an MRI scanner carry any health risks? Should exposure be limited? What about pregnant techs and staff?
- Is it safe to live under power lines, use a cell phone, or sleep under an electric blanket at night?
RF Field Safety Topics