Ultrafast volumetric B1 (+) mapping for improved radiofrequency shimming in 3 tesla body MRI.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
MEDIUM
This engineering/clinical MRI methods study evaluated ultrafast volumetric DREAM B1+ mapping to refine patient-adaptive RF shimming at 3T. In 20 patients and three volunteers, a multi-slice adaptive RF shimming approach reduced flip-angle deviations and improved B1+ homogeneity compared with…
Non-linear adaptive phenomena which decrease the risk of infection after pre-exposure to radiofrequency radiation.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
MEDIUM
This animal study examined whether pre-exposure to radiofrequency radiation (from a GSM mobile phone) alters survival after subsequent Escherichia coli infection. The abstract reports higher survival in the group receiving both RF pre-exposure and bacterial challenge than in the group receiving…
An ephaptic transmission model of CA3 pyramidal cells: an investigation into electric field effects.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
MEDIUM
This paper presents a two-compartment computational model of CA3 pyramidal neurons to investigate how extracellular electric fields influence neuronal behavior via ephaptic transmission. The model is matched to subthreshold experimental responses at rest and used to analyze how DC and sinusoidal…
Liver lesion conspicuity during real-time MR-guided radiofrequency applicator placement using spoiled gradient echo and balanced steady-state free precession imaging.
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Jan 1, 2014 NEUTRAL
MEDIUM
This retrospective study evaluated liver lesion conspicuity during real-time MR-guided radiofrequency applicator placement using spoiled GRE and balanced SSFP MRI sequences in a 1.5 T scanner. Lesion detectability categories and contrast-to-noise ratio (CNR) were compared for hepatocellular…
Passive tracking of linac clinical flow using radiofrequency identification technology.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
MEDIUM
This study reports implementation of a passive RFID system to passively track patient flow in a radiation therapy clinic using readers/antennae in linac vault areas. Across 4302 treatment fractions from 144 patients, the system achieved about 70% read reliability and enabled comparison of median…
A comparative study of radiofrequency assisted versus microdebrider assisted turbinoplasty in cases of inferior turbinate hypertrophy.
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Jan 1, 2014 NEUTRAL
MEDIUM
This prospective interventional study randomized 60 patients with inferior turbinate hypertrophy to bipolar radiofrequency-assisted versus microdebrider-assisted turbinoplasty (30 per group). Both groups showed significant postoperative symptom improvement through 6 months. Three recurrences were…
Can mobile phones help control neglected tropical diseases? Experiences from Tanzania.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
LOW
This qualitative case study (2011) describes a pilot mobile phone-based management information system for neglected tropical disease control in Tanzania, where village health workers used phones with web-based software to capture data at source. The study reports improved routine work efficiency…
Autophagy and enhanced chemosensitivity in experimental pancreatic cancers induced by noninvasive radiofrequency field treatment.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
MEDIUM
This study tested noninvasive 13.56 MHz radiofrequency electric fields as a treatment adjunct for pancreatic ductal adenocarcinoma in cell lines and mouse xenograft models. The authors report RF exposure caused cytotoxicity in PDAC cells via autophagy (not apoptosis) and that normal pancreatic…
Modification of catalase and MAPK in Vicia faba cultivated in soil with high natural radioactivity and treated with a static magnetic field.
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Jan 1, 2014 CONCERN
MEDIUM
This plant study examined effects of a 30 mT static magnetic field and cultivation in soil with high natural radioactivity on oxidative stress-related markers in Vicia faba. The abstract reports significant changes in catalase and MAPK gene expression in treated plants versus controls. Catalase…
Effect of radiofrequency microtenotomy on degeneration of tendons: an experimental study on rabbits.
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Jan 1, 2014 NEUTRAL
MEDIUM
This experimental rabbit study evaluated radiofrequency microtenotomy (Rf-mt) in prostaglandin E1-induced Achilles tendon degeneration. Rf-mt increased vascularity based on histopathology and immunohistochemistry. However, the authors report no significant difference in tendon healing compared…
Effects of ultraviolet irradiation, pulsed electric field, hot water and ethanol vapours treatment on functional properties of mung bean sprouts.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
UNKNOWN
This study examined how pulsed electric field, hot water dip, ethanol vapours, and UV irradiation affected antioxidant-related properties of mung bean sprouts during storage at room and low temperatures. Ethanol vapour-treated sprouts had the highest ascorbic acid, total phenols, and antioxidant…
High-frequency hearing loss among mobile phone users.
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Jan 1, 2014 CONCERN
MEDIUM
This prospective single-blinded study assessed hearing above 8 kHz among prolonged mobile phone users using high-frequency audiometry. Because few non-users were available, the study compared each participant’s dominant (phone-used) ear with the non-dominant ear, with the audiologist blinded to…
The effect of extremely low frequency pulsed electromagnetic field on in vitro fertilization success rate in N MRI mice.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
LOW
This randomized comparative animal study tested whether extremely low frequency pulsed electromagnetic field exposure affects IVF success in NMRI mice. Mice in the experimental group were exposed to a 1.3 mT pulsed field at 4 kHz for 5 hours during the IVF process. Although the exposed group…
Exposure to extremely low-frequency electromagnetic fields inhibits T-type calcium channels via AA/LTE4 signaling pathway.
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Jan 1, 2014 CONCERN
MEDIUM
This in vitro study examined 50 Hz ELF-EMF effects on human T-type calcium channels expressed in HEK293 cells and on native T-type channels in primary cultured mouse cortical neurons. The authors report that ELF-EMF (0.2 mT) inhibited Cav3.1, Cav3.2, and Cav3.3 channel activity without changing…
Mitigation of biofouling using electromagnetic fields in tubular heat exchangers-condensers cooled by seawater.
RF Safe Research Library
Jan 1, 2014 NEUTRAL
UNKNOWN
This paper describes an engineering application of electromagnetic field (EMF) treatment to mitigate biofouling in seawater-cooled tubular heat exchanger-condensers. After allowing a biofilm to stabilize, EMF treatment was applied and was reported to precipitate dissolved ions and contribute to…
Sensory transduction of weak electromagnetic fields: role of glutamate neurotransmission mediated by NMDA receptors.
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Jan 1, 2014 CONCERN
MEDIUM
This rat EEG study reports that weak electromagnetic fields elicited evoked potentials in awake animals but not under anesthesia that included ketamine. Xylazine anesthesia did not eliminate EMF-evoked potentials, whereas ketamine (an NMDA receptor antagonist) was associated with absence of both…
Effects of 900 MHz electromagnetic field emitted by cellular phones on electrocardiograms of guinea pigs.
RF Safe Research Library
Jan 1, 2014 REASSURANCE
MEDIUM
This animal study examined whether RF-EMF from cellular phones affects electrocardiograms in guinea pigs. Thirty guinea pigs were randomized to control (no exposure) or RF-EMF exposure (890–915 MHz; SAR 0.95 W/kg) for 12 hours per day over 30 days. The study reports no significant effects on ECG…
Assessment of extremely low frequency magnetic field exposure from GSM mobile phones.
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Jan 1, 2014 NEUTRAL
MEDIUM
This paper reports extremely low frequency (ELF) magnetic flux density measurements from 47 GSM mobile phones, collected to support exposure classification in the MOBI-KIDS epidemiological study. At 25 mm, maximum resultant magnetic flux density at 217 Hz had a geometric mean of 221 nT, and…
Assessment and comparison of total RF-EMF exposure in femtocell and macrocell base station scenarios.
RF Safe Research Library
Jan 1, 2014 REASSURANCE
MEDIUM
This study assessed and compared total RF-EMF exposure for a mobile-phone user in an office environment when connected to an indoor femtocell base station versus a conventional macrocell base station. Using a framework that combines near-field and far-field exposure, the authors report a 20–40×…
Spatial learning, monoamines and oxidative stress in rats exposed to 900 MHz electromagnetic field in combination with iron overload.
RF Safe Research Library
Jan 1, 2014 CONCERN
MEDIUM
This animal study tested whether 900 MHz EMF exposure, alone or combined with brain iron overload, affects cognition and brain biochemistry in Long-Evans rats. EMF-exposed rats showed impairment in an object exploration task and changes in monoamine content (notably in the hippocampus), while…