Archive

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…

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…

This laboratory study evaluated how pulsed electric field (PEF) processing affects antioxidant activity and structure of 10–30 kDa corn peptides. Antioxidant activity was assessed via DPPH inhibition and optimized using response surface methodology. Under reported optimal conditions (10 mg/mL, 15 kV/cm, 2,000 Hz),…

This engineering study evaluates mechanical hoop strain in a YBCO coated-conductor double-pancake coil intended for a high-field HTS insert in an NMR magnet. The authors present experimental strain-gauge measurements and analytical stress/strain calculations for a coil operated with and without a stainless steel…

This open-label exploratory pilot study evaluated pulsed electromagnetic field therapy given twice daily for 45 days in 34 people with persistent or recurrent pain after back surgery. Among 30 per-protocol completers, 33% met a responder definition of ≥30% pain intensity reduction, and pain improvements were reported…

This animal study tested whether extremely low-level pulsed EMF (0.034 μG, 0.952 Hz) could suppress induced atrial fibrillation in 17 anesthetized dogs. EMF applied to cervical vagal trunks or across the chest was reported to suppress neural firing in the anterior right ganglionated plexi. The authors report that EMF…

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…

This engineering paper describes a fiber-based method for stable radio-frequency dissemination using a hybrid frequency modulation approach. Two RF components are transmitted simultaneously using a single laser diode, with one component used for phase fluctuation detection and the other providing a compensated stable…

This engineering/physical chemistry study develops an analytical model and uses computer simulations to describe the electric field in oxide films during thermal metal oxidation. It reports that the electrostatic potential drop across the bulk oxide is often limited to about kBT/e, suggesting most of a larger overall…

This cross-sectional questionnaire study assessed how orthopaedic residents and consultants in Karachi used smartphones for clinical work and academics. Most respondents owned smartphones and reported using apps and internet/email, but fewer used them to share clinical data. The paper does not assess electromagnetic…

This engineering/medical physics study used Monte Carlo simulations to examine how a uniform transverse magnetic field affects the dose distribution of a 30 MeV electron beam in a water phantom. The abstract reports substantial changes in depth-dose, including reduced range and a pronounced end-of-range dose peak…

This article describes a mobile phone-based pilot study in egocentric networks of 12 gay men and their peers (44 participants total). Participants completed daily mobile assessments of HIV-transmission and general health behaviors, and phone log data were collected from gay men with Android phones. The paper focuses…

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…

This paper presents an engineering approach for real-time ECG signal processing on a mobile phone with remote transmission to a medical center. The method uses an IIR low-pass filter and Hilbert transform to support R-peak detection and arrhythmia alerting. Reported algorithm performance includes 96.97% sensitivity…

This engineering-focused paper reports the design principle and performance of a MALDI ion source ("MALDI-2") combining rarefied supersonic gas jets with weak electric fields and injection into gas-filled RF multipoles. The abstract reports rapid collisional cooling (

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 fields affect…

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 and increased…

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…