نتایج جستجو برای: radiofrequency radiation

تعداد نتایج: 255192  

2017
Munish Sharma Koroush Khalighi

The use of fluoroscopic devices exposes patients and operators to harmful effects of ionizing radiation in an electrophysiology (EP) lab. We sought to know if the newer fluoroscopic technology (Allura Clarity) installed in a hybrid EP helps to reduce prescribed radiation dose. We performed radiation dose analysis of 90 patients who underwent various procedures in the EP lab at a community teach...

Journal: :journal of biomedical physics and engineering 0
smj mortazavi x gholampour m haghani g mortazavi ar mortazavi

mobile phones are two-way radios that emit electromagnetic radiation in microwave range. as the number of mobile phone users has reached 6 billion, the bioeffects of exposure to mobile phone radiation and mobile phone electromagnetic interference with electronic equipment have received more attention, globally. as self-monitoring of blood glucose can be a beneficial part of diabetes control, ho...

AR Mortazavi G Mortazavi M Haghani SMJ Mortazavi, X Gholampour

Mobile phones are two-way radios that emit electromagnetic radiation in microwave range. As the number of mobile phone users has reached 6 billion, the bioeffects of exposure to mobile phone radiation and mobile phone electromagnetic interference with electronic equipment have received more attention, globally. As self-monitoring of blood glucose can be a beneficial part of diabetes control, ho...

Journal: :Australian family physician 2001
B Hocking

BACKGROUND Radiofrequency radiation (RFR) has been in use for some time but is now proliferative with the burgeoning radiocommunications industry. OBJECTIVE To inform the profession of the possible health effects from overexposure to radiofrequency radiation (RFR) and the clinical approach to cases. An introduction to the health effects of overexposure to RFR is given. A clinical approach to ...

Journal: :Occupational medicine 2003
Bruce Hocking R Westerman

BACKGROUND The health effects of radiofrequency radiation (RFR) and the adequacy of the safety standards are a subject of debate. One source of human data is case reports regarding peripheral neurological effects of RFR, mainly noxious sensations or dysaesthesiae. AIM To investigate health effects, neurophysiological mechanisms and safety levels for RFR. METHODS We conducted a literature se...

Journal: :Circulation 1991
H Calkins L Niklason J Sousa R el-Atassi J Langberg F Morady

BACKGROUND Catheter ablation of accessory atrioventricular (AV) connections has been demonstrated to be effective in more than 85% of patients. One of the risks of this procedure is radiation exposure during the fluoroscopic imaging necessary to guide catheter manipulation. The objective of the present study was to measure the radiation received by patients and physicians during radiofrequency ...

Journal: :journal of biomedical physics and engineering 0
gh mortazavi s a r mortazavi a r mehdizadeh

a large body of evidence now indicates that the amount of mercury released from dental amalgam fillings can be significantly accelerated by exposure to radiofrequency electromagnetic fields (rf-emfs) such as common mobile phones and magnetic resonance imaging (mri). studies performed on the increased microleakage of dental amalgam restorations after exposure to rf-emfs have further supported th...

2014
JOHN C. MITCHELL JOSEPH M. QUASHNOCK

A radiofrequency radiation exposure apparatus has been developed and placed into operation at the USAF School of Aerospace Medicine, Brooks AFB, Tex. The rectangular coaxial device has dimensions of 4% ft. by 9% ft. by 30 ft., with a 6-ft.-wide center conductor. It is powered by a B0-kwp. transmitter and operates in a pulsed mode at frequencies of 10.5, 19.27, and 26.6 MHz. Up to 12 animals (Ma...

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