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Technology and Health Care: Official Journal of the European Society for Engineering and Medicine

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https://www.readbyqxmd.com/read/27911349/quantification-of-vascular-function-changes-under-different-emotion-states-a-pilot-study
#1
Yirong Xia, Licai Yang, Xueqin Mao, Dingchang Zheng, Chengyu Liu
Recent studies have indicated that physiological parameters change with different emotion states. This study aimed to quantify the changes of vascular function at different emotion and sub-emotion states. Twenty young subjects were studied with their finger photoplethysmographic (PPG) pulses recorded at three distinct emotion states: natural (1 minute), happiness and sadness (10 minutes for each). Within the period of happiness and sadness emotion states, two sub-emotion states (calmness and outburst) were identified with the synchronously recorded videos...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27911348/comparison-between-heart-rate-variability-and-pulse-rate-variability-during-different-sleep-stages-for-sleep-apnea-patients
#2
Shuangyan Liu, Jing Teng, Xianghua Qi, Shoushui Wei, Chengyu Liu
BACKGROUND: The usefulness of heart rate variability (HRV) in the clinical research has been verified in numerous studies. However, it is controversy that using pulse rate variability (PRV) as a surrogate of HRV in different clinical applications. OBJECTIVE: We aimed to investigate whether PRV extracted from finger pulse photoplethysmography (Pleth) signal could substitute HRV from ECG signal during different sleep stages by analyzing the common time-domain, frequency-domain and non-linear indices...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27911347/smartphone-applications-for-immersive-virtual-reality-therapy-for-internet-addiction-and-internet-gaming-disorder
#3
Melvyn W B Zhang, Roger C M Ho
There have been rapid advances in technologies over the past decade and virtual reality technology is an area which is increasingly utilized as a healthcare intervention in many disciplines including that of Medicine, Surgery and Psychiatry. In Psychiatry, most of the current interventions involving the usage of virtual reality technology is limited to its application for anxiety disorders. With the advances in technology, Internet addiction and Internet gaming disorders are increasingly prevalent. To date, these disorders are still being treated using conventional psychotherapy methods such as cognitive behavioural therapy...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27911346/influence-of-pelvic-tilt-on-functional-acetabular-orientation
#4
Robert K Zahn, Sarah Grotjohann, Matthias Pumberger, Heiko Ramm, Stefan Zachow, Michael Putzier, Carsten Perka, Stephan Tohtz
BACKGROUND: Pelvic tilt influences acetabular orientation (AO). Anatomical AO can be measured in relation to the anterior pelvic plane (APP), functional AO can be calculated relative to table's plane. OBJECTIVE: To assess to what extent functional AO is determined by pelvic tilt and if APP and table plane give equal information for correct AO. METHODS: AO was evaluated by computed tomography (CT) scans of 138 patients. Pelvic tilt, anatomical and functional AO were measured, differences between the two reference planes were calculated...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27911345/computing-the-influences-of-different-intraocular-pressures-on-the-human-eye-components-using-computational-fluid-structure-interaction-model
#5
Alireza Karimi, Reza Razaghi, Mahdi Navidbakhsh, Toshihiro Sera, Susumu Kudo
BACKGROUND: Intraocular Pressure (IOP) is defined as the pressure of aqueous in the eye. It has been reported that the normal range of IOP should be within the 10-20 mmHg with an average of 15.50 mmHg among the ophthalmologists. Keratoconus is an anti-inflammatory eye disorder that debilitated cornea unable to reserve the normal structure contrary to the IOP in the eye. Consequently, the cornea would bulge outward and invoke a conical shape following by distorted vision. In addition, it is known that any alterations in the structure and composition of the lens and cornea would exceed a change of the eye ball as well as the mechanical and optical properties of the eye...
November 25, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886024/predicting-adherence-to-use-of-remote-health-monitoring-systems-in-a-cohort-of-patients-with-chronic-heart-failure
#6
Lorraine S Evangelista, Hassan Ghasemzadeh, Jung-Ah Lee, Ramin Fallahzadeh, Majid Sarrafzadeh, Debra K Moser
BACKGROUND: It is unclear whether subgroups of patients may benefit from remote monitoring systems (RMS) and what user characteristics and contextual factors determine effective use of RMS in patients with heart failure (HF). OBJECTIVE: The study was conducted to determine whether certain user characteristics (i.e. personal and clinical variables) predict use of RMS using advanced machine learning software algorithms in patients with HF. METHODS: This pilot study was a single-arm experimental study with a pre- (baseline) and post- (3 months) design; data from the baseline measures were used for the current data analyses...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886023/quantifying-the-dynamic-of-osa-brain-using-multifractal-formalism-a-novel-measure-for-sleep-fragmentation
#7
Somayeh Raiesdana
It is thought that the critical brain dynamics in sleep is modulated during frequent periods of wakefulness. This paper utilizes the capacity of EEG based scaling analysis to quantify sleep fragmentation in patients with obstructive sleep apnea. The scale-free (fractal) behavior refers to a state where no characteristic scale dominates the dynamics of the underlying process which is evident as long range correlations in a time series. Here, Multiscaling (multifractal) spectrum is utilized to quantify the disturbed dynamic of an OSA brain with fragmented sleep...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886022/fracture-risk-of-vertebral-bodies-after-cryosurgery-using-a-miniature-cryoprobe-a-biomechanical-in-vitro-analysis-on-human-bones
#8
K Zarghooni, L Westermann, R Sobottke, M Röllinghoff, J Bredow, J Siewe, Peer Eysel, M J Scheyerer
INTRODUCTION: Due to spinal instability and compressive neurologic deficits surgical management is sometimes necessary in patients with metastatic spinal lesions. However, in some cases open surgery is not possible and minimally invasive procedures, like cryoablation, are needed. The aim of the current study was to investigate whether a miniature cryoprobe provides adequate tissue cooling in vertebrae and to evaluate the direct impact of cryosurgery on vertebral body stability. MATERIALS AND METHODS: Twelve thoracic vertebral bodies were harvested from fresh cadavers...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886021/revision-of-orthovoltage-chest-wall-treatment-by-monte-carlo-simulations
#9
R Faghihi, B Zeinali-Rafsanjani, M A Mosleh-Shirazi, A Mosalaei, K Hadad
PURPOSE: Given the high local control rates observed in breast cancer patients undergoing chest wall irradiation by kilovoltage x-rays, we aimed to revisit this treatment modality by accurate calculation of dose distributions using Monte Carlo simulation. METHODS AND MATERIAL: The machine components were simulated using the MCNPX code. This model was used to assess the dose distribution of chest wall kilovoltage treatment in different chest wall thicknesses and larger contour or fat patients in standard and mid sternum treatment plans...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886020/cranial-electrotherapy-stimulation-affects-mood-state-but-not-levels-of-peripheral-neurotrophic-factors-or-hypothalamic-pituitary-adrenal-axis-regulation
#10
Hee-Tae Roh, Wi-Young So
Cranial electrotherapy stimulation (CES) is reported to aid in relieving symptoms of depression and anxiety, though the mechanism underlying this effect remains unclear. Therefore, the present study aimed to evaluate changes in the hypothalamic-pituitary-adrenal (HPA) axis response and levels of neurotrophic factors, as well as changes in mood state, in patients undergoing CES therapy. Fifty healthy postmenopausal women were randomly assigned to either a Sham CES group (n = 25) or an Active CES group (n = 25)...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886019/an-analysis-of-a-digital-variant-of-the-trail-making-test-using-machine-learning-techniques
#11
Jessamyn Dahmen, Diane Cook, Robert Fellows, Maureen Schmitter-Edgecombe
BACKGROUND: The goal of this work is to develop a digital version of a standard cognitive assessment, the Trail Making Test (TMT), and assess its utility. OBJECTIVE: This paper introduces a novel digital version of the TMT and introduces a machine learning based approach to assess its capabilities. METHODS: Using digital Trail Making Test (dTMT) data collected from (N = 54) older adult participants as feature sets, we use machine learning techniques to analyze the utility of the dTMT and evaluate the insights provided by the digital features...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886018/radiofrequency-activated-pmma-augmentation-through-cannulated-pedicle-screws-a-cadaver-study-to-determine-the-biomechanical-benefits-in-the-osteoporotic-spine
#12
T Karius, C Deborre, D C Wirtz, C Burger, A Prescher, A Fölsch, K Kabir, R Pflugmacher, H Goost
INTRODUCTION: PMMA-augmentation of pedicle screws strengthens the bone-screw-interface reducing cut-out risk. Injection of fluid cement bears a higher risk of extravasation, with difficulty of application because of inconsistent viscosity and limited injection time. OBJECTIVE: To test a new method of cement augmentation of pedicle screws using radiofrequency-activated PMMA, which is suspected to be easier to apply and have less extravasations. METHODS: Twenty-seven fresh-frozen human cadaver lumbar spines were divided into 18 osteoporotic (BMD ≤ 0...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886017/influence-of-proprioceptive-insoles-on-spinal-curvature-in-patients-with-slight-idiopathic-scoliosis
#13
Christine Noll, Vanessa Steitz, Dorothea Daentzer
PURPOSE: Proprioceptive insoles are known to influence the functions of posture and gait by modulations of the sensory structures at the sole of the foot. Literature has shown that they could improve the position of the upper-body in patients with postural complaints of the musculoskeletal system. The aim of this study was to evaluate the influence of proprioceptive insoles on the spinal curvature in patients with slight idiopathic scoliosis. PATIENTS AND METHODS: Eighteen patients were included in this prospective, single-centre, randomized study...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27886016/an-internet-of-things-platform-architecture-for-supporting-ambient-assisted-living-environments
#14
Charalampos Tsirmpas, Ioannis Kouris, Athanasios Anastasiou, Kostas Giokas, Dimitra Iliopoulou, Dimitris Koutsouris
Internet of Things (IoT) is the logical further development of today's Internet, enabling a huge amount of devices to communicate, compute, sense and act. IoT sensors placed in Ambient Assisted Living (AAL) environments, enable the context awareness and allow the support of the elderly in their daily routines, ultimately allowing an independent and safe lifestyle. The vast amount of data that are generated and exchanged between the IoT nodes require innovative context modeling approaches that go beyond currently used models...
November 18, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27858725/2-year-clinical-results-of-patients-with-sacroiliac-joint-syndrome-treated-by-arthrodesis-using-a-triangular-implant-system
#15
Rahel Bornemann, Philip P Roessler, Andreas Strauss, Kirsten Sander, Yorck Rommelspacher, Dieter C Wirtz, Robert Pflugmacher, Sönke P Frey
BACKGROUND: Sacroiliac joint (SIJ) syndrome can cause various symptoms and may also be one reason for persistent low back pain, especially in patients with prior spinal fusions. If conservative treatments fail to improve symptoms, arthrodesis surgery can be considered. Minimally invasive approaches have emerged recently providing a good alternative to conventional methods. A novel triangular implant system (iFuse) can achieve an arthrodesis of the SIJ without the use of additional screws or bone material...
November 4, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27689553/personalized-reminiscence-therapy-m-health-application-for-patients-living-with-dementia-innovating-using-open-source-code-repository
#16
Melvyn W B Zhang, Roger C M Ho
Dementia is known to be an illness which brings forth marked disability amongst the elderly individuals. At times, patients living with dementia do also experience non-cognitive symptoms, and these symptoms include that of hallucinations, delusional beliefs as well as emotional liability, sexualized behaviours and aggression. According to the National Institute of Clinical Excellence (NICE) guidelines, non-pharmacological techniques are typically the first-line option prior to the consideration of adjuvant pharmacological options...
October 22, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27792022/using-computer-simulation-for-optimal-staffing-a-case-for-the-patient-registration-process-of-a-hospital
#17
Sung J Shim, Arun Kumar, Roger Jiao
BACKGROUND: Some healthcare managers use computer simulation to assist with staffing. As staffing actions are usually slow to evolve and long term in nature, computer simulation can provide the opportunity to evaluate different alternatives at substantially lower costs with fewer risks. OBJECTIVE: Using computer simulation, this paper seeks to determine the optimal number and allocation of clerks involved in the patient registration process of a hospital. METHODS: This paper is based on a case study conducted in a hospital and uses historical data provided by the hospital in simulating the patient registration process...
October 14, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27792021/modeling-and-analysis-of-visual-digital-impact-model-for-a-chinese-human-thorax
#18
Jin Zhu, Kai-Ming Wang, Shu Li, Hai-Yan Liu, Xiao Jing, Xiao-Fang Li, Yi-He Liu
OBJECTIVE: To establish a three-dimensional finite element model of the human chest for engineering research on individual protection. METHOD: Computed tomography (CT) scanning data were used for three-dimensional reconstruction with the medical image reconstruction software Mimics. The finite element method (FEM) preprocessing software ANSYS ICEM CFD was used for cell mesh generation, and the relevant material behavior parameters of all of the model's parts were specified...
October 14, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27689563/relative-lower-body-circumferences-are-associated-with-the-prevalence-of-metabolic-syndrome-and-arterial-stiffness
#19
Yong Hwan Kim, Wi-Young So
Body circumference is a known health-related factor. This cross-sectional study aimed to investigate the associations of relative lower body circumferences with metabolic syndrome (MetS) and arterial stiffness (AS) in 684 men aged > 40 (mean, 54.6 ± 8.5) years. Participants were measured for waist, thigh, and calf circumferences; underwent blood tests and blood pressure measurements to detect MetS; and received brachial ankle pulse wave velocity measurements to measure AS. The waist-to-thigh, waist-to-calf, and thigh-to-calf circumferences were calculated and classified into quartiles...
September 26, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27689565/comparison-of-knee-characteristics-between-professional-and-amateur-golfers-during-the-downswing
#20
Tae-Gyu Kim, Wi-Young So
Evaluating the biomechanical and performance factors of the knee joint during golf swing can provide objective and quantitative information about improving the performance and development of efficient physical training, as the legs are important for achieving an efficient swing and maximum speed of the club head in golf. In the present study, kinematic movements of the knee joint were identified during the downswing by using 3-dimensional motion analysis, and isokinetic strength was measured with driver and 5-iron clubs in 15 professional (PRO) golfers and 10 amateur (AMA) golfers...
September 23, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
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