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Medical devices that electronically sense physiological functions may be affected by external radiofrequency (RF) radiation from sources such as television and radio stations. When RF disrupts normal device function, it is referred to as electromagnetic interference (EMI). The Center for Devices and Radiological Health (CDRH) has been testing infant apnea monitors for susceptibility to EMI. Laboratory...
Uniform transverse heating, without excessive surface heating, in phantoms which simulate human limbs or trunks has long been sought after as a precursor for predictable hyperthermia treatment of deep-seated cancerous tissues. A family of helical coils developed at the National Center for Devices and Radiological Health has induced transversely uniform axially distributed heating in the muscle portion...
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