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Dowdell Stephen - - 2013
Purpose: To compare motion effects in intensity modulated proton therapy (IMPT) lung treatments with different levels of intensity modulation.Methods: Spot scanning IMPT treatment plans were generated for ten lung cancer patients for 2.5Gy(RBE) and 12Gy(RBE) fractions and two distinct energy-dependent spot sizes (σ ∼8-17 mm and ∼2-4 mm). IMPT plans ...
Santos-Concejero Jordan - - 2013
The main purpose of this study was to investigate the relationship between a novel biomechanical variable, the stride angle, and running economy (RE) in a homogenous group of long-distance athletes. Twenty-five well-trained male runners completed 4 minute running stages on a treadmill at different set velocities. During the test, biomechanical ...
Di Biase Luigi - - 2013
During radiofrequency ablation, effective contact is crucial in determining lesions efficacy. In this study we compared operators' ability to assess contact pressure using visual and tactile feedbacks together or alone in an experimental model. In a in-vitro experimental setup replicating manual catheter manipulation, and recording the applied force, evaluators were ...
Viner Tabitha C - - 2013
Mortality due to electrical injury in wildlife may occur in the form of lightning strike or power line contact. Evidence of electrical contact may be grossly obvious, with extensive singeing, curling, and blackening of feathers, fur, or skin. Occasionally, changes may be subtle, owing to lower current or reduced conductivity, ...
Fleisig Glenn S GS American Sports Medicine Institute, Birmingham, AL 35205, USA. - - 2013
The purpose of this study was to quantify trunk axial rotation and angular acceleration in pitching and batting of elite baseball players. Healthy professional baseball pitchers (n = 40) and batters (n = 40) were studied. Reflective markers attached to each athlete were tracked at 240 Hz with an eight-camera ...
Vasudevan Balamurali - - 2013
The aim of the present study was to compare the objective and subjective visual performance of three different soft multifocal contact lenses. 10 subjects (habitual soft contact lens wearers) between the ages of 40 and 45 years participated in the study. Three different multifocal silicone hydrogel contact lenses (Acuvue Oasys, ...
Clatworthy Philip L - - 2013
Background: Homonymous visual field defects (VFD) are common following stroke, and often recover, partially or fully, by unknown mechanisms. In clinical practice, visual field recovered on perimetry is often considered perceptually normal. However, studies have shown contrast sensitivity (CS) deficits in patients with stroke and homonymous VFD. This study investigated ...
Ticcinelli Valentina - - 2013
The haemodynamics of skin microcirculation can be quantitatively evaluated by Laser Doppler Fluxmetry (LDF). LDF signal in human skin shows periodic oscillations. Spectral analysis by wavelet transform displays six characteristic frequency intervals (FI) from 0.005 to 2 Hz, related to distinct vascular structures activities: heart (0.6-2 Hz), sympathetic respiratory (0.145-0.6 ...
Kim Chang-Hee - - 2013
The aim of this study was to characterize the clinical features and typical positional nystagmus in patients with persistent geotropic direction-changing positional nystagmus (DCPN) and address the possible pathophysiology of the disease. Furthermore, the proportion of light cupula among the patients showing geotropic DCPN was investigated to assume the incidence ...
Lockie Robert G - - 2013
The mechanisms for speed performance improvement from sprint (ST) and plyometrics (PT) training, especially relating to stance kinetics, require investigation in field sport athletes. This study determined the effects of ST and PT on 10-meter (m) sprint time (0-5, 5-10, 0-10 m intervals), step kinematics (step length and frequency, contact ...
Tsang Derek S - - 2013
Reduction of respiratory motion is desirable to reduce the volume of normal tissues irradiated, to improve concordance of planned and delivered doses, and to improve image guided radiation therapy (IGRT). We hypothesized that pretreatment lorazepam would lead to a measurable reduction of liver motion. Thirty-three patients receiving upper abdominal IGRT ...
- - 2013
NEW BEDS that allow patients to close curtains and control the lighting themselves are being trialled.
Pataky Todd C - - 2013
During power grasp, the number of local force maxima reflects either the central nervous system's preferential use of particular hand regions, or anatomical constraints, or both. Previously, both bimodal and trimodal force maxima have been hypothesized for power grasp of a cylindrical handle. Here we measure the number of local ...
Hayashi Tetsuo - - 2013
An in vivo kinematic MRI analysis of cervical spinal motion in human subjects. To identify associations between disc degeneration in the subaxial cervical spine and upper cervical spinal motion in patients with general age-related cervical spondylosis. The kinematic relationship between the occipital-atlantoaxial complex and subaxial cervical spine in patients with ...
Hanke Sylvia - - 2013
Using acoustic resonators, we have studied the occurrence and the magnitude of partial slip between glass spheres and polymer surfaces. The measurement relies on the shifts of resonance frequency and bandwidth, Δf and ΔΓ, induced by the contact as well as the dependence of Δf and ΔΓ on the amplitude ...
Ali Musheera M - - 2013
Recently, much interest has been generated in the use of intense pulsed light (IPL) sources in the treatment of various skin conditions. However, the underlying mechanism for its therapeutic action has not been elucidated. To investigate the effect of IPL on the in vivo expression of transforming growth factor beta1 ...
Horng Ray-Hua - - 2013
High-brightness p-side up AlGaInP-based red light emitting diodes (LEDs) with dot-patterned GaAs contact layer and surface rough structure are presented in this article. Initial LED structure of p-GaP/AlGaInP/GaAs is epitaxially grown using metal organic chemical vapor deposition technique. Using novel twice transferring process, the p-GaP layer is remained at the ...
Lewald Jörg - - 2013
Objective: Beyond visual field defects, patients with hemianopia have been suggested to perceive horizontal visual space in a distorted manner. However, the pattern of these distortions remained debatable. The aim of this study was to estimate the geometry of the visual representation of space in hemianopia using an auditory marker. ...
Timmis Matthew A - - 2013
Vision is of paramount importance in regulating adaptive gait. Using three-dimensional motion analysis, the current study investigated how central visual field loss (CFL) affects step ascent. Ten patients with chronic CFL (77±10 years) and 13 visual normal participants (72±6 years) walked up to and ascended a single step (of varying ...
Kuba Robert - - 2013
The main purpose of this retrospective analysis was to evaluate the incidence and lateralization value of rhythmic ictal nonclonic hand (RINCH) motions in patients with temporal lobe epilepsy (TLE), who were classified as Engel I at least 2 years after epilepsy surgery. We analyzed the distribution of ictal activity at ...
Suzuki Akinobu A Department of Orthopaedic Surgery, University of California at Los Angeles, Los Angeles, CA, - - 2013
Retrospective analysis of kinetic magnetic resonance images. To define the prevalence of degenerative cervical spondylolisthesis in symptomatic patients and to analyze the motion characteristics and influence on the spinal canal at the affected level. When compared with lumbar spondylolisthesis, there are few studies evaluating cervical spondylolisthesis, and the prevalence and ...
Meccia Bradley - - 2013
Previous in vivo fluoroscopy studies have documented that axial rotation for patients having a TKA was significantly less than those having a normal knee. In fact, many subjects having a TKA experience a reverse axial rotation pattern where the femur internally rotates with increasing flexion. However, no previous studies have ...
Santos-Concejero J J UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa ; Department of Physical Education and Sport, Faculty of Physical Activity and Sport, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, - - 2013
The purpose of this study was to investigate the relationship between biomechanical variables and running economy in North African and European runners. Eight North African and 13 European male runners of the same athletic level ran 4-minute stages on a treadmill at varying set velocities. During the test, biomechanical variables ...
Lin Yuting - - 2013
The objective of this work is to test the validity of the Gaussian approximation for prostate motion through characterization of its spatial distribution. Real-time intrafraction prostate motion was observed using Calypso 4-dimensional (4D) nonradioactive electromagnetic tracking system. We report the results from a total of 1024 fractions from 31 prostate ...
Raghuram Aparna A Department of Ophthalmology, Boston Children's Hospital, Boston, Massachusetts 02215, USA. - - 2013
To investigate photoreceptor and postreceptor retinal function in patients with congenital stationary night blindness (CSNB). Forty-one patients with CSNB (ages 0.19-32 years) were studied. ERG responses to a series of full-field stimuli were obtained under scotopic and photopic conditions and were used to categorize the CSNB patients as complete (cCSNB) ...
Peng Y - - 2013
Purpose: To create a patient respiratory management system and patient self-practice tool using the Wii remote, a widely available consumer hardware product.Methods: The Wii remote (Wiimote) (Nintendo, Redmond, WA) contains an infrared (IR) camera that can track up to four spots whose coordinates are reported to a host computer via ...
Troupis John M - - 2013
A 22-year-old man with no history of trauma and normal plain films, ultrasound, and magnetic resonance imaging presents with several months of increasingly severe pain and clicking in the right wrist. He is clinically diagnosed with midcarpal instability and undergoes a 4-dimensional computed tomography scan of his wrist for further ...
Tan Yee Yong - - 2013
The utilization of radio-frequency (RF) communication technology in healthcare application, especially in the transmission of health-related data such as biomedical signal and patient information is often perturbed by electromagnetic interference (EMI). This will not only significantly reduce the accuracy and reliability of the data transmitted, but could also compromise the ...
Arazpour Mokhtar M Orthotics and Prosthetics Department, University of Social Welfare and Rehabilitation Science , Tehran , Iran - - 2014
Abstract Objectives: Gait training has been shown to improve the walking performance of spinal cord-injured (SCI) patients. The use of powered hip orthoses (PHO) during gait training is one approach which could potentially improve rehabilitative outcomes for such subjects. The aim of this study was therefore to evaluate the influence ...
De Bortoli Alessandro - - 2013
 INTRODUCTION: Previous studies have validated the use of impedance fall as a measure of the effects of ablation. We investigated whether catheter-to-tissue contact force correlated with impedance fall during atrial fibrillation ablation. A total of 394 ablation points from 35 patients who underwent atrial fibrillation ablation were selected and analyzed ...
Fenton L - - 2013
BACKGROUND: A preliminary investigation showed that ultraviolet (UV) emissions from compact fluorescent lamps (CFLs) can pose a risk to the skin of photosensitive individuals. OBJECTIVES: To carry out a larger scale study, in patients with a range of photodermatoses, to assess this risk. To determine a safe alternative light source ...
Oda Kazuha - - 2013
OBJECTIVE: Variations in the effects of masking noise were evaluated in different pathologies of sensorineural hearing loss. STUDY DESIGN: Retrospective chart review. SETTING: Tertiary referral center. PATIENTS: Fifty-five ears of 30 patients with sensorineural hearing loss who underwent noise audiometry in the Department of Otolaryngology-Head and Neck Surgery, Tohoku University ...
Moura Ana Laura A - - 2013
Purpose. To investigate the pupillary light reflex (PLR) of patients with severe loss of vision due to Leber's Hereditary Optic Neuropathy (LHON) in the context of a proposed preservation of melanopsin-expressing retinal ganglion cells (mRGCs). Methods. Ten LHON patients (7 M; 51.6 ±14.1 yo) with visual acuities ranging from 20/400 ...
Meuleman Jos - - 2013
Robotic gait training has developed since the end of the 20(th) century, yet there is much room for improvement in the design of the robots. With the conventional exoskeleton structures, donning of patients in a gait trainer usually is a cumbersome process due to the need of joint alignments and ...
Shibuta Yoshiko - - 2013
OBJECTIVE: Amyotrophic lateral sclerosis (ALS) is characterised by the increased excitability of motoneurons and heterogeneous loss of axons. The heterogeneous nature of the disease process among fibres may show variability of excitability in ALS. METHODS: Multiple nerve excitability tests were performed in 28 ALS patients and 23 control subjects, by ...
Sedda A - - 2013
Visual illusions have been used to explore implicit perception in neglect. Previous studies have highlighted differences between length and surface illusion perception in neglect, but much less is known about depth illusion perception. In the Ponzo illusion (a classic depth illusion), two converging oblique lines modulate the perceived length of ...
Neves Silvana Maria Véras - - 2013
Recent studies have demonstrated the efficacy of coherent light therapy from the red region of the electromagnetic spectrum on the tissue-healing process. This study analysed the effect of non-coherent light therapy (light-emitting diode-LED) with or without silver sulfadiazine (sulpha) on the healing process of third-degree burns. In this study, 72 ...
Châtillon C E - - 2013
OBJECTIVE: High frequency oscillations (HFOs) are brief electroencephalographic events associated with epileptic activity, and likely representing biological markers of the epileptogenic zone. HFOs are usually detected with intracranial EEG and detection is influenced by contact size. The size of commercially available intracerebral electrodes varies widely. This study assesses HFO detection ...
Fadda Antonello A Technology and Health Department, Istituto Superiore di Sanità, Rome, Italy. - - 2013
Sustained pattern stimulation in normal subjects induces adaptive changes in pattern electroretinogram (PERG), an effect that has been interpreted as a response of glial cells and retinal ganglion cells (RGC). The aim of this study was to compare the effect in normal subjects and in multiple sclerosis patients without previous ...
Miwa Toshitada - - 2013
STUDY DESIGN:: Case-control study. OBJECTIVES:: The purpose of this study is to determine finger motion of patients with cervical myelopathy during finger tapping cycles. SUMMARY OF BACKGROUND DATA:: A major symptom of patients with compressive cervical myelopathy is finger clumsiness. Therefore, understanding finger motion is prerequisite to assessing the severity ...
Umeyama Shinji - - 2013
ABSTRACT. Multichannel functional near-infrared spectroscopy measurements involve the placement of many probes on a subject's head. A stable close contact between the probe and head surface is essential. We propose a way to detect two types of problematic probe contacts from the measurement data: an unstable contact whose light transmission ...
Skaat Alon - - 2013
To evaluate a novel objective perimetry using multifocal chromatic pupil light reflex in normal participants and patients with photoreceptor dysfunction, and to relate this new technique with subjective dark-adapted chromatic Goldmann perimetry. Thirty-two eyes of 17 retinitis pigmentosa (RP) or cone-rod dystrophy patients and 20 eyes of 12 healthy individuals ...
Umeyama Shinji - - 2013
ABSTRACT. Multichannel functional near-infrared spectroscopy measurements involve the placement of many probes on a subject's head. A stable close contact between the probe and head surface is essential. We propose a way to detect two types of problematic probe contacts from the measurement data: an unstable contact whose light transmission ...
Bonaparte James P - - 2013
Abstract The purpose of this study is to test the hypothesis that increasing the force applied on the skin by the Cutometer MP580 probe will result in a decrease in the skin elasticity measures. Specifically, this study assessed the probe intrinsic weight plus the addition of a light mass (10 g ...
Chen Chiung Chu CC Department of Neurology, Chang Gung Memorial Hospital and University, No. 5, Fusing Street, Gueishan Hsien, Taoyuan County, Taipei, Taiwan. - - 2013
Growing evidence suggests that spontaneous oscillatory low-frequency synchronization in the subthalamic nuclei (STN) may modulate motor performance in patients with Parkinson's disease (PD). To explore this in more detail, 15 PD patients chronically implanted with deep brain stimulation (DBS) electrodes in both STN were stimulated bilaterally at 5, 10, 20, ...
Kanekar Neeta - - 2013
Deficit in balance control is a common and often an initial disabling symptom of multiple sclerosis (MS). The purpose of this study was to investigate if a light finger touch contact with a stationary surface is effective in improving upright postural stability in MS. Eleven individuals with relapsing-remitting MS were ...
Raethjen Jan - - 2013
Essential tremor (ET) follows an autosomal dominant type of inheritance in the majority of patients, yet its genetic basis has not been identified. Its exact origin is still elusive, but coherence measurements between electromyography tremor bursts and electroencephalography unequivocally demonstrate a correlation. We tested these measurements in 37 healthy first-degree ...
Dorman Michael F MF Department of Speech and Hearing Science, Arizona State University, Tempe, AZ 85258, USA. - - 2013
The authors describe the localization and speech-understanding abilities of a patient fit with bilateral cochlear implants (CIs) for whom acoustic low-frequency hearing was preserved in both cochleae. Three signals were used in the localization experiments: low-pass, high-pass, and wideband noise. Speech understanding was assessed with the AzBio sentences presented in ...
Sweetow Robert W - - 2013
A variety of noises have been employed for decades in an effort to facilitate habituation, mask, or suppress tinnitus. Many of these sounds have reportedly provided benefit, but success has not been universal. More recently, musical stimuli have been added as a sound therapy component. The potential advantages of using ...
Merola Aristide - - 2013
BACKGROUND: Subthalamic Nucleus Deep Brain Stimulation (STN-DBS) represents a valid therapeutic option for advanced Parkinson's disease (PD), leading to a significant amelioration of motor fluctuations and levodopa-induced involuntary movements (IM). This study address the issue of whether stimulation frequency may influence the control of IM in STN-DBS treated patients, comparing ...
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