Sham Transcranial Magnetic Stimulation Using Electrical Stimulation of the Scalp.
Research
RF Safe Research Library
Jan 1, 2009
This study describes development and validation of a sham rTMS approach that combines a matched sham coil (for look/sound) with scalp electrical stimulation (for sensation). In back-to-back comparisons, TMS-naïve participants reportedly could not tell active from sham, whereas experienced participants could. The…
Evaluation of the efficacy of pulsed electromagnetic field in the management of patients with diabetic polyneuropathy.
Research
RF Safe Research Library
Jan 1, 2009
This randomized controlled trial evaluated low-power, low-frequency pulsed electromagnetic field (PEMF) therapy at 600 Hz and 800 Hz as an adjunct treatment for diabetic polyneuropathy. Thirty participants were randomized to 600 Hz PEMF, 800 Hz PEMF, or usual medical treatment for 12 days. The abstract reports…
[Female genital toxicities of high-frequency electromagnetic field on rats].
Research
RF Safe Research Library
Jan 1, 2009
This rat study examined sub-chronic exposure to a 30 MHz electromagnetic field at 0–1600 V/m for 8 hours/day, 5 days/week, over 56 days. The authors report no change in ovarian wet weight, but dose-related changes in estrous cycle timing, reproductive hormones (higher LH and lower E2 at higher exposures), and ovarian…
[A aquaporin 4 expression and effects in rat hippocampus after microwave radiation].
Research
RF Safe Research Library
Jan 1, 2009
This rat study examined hippocampal aquaporin 4 (AQP4) expression after microwave exposure at 10, 30, or 100 mW/cm^2. The authors report increased AQP4 protein and gene expression after exposure, with recovery at lower power density but more persistent elevation at higher power density. They conclude that increased…
Survey of ownership and use of mobile phones among medical science students in Yazd.
Research
RF Safe Research Library
Jan 1, 2009
This cross-sectional survey assessed mobile phone ownership and use patterns among 309 medical science students in Yazd using a self-administered questionnaire. The abstract reports descriptive statistics on daily talking time, music listening, texting, and common locations of phone use. While the paper references…
Static magnetic field therapy: a critical review of treatment parameters.
Research
RF Safe Research Library
Jan 1, 2009
This critical review summarizes human research on static magnetic field (SMF) therapy delivered by permanent magnets attached to the skin and evaluates how well studies report SMF dosage and treatment parameters. Across 56 included studies, many did not report essential SMF characteristics (e.g., magnet dimensions,…
Biological effects from electromagnetic field exposure and public exposure standards
Research
RF Safe Research Library
Jan 1, 2008
This review describes public concerns and scientific reports of non-thermal biological effects from low-intensity ELF and RF exposures. It lists multiple health endpoints reported to be associated with ELF and/or RF and highlights the BioInitiative Report’s conclusion that a reasonable suspicion of risk exists at…
Genetic damage in mammalian somatic cells exposed to radiofrequency radiation: a meta-analysis of data from 63 publications (1990-2005)
Research
RF Safe Research Library
Jan 1, 2008
A meta-analysis of 63 publications assessed whether radiofrequency (RF) radiation exposure is associated with genetic damage in mammalian somatic cells using multiple genotoxicity endpoints. Overall differences between RF-exposed and control conditions were reported as small, though statistically significant…
Effects of mobile phone use on specific intensive care unit devices.
Research
RF Safe Research Library
Jan 1, 2008
This study tested electromagnetic interference from GSM and CDMA mobile phones placed one foot from ICU devices (syringe pump, mechanical ventilator, bedside monitor) in off, standby, and talk modes. EMI was observed for the syringe pump in talk mode, with a mean 2.66 ml variation between calculated and delivered…
Head-to-head comparison of coronary plaque evaluation between multislice computed tomography and intravascular ultrasound radiofrequency data analysis.
Research
RF Safe Research Library
Jan 1, 2008
This study compared coronary plaque assessment by 64-slice multislice computed tomography (MSCT) with virtual histology intravascular ultrasound (VH IVUS) in 50 patients. The Agatston score on MSCT correlated moderately with calcium volume measured by VH IVUS, and MSCT plaque categories broadly reflected differences…
Silicon-on-insulator-based radio frequency single-electron transistors operating at temperatures above 4.2 K.
Research
RF Safe Research Library
Jan 1, 2008
This engineering study demonstrates a silicon-on-insulator (SOI) radio-frequency single-electron transistor (RF-SET) operating at temperatures above 4.2 K. The device was optimized to address high resistance in SOI SETs and showed stable transport characteristics after repeated thermal cycling. RF-SET operation was…
Arthroscopic capsular shrinkage for chronic ankle instability with thermal radiofrequency: prospective multicenter trial.
Research
RF Safe Research Library
Jan 1, 2008
This prospective multicenter longitudinal trial evaluated arthroscopic thermal radiofrequency capsular shrinkage for chronic ankle instability in adults who failed conservative therapy. The study reports no clinically relevant improvement in mechanical stability, but substantial and statistically significant…
Health hazards of mobile phones: an Indian perspective.
Research
RF Safe Research Library
Jan 1, 2008
This review-style article provides an overview of mobile phone radiation exposure in India and discusses potential health hazards in terms of thermal and non-thermal effects. It states that usage behaviors such as longer call duration and predominantly one-sided use are described as key risks increasing the…
Adverse effects of excessive mobile phone use.
Research
RF Safe Research Library
Jan 1, 2008
This cross-sectional questionnaire study surveyed 286 medical students about mobile phone use and health complaints. The abstract reports multiple self-reported symptoms (including impaired concentration, memory disturbances, sleeplessness, fatigue, and headache) and notes that 44.4% of respondents attributed their…
SAR changes in a human head model for plane wave exposure (500 - 2500 MHz) and a comparison with IEEE 2005 safety limits.
Research
RF Safe Research Library
Jan 1, 2008
This engineering/modeling study derived external electric field values from peak average 10 g SAR in a realistic human head model exposed to plane waves at 500–2500 MHz. The derived fields were compared with IEEE and ICNIRP reference levels across multiple incident directions and polarizations. The authors report…
Greyscale intravascular ultrasound and IVUS-radiofrequency tissue characterisation to improve understanding of the mechanisms of coronary stent thrombosis in drug-eluting stents.
Research
RF Safe Research Library
Jan 1, 2008
This review describes proposed mechanical causes of drug-eluting stent thrombosis and notes that many are identifiable by greyscale intravascular ultrasound (IVUS). It highlights that evidence linking specific IVUS findings to stent thrombosis remains uncertain because relatively few stent thrombosis cases have been…
Coil design considerations for deep-brain transcranial magnetic stimulation (dTMS).
Research
RF Safe Research Library
Jan 1, 2008
This engineering-focused conference paper proposes figures of merit to evaluate deep-brain transcranial magnetic stimulation (dTMS) coil designs, focusing on depth penetration, scalp stimulation, focality, and energy. It analyzes circular crown and C-core coils and reports reduced electric-field attenuation with…
New functions developed for ICU/CCU remote monitoring system using a 3G mobile phone and evaluations of the system.
Research
RF Safe Research Library
Jan 1, 2008
This conference paper describes development of new functions for an ICU/CCU remote monitoring system that uses a 3G mobile phone. The authors state that evaluations were performed on several different mobile phones and suggest the system has accuracy and real-time performance suitable for hospital adoption. The…
Development of a cell phone-based video streaming system for persons with early stage Alzheimer's disease.
Research
RF Safe Research Library
Jan 1, 2008
This conference paper reports early development of a cell phone-based video streaming system to deliver video reminders for people with early dementia. Carers can record and schedule reminders remotely via a computer and webcam. A first prototype was implemented, with an initial field trial scheduled and a larger…
Chemotherapy side-effect management using mobile phones.
Research
RF Safe Research Library
Jan 1, 2008
This conference paper describes a mobile-phone telemedicine system for managing chemotherapy side-effects at home using symptom diaries and automated alerts to nurses. Six patients used the system for two cycles of oral chemotherapy. The abstract reports two instances where moderate symptoms deteriorated to more…
Radiofrequency dosimetry in subjects implanted with metallic straight wires: a numerical study.
Research
RF Safe Research Library
Jan 1, 2008
This numerical FDTD study modeled RF exposure at 900 and 1800 MHz in tissue containing thin metallic straight wire implants. The model indicates that the wire can substantially increase local SAR, creating high SAR gradients. Despite this, the authors report that exposures below current safe levels resulted in…
Combined effect of temperature and pulsed electric fields on apple juice peroxidase and polyphenoloxidase inactivation.
Research
RF Safe Research Library
Jan 1, 2008
This laboratory study evaluated pulsed electric fields (PEF) combined with preheating to inactivate peroxidase (POD) and polyphenoloxidase (PPO) in freshly prepared apple juice. The highest reported inactivation occurred with preheating to 50°C and PEF at 40 kV/cm for 100 μs, exceeding the reductions seen with…
Position-independent chemical quantitation with passive 13.56-MHz radio frequency identification (RFID) sensors.
Research
RF Safe Research Library
Jan 1, 2008
This engineering study evaluates whether passive 13.56-MHz RFID-based chemical sensors can quantify analytes reliably despite repositioning errors between the sensor and pickup coil. Using simultaneous measurement of multiple complex-impedance parameters and multivariate statistical analysis, the authors report…
A benzene-core trinuclear GdIII complex: towards the optimization of relaxivity for MRI contrast agent applications at high magnetic field.
Research
RF Safe Research Library
Jan 1, 2008
This chemistry/engineering study reports the synthesis and NMR/MRI-relevant characterization of a trinuclear Gd(III) chelate intended for high-field MRI contrast applications. Using 17O NMR and proton relaxivity across multiple fields and temperatures, the authors infer bishydration, quantify water exchange and…
Histologic evaluation of thermal capsulorrhaphy of human shoulder joint capsule with monopolar radiofrequency energy during short- to long-term follow-up.
Research
RF Safe Research Library
Jan 1, 2008
This Level III therapeutic case-control study evaluated shoulder capsule histology after arthroscopic thermal capsulorrhaphy using monopolar radiofrequency energy, with follow-up from 3.5 to 62 months. Mid- and long-term mRFE groups did not differ from controls on several histologic categories (synovial layer, edema,…