Abstract This study aims to understand the impact of backpack carriage, a regular activity for many, on back muscles and joint mobility during walking so that clinicians can develop strategies or products ensure individuals’ safety well-being. Surface electromyography (EMG) XSENS Awinda motion capture systems were used analyze effects carrying (12% body weight) erector spinae multifidus muscles, as well spinal, hip, knee, ankle joints. Subjects walked at 4 km/h flat inclined surfaces. Paired...

The accuracy of the Leksell GammaPlan, dose planning system Gamma Knife Model-B, was evaluated near tissue inhomogeneities, using gel dosimetry method. lack electronic equilibrium around small-diameter gamma beams can cause calculation errors in neighborhood an air-tissue interface. An experiment designed to investigate effects inhomogeneity paranosal sinuses cavities. homogeneous phantom a spherical glass balloon 16 cm diameter, filled with MAGIC gel; i.e., normoxic polymer gel. Two hollow...

The Sign Language Recognition (SLR) Problem is a highly important research topic, because of its ability to increase the interaction between people who are hearing-impaired or impediment in speech. We propose simple but robust system. proposed system consists three main steps. First we apply segmentation face and hand region by using Fuzzy C-Means Clustering (FCM) Thresholding. FCM clustering technique which employs fuzzy partitioning, an iterative algorithm. After hands segmented, feature...

Segmentation of tissues in magnetic resonance images is essential especially for a radiologist to be able identify disease, tumors, or any tissue. In image there exists many different types each with characteristic T/sub 1/ and 2/ decay times proton densities. If these parameters can calculated from the regular images, type tissue could also determined on MR independent hardware characteristics. One such important limitation varying sensitivity an imaging coil spatially. algorithms cannot...

The primary goal in this study was to investigate 3-D dose distribution, near the areas of tissue inhomogeneities, Gamma Knife Radiosurgery with gel dosimetry. spherical glass balloon a diameter 16 cm filled forms homogeneous phantom; and an identical two corks placed on each side represent air cavities inhomogeneous phantom. Dose calibration is performed by irradiating vials at known doses then utilizing R2- curve. Stereotactic frames fudicial markers were attached phantoms for MR scanning...

In this paper, we propose multifrequency body impedance measurement technique for monitoring the onset of vagus nerve stimulation. response to transcutaneous electrical stimulation, changes occur in fluids i.e. fluid shifts extracellular and intracellular media that can be assessed by Cole parameters R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">e</sub> xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> before after stimulus, measuring...

Magnetic resonance imaging (MRI) presents an alternative method over conventional X-ray based modalities for guiding minimal invasive surgeries. However, lack of commercial MRI safe and functional interventional instruments devices is the main obstacle realization procedures under MRI. Herein, as a novel passive tracking method, $\mathrm{Fe}^{3+}$ ions binded melanin nanoparticles (MNPs) were used coating to enhance visibility nitinol guidewire. chelating ability MNPs was found be...

Heart Rate Variability (HRV) is the millisecond changes between heartbeats. Sympathetic and parasympathetic factors affect heart rhythm, which regulated by autonomic nervous system, vagus nerve. Stimulating nerve with cold water intake frequency distribution of HRV. Stimulation HRV power spectrum subjects compared to their resting state: while low-frequency (LF) component ratio decreases (from 34.6 28.9 percent), high-frequency (HF) increases (21.4 30.3 percent). Repeated stimulation has an...

Cerebral blood flow (CBF) calculation in perfusion weighted imaging starts with the selection of arterial input function (AIF). CBF indicates initial value tissue residue found by deconvolving curve AIF. Conventional approach deconvolution is singular decomposition (SVD) method. This technique not successful if problem ill-posed, which case when values solution decrease rapidly. The ill-posed nature generally resolved through model independent method based on Tikhonov regularization. In this...

In this paper, single side body impedance spectroscopy is performed between wrist and ankle in response to auricular transcutaneous electrical vagus stimulation, obtain the Cole parameters R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">o</sub> , xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> f xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> . Following a resting period of 5 minutes supine position, left ear nerve was stimulated for 3...

Gait analysis is a process that qualified health specialists investigate subject's posture differences in an environment where this person walks. can be enhanced when it recorded with the presence of sEMG system. EMG diagnostic medical device demonstrate muscle activations and deactivations. The purpose study to display how activation patterns single alter during his/her locomotive movements gait. Even healthy individuals exhibit different their gait data. When subject who has disabilities...