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Epidural spinal cord stimulation (SCS) is a promising therapy for spinal cord injury (SCI). This paper combines experimental data from epidurally-stimulated human paraplegic patients with computational models of SCS to identify the electric field features correlated with the patients' ability to stand. We locate the spinal cord regions most critical to stimulated standing and find that the most informative...
This paper presents a model and the validation of microwave radiation into the surrounding breast tissues, these patterns are obtained by applying ablation therapy.
Nonlinearity plays a significant role in high-intensity focused ultrasound (HIFU) treatment since the generation of higher harmonic frequency components enhances absorption and thus heating effects. High-B/A fat layer commonly appears in the propagation path so that HIFU fields could be affected by nonlinearity and attention needs to be paid to the changes since caused for nonlinearity may not be...
Simulation of the electromagnetic response of the human body relies upon efficient computational models. The objective of this paper is to describe a new platform-independent and computationally-efficient full-body electromagnetic model, the Visible Human Project® (VHP)-Female v.3.0 and to outline its distinct features. We also report model performance results using two leading commercial electromagnetic...
Poor health-related behaviors represent a major challenge to healthcare due to their significant impact on chronic and acute diseases and their effect on the quality of life. Recent advances in technology have enabled an unprecedented opportunity to assess objectively, unobtrusively and continuously human behavior and have opened the possibility of optimizing individual-tailored, precision interventions...
Kidney cancer is a severe disease which can be treated non-invasively using high-intensity focused ultrasound (HIFU) therapy. However, tissue in front of the transducer and the deep location of kidney can cause significant losses to the efficiency of the treatment. The effect of attenuation, refraction and reflection due to different tissue types on HIFU therapy of the kidney was studied using a nonlinear...
Magnetic fields associated with gradient switching in magnetic resonance imaging (MRI) systems produce electric fields. In the case of fast switching fields of high magnitude, peripheral nerves stimulation (PNS) may occur [1], [2]. Several research groups have conducted investigations of PNS in human subjects, e.g. [1]-[9]. The stimulation threshold expressed as a function of the time derivative of...
An approach for reconstructing the sound velocity distribution in the breast was previously proposed and verified by simulations, and the present study investigated the approach experimentally. The experimental setup comprised a 5-MHz, 128-channel linear array, a programmable digital array system, a phantom containing objects with differing physical properties, and a computer. The array system was...
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