A5011861699- Electromagnetic Fields and Biological Effects
- Transcranial Magnetic Stimulation Studies
- Neuroscience and Neural Engineering
- Wireless Body Area Networks
- Muscle activation and electromyography studies
- Advanced MRI Techniques and Applications
- Planarian Biology and Electrostimulation
- Electromagnetic Compatibility and Measurements
- Tissue Engineering and Regenerative Medicine
- Microbial Inactivation Methods
- Noise Effects and Management
- Nerve injury and regeneration
- Pain Management and Treatment
- Spaceflight effects on biology
- Energy Harvesting in Wireless Networks
- Advanced Neuroimaging Techniques and Applications
- Functional Brain Connectivity Studies
- Optical Imaging and Spectroscopy Techniques
- Advances in Oncology and Radiotherapy
- Forensic Entomology and Diptera Studies
- Ultrasound Imaging and Elastography
- Ion-surface interactions and analysis
- Molecular Communication and Nanonetworks
- Meningioma and schwannoma management
- Musculoskeletal pain and rehabilitation
Sapienza University of Rome
2019-2025
Athinoula A. Martinos Center for Biomedical Imaging
2019-2023
Massachusetts General Hospital
2019-2023
Harvard University
2019-2020
Abstract Objective: This study introduces the effective electric field (Eeff) as a novel observable for transcranial magnetic stimulation (TMS) numerical dosimetry. Eeff represents component aligned with local orientation of cortical and white matter neuronal elements. To assess utility predictive measure TMS outcomes, we evaluated its correlation induced muscle responses compared it against conventional observables, including (E-)field magnitude, components normal tangential to surface....
Wireless technologies spanning at the higher bands of microwave range (i.e., Ka-band) are gaining increasing importance in everyday life. Most recent wireless power transfer (WPT) applications work and millimeter wave (mmW) frequencies, overlapping with new frequency fifth-generation (5G) mobile technology. The spread such novel electromagnetic (EM) sources raised need to investigate their possible effects on population's health. Numerical dosimetry is fundamental assess exposure human body....
Abstract This study aims at quantifying the effect that using different skin conductivity values has on estimation of electric ( E )-field distribution induced by transcranial magnetic stimulation (TMS) and direct current (tDCS) in brain two anatomical models. The -field was calculated with numerical simulations inside MIDA Duke models, assigning to a value estimated from multi-layered model three taken literature. variations local tDCS up 70%. In TMS, minor differences, order 20%, were...
Neuroprotective effects of pulsed electromagnetic fields (PEMFs) have been demonstrated both in vivo and vitro. Moreover, preliminary clinical studies conducted suggested PEMFs as a possible alternative therapy to treat acute ischemic stroke. In this work, we show that it's build-up patient semi-specific head model, where the 3D reconstruction lesion under treatment is inserted human body model "Duke" (v.1.0, Zurich MedTech AG). The will be used randomized, placebo-controlled, double-blind...
Abstract Background Excessive glutamatergic transmission in the striatum is implicated Parkinson's disease (PD) progression. Astrocytes maintain glutamate homeostasis, protecting from excitotoxicity through glutamate–aspartate transporter (GLAST), whose alterations have been reported PD. Noninvasive brain stimulation using intermittent theta‐burst (iTBS) acts on striatal neurons and glia, inducing neuromodulatory effects functional recovery experimental parkinsonism. Objective Because PD...
Peripheral magnetic stimulation (PMS) is emerging as a complement to standard electrical (ES) of the peripheral nervous system (PNS). PMS may stimulate sensory and motor nerve fibers without discomfort associated with ES used for conduction studies. The coils are same ones in transcranial (TMS) lack focality selectiveness stimulation.
The use of electromagnetic (EM) technologies for military applications is gaining increasing interest to satisfy different operational needs, such as improving battlefield communications or jamming counterpart's signals. This achieved by the high-power EM waves in several frequency bands (e.g., HF, VHF, and UHF). When considering vehicles, antennas are present close proximity crew personnel, which thus potentially exposed high fields.A typical exposure scenario was reproduced numerically...
In this work, the electromagnetic field induced inside biological tissues by planewave exposure is numerically investigated. The results obtained on an anthropomorphic human body model were compared with those from a multilayer planar slab. analysis focused two anatomical districts, i.e., wrist and abdomen, whose corresponding slabs built, showed that, even accurately selected sequence, approximation of simplified geometry was not able to fully reproduce E-field distribution extended region.
A new miniaturized figure-of-eight coil (μCoil) for TMS applications has been developed taking advantage of the Flex circuit technology. First experiments on volunteers demonstrated ability μCoil to elicit sensorial action potentials peripheral nervous system. The necessity reducing size standard stimulator arises from poor spatial resolution latter. This study aims model and electromagnetic fields induced inside arm during nerve stimulation. Results confirmed that is capable inducing a...
Numerical evaluation of the electromagnetic (EM) quantities induced inside brain during transcranial magnetic stimulation (TMS) applications is a fundamental step to obtain optimization treatment in terms coil position and current intensity. In this sense, human head model considered properties used characterize tissues have an influence on EM solution. Thus, aim study evaluate how different skin conductivities computational models, i.e. ViP Duke MIDA, electric field by typical TMS coil.
Millimeter-wave wireless power technology is assuming increasing importance in everyday life, particularly with the recent advancements 5G communication systems. A numerical assessment of exposure to such kind sources allows understand interaction human body and ensure compliance guidelines limits. Due small penetration depth millimeter-waves, analytical models simplified geometries are preferred study type exposure. In this work we considered wrist, aim investigate whether these can be as a...
Computational dosimetry is a powerful tool to numerically evaluate the exposure of human body electromagnetic (EM) field sources. The use detailed and realistic 3D models allows an accurate prediction induced EM quantities. aim this study present improved model female breast that reproduces more realistically shape tissue distribution in chest area. Such was combined with Virtual Population member, Ella, influence applications such as plane-wave exposure. Results suggested useful all...
This study focused on a numerical comparison of the electromagnetic exposure to plane waves in two different female breast models, for dosimetry purposes. As first step, paper presented an improvement modelling well assessed virtual phantom. Then, original and modified models were compared when undergoing wave at 2.45GHz, impinging models. Three polarizations considered. The results highlighted importance using anatomically realistic achieve more accurate dosimetric results.
Wireless technologies working at frequencies between 24 GHz and 28 GHz, are gaining increasing interest in the field of Power Transfer, overlapping with new fifth-generation mobile technology (5G). The diffusion all these electromagnetic (EM) sources reinforced need to investigate their possible effects on population's health. Numerical dosimetry allows this aspect, but characteristics signal relevant for present a complex challenge. In study we evaluate effect different body surfaces...
In this work, near field exposure of the military crew to a vehicular antenna was investigated in realistic scenario. The aim deepen knowledge induced electric (E-)field and SAR inside human body (i.e. Duke, ViP, v.3) when it is standing partially outside vehicle, close proximity radiating antenna. Dosimetric results obtained at 16 MHz showed that, while intensity radiated electromagnetic exceeds guidelines reference limits, E-field values remain well below safety limits.