Archive

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…

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…

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…

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…

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…

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…

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…

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 showed a higher IVF…

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 inclusion of harmonics…

This paper reports routine EMOST (Electro-Magnetic-Own-Signal-Treatment) use with low-frequency, low-intensity electromagnetic fields in two children with chronic constipation and persistent diarrhea. The authors state these conditions were eliminated following treatment. The abstract briefly discusses possible…

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,…

This study evaluated pulsed radiofrequency (PRF) neuromodulation of the suprascapular nerve in 11 patients with chronic shoulder pain from adhesive capsulitis and/or rotator cuff tear. Pain (VAS) and shoulder-related quality of life/function (OSS) were assessed before treatment and monthly after PRF for up to 9…

This study evaluated a cosmetic radiofrequency device (Accent) for facial wrinkle reduction in 45 women receiving four weekly sessions. Patient satisfaction was higher at 6 months than at 1 month after treatment, and the authors suggest the approach may be effective for facial rejuvenation. The abstract emphasizes…

This paper presents a theoretical and experimental demonstration of a photonic RF phase shifter based on a dual-parallel Mach-Zehnder modulator using a two-drive scheme. The approach aims to mitigate residual optical carrier effects and avoid a lowest-frequency limitation from an optical filter by driving the…

This occupational exposure assessment monitored surgeons during 11 surgeries using monopolar electro surgery units and measured electric and magnetic field strengths during cutting and coagulating modes. Electric fields near the cable at 10 cm were reported in the hundreds of V/m, while magnetic fields were