The role of the location of personal exposimeters on the human body in their use for assessing exposure to the electromagnetic field in the radiofrequency range 98-2450 MHz and compliance analysis: evaluation by virtual measurements
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RF Safe Research Library
Jan 1, 2015
This study used numerical modeling with a human body model to evaluate how the placement of a single body-worn personal exposimeter affects RF electric-field measurements in the 98–2450 MHz range. Across 256 simulated exposure scenarios, the body substantially altered measured values compared with the unperturbed…
Validity of at home model predictions as a proxy for personal exposure to radiofrequency electromagnetic fields from mobile phone base stations
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RF Safe Research Library
Jan 1, 2015
This exposure-assessment study compared modeled at-home RF-EMF from mobile phone base stations (NISMap) with 24-hour personal measurements in 93 Dutch participants. Correlations were low to moderate, with better agreement for time spent at home than for the full 24-hour period. While modeled estimates could rank…
Near-field radiofrequency electromagnetic exposure assessment
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Jan 1, 2015
This paper presents a near-field RF exposure assessment method comparing standard SAR estimation from E-field measurements in tissue-simulating liquid with a proposed approach based on incident H-field measurements. Experiments were conducted at 900, 1800, and 2450 MHz using dipole antennas and a flat phantom, with…
[Radiofrequency ablation can reverse the abnormal circulating microRNA expression changes in patients with atrial fibrillation].
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RF Safe Research Library
Jan 1, 2015
This pre/post study measured circulating microRNA profiles in 30 atrial fibrillation patients before and 3 months after radiofrequency ablation, comparing results with 10 healthy controls. The authors report that numerous miRNAs differed from controls at baseline and shifted after ablation, with several highlighted…
Visualization of the radiofrequency lesion after pulmonary vein isolation using delayed enhancement magnetic resonance imaging fused with magnetic resonance angiography.
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Jan 1, 2015
This study evaluated whether fusing delayed enhancement MRI (DE-MRI) with magnetic resonance angiography (MRA) improves visualization of radiofrequency ablation lesions after pulmonary vein isolation. Eighteen atrial fibrillation ablation patients underwent both imaging approaches, and two observers scored lesion…
Visualizing radiofrequency lesions using delayed-enhancement magnetic resonance imaging in patients with atrial fibrillation: A modification of the method used by the University of Utah group.
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Jan 1, 2015
This feasibility study evaluated whether delayed-enhancement MRI (DE-MRI) using commercially available tools could visualize radiofrequency ablation lesions in Japanese patients with atrial fibrillation. Of 15 scans, 3 were uninterpretable due to low image quality, and lesions were visualized in 8 of the remaining 12…
Electromagnetic field exposure assessment in Europe radiofrequency fields (10 MHz-6 GHz).
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RF Safe Research Library
Jan 1, 2015
This paper provides an overview of published RF EMF exposure measurements in Europe and characterizes population exposure patterns. Across included spot and long-term measurement studies, reported mean electric field strengths were generally low (mostly
Association between mobile phone use and semen quality: a systemic review and meta-analysis
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RF Safe Research Library
Jan 1, 2014
This systematic review and meta-analysis assessed whether mobile phone use or radiofrequency exposure is associated with semen quality. Across included studies, the meta-analysis found no adverse effects in human studies, but reported detrimental effects on sperm motility and viability in vitro and harmful effects on…
Stereotactic excision of additional lesions detected with intraoperative ultrasound examination during radiofrequency dissecting sealar (habib®) assisted hepatic metastasectomy: report of 4 cases.
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Jan 1, 2014
This chart review describes four cases where stereotactic marking and excision were used to remove nonpalpable colorectal liver metastases during hepatic metastasectomy, guided by intraoperative ultrasound. Intraoperative ultrasound identified an additional lesion in one patient, and all resections achieved negative…
Radiofrequency reduction of inferior turbinates in allergic and non allergic rhinitis.
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Jan 1, 2014
This institutional study evaluated radiofrequency ablation for inferior turbinate hypertrophy in 200 patients with allergic or non-allergic rhinitis. Most patients reported improvement in nasal symptoms, with relatively few reporting persistent nasal obstruction or other symptoms at follow-up. The authors report no…
[Low-temperature radiofrequency technology treatment of spontaneous tonsillar hemorrhage: a case report].
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Jan 1, 2014
This case report describes a 30-year-old male admitted with intermittent fresh blood expectoration for three days and later found to have a small bleeding site on the posterior surface of the left tonsil. The authors diagnosed spontaneous tonsillar hemorrhage. They report successful management using low-temperature…
[Endoscopic pleomorphic adenoma of nasal septum resection assisted by low-temperature plasm radiofrequency: a case report].
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Jan 1, 2014
This case report describes a 24-year-old woman with a rare pleomorphic adenoma of the nasal septum. The tumor was identified on CT imaging, diagnosed by incisional biopsy, and removed endoscopically with histology confirming pleomorphic adenoma. The report focuses on clinical management rather than evaluating…
Radiofrequency-assisted liver resections: comparison of open and laparoscopic techniques.
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Jan 1, 2014
This single-institution cohort compared radiofrequency-assisted laparoscopic liver resection with open resection over 5 years (47 vs 87 patients). Laparoscopy was associated with lower blood loss and similar 5-year overall and disease-free survival compared with open surgery. The authors conclude the laparoscopic…
Treatment of contained lumbar disc herniations using radiofrequency assisted micro-tubular decompression and nucleotomy: four year prospective study results.
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Jan 1, 2014
This prospective clinical study followed patients with lumbar radiculopathy from contained disc herniations treated with radiofrequency-assisted micro-tubular decompression and nucleotomy. Among those with 4-year follow-up, pain scores improved substantially and most respondents reported satisfaction with quality of…
The efficacy in treatment of facial atrophic acne scars in Asians with a fractional radiofrequency microneedle system.
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Jan 1, 2014
This study evaluated a fractional radiofrequency microneedle system for treating facial atrophic acne scars in Asian subjects over 1-, 3-, and 6-month follow-up after three monthly sessions. Of 26 completers, the most common self-reported improvement category at 6 months was 26–50% improvement, and scar volume…
Comparison of submucosal resection and radiofrequency turbinate volume reduction for inferior turbinate hypertrophy: evaluation by magnetic resonance imaging.
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Jan 1, 2014
This prospective randomized study compared submucosal resection (SMR) with radiofrequency turbinate volume reduction (RFTVR) in 60 patients with inferior turbinate hypertrophy. Both procedures significantly reduced turbinate volume and improved nasal obstruction symptoms and nasal inspiratory peak flow by 2 months.…
Ultrafast volumetric B1 (+) mapping for improved radiofrequency shimming in 3 tesla body MRI.
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Jan 1, 2014
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 central-slice-based…
Non-linear adaptive phenomena which decrease the risk of infection after pre-exposure to radiofrequency radiation.
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Jan 1, 2014
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 only the bacterial…
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
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 carcinoma and liver…
Passive tracking of linac clinical flow using radiofrequency identification technology.
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Jan 1, 2014
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 in-vault treatment…
A comparative study of radiofrequency assisted versus microdebrider assisted turbinoplasty in cases of inferior turbinate hypertrophy.
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Jan 1, 2014
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 reported at 6 months…
Autophagy and enhanced chemosensitivity in experimental pancreatic cancers induced by noninvasive radiofrequency field treatment.
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Jan 1, 2014
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 ductal epithelial cells…
Effect of radiofrequency microtenotomy on degeneration of tendons: an experimental study on rabbits.
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Jan 1, 2014
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 with a sham-control…
The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.
Research
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Jan 1, 2014
This double-blind, randomized, crossover study examined whether 30 minutes of near-field LTE radiofrequency exposure near the right ear alters resting-state brain activity measured by fMRI. The authors report decreased ALFF in multiple temporal and frontal/paracentral regions after real exposure compared with sham,…
Whole brain EEG synchronization likelihood modulated by long term evolution electromagnetic fields exposure.
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Jan 1, 2014
This conference paper examined whether LTE radiofrequency EMF exposure affects whole-brain EEG functional connectivity. Ten participants completed a crossover, double-blind real versus sham exposure protocol with 30 minutes of exposure per session while 32-channel EEG was recorded. Using synchronization likelihood,…