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Journal of Healthcare Engineering

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https://www.readbyqxmd.com/read/29887982/analysis-of-bone-mineral-density-content-of-paratroopers-and-hoopsters
#1
Yixue Luo, Chenyu Luo, Yuhui Cai, Tianyun Jiang, Tianhong Chen, Wenyue Xiao, Junchao Guo, Yubo Fan
The different mechanical stimulus affects the bone mass and bone strength. The aim of this study was to investigate the effect of landing posture of the hoopster and paratrooper on the bone mass. In this study, 39 male participants were recruited including 13 paratroopers, 13 hoopsters, and 13 common students (control groups). Bone area (BA), BMD and BMC of calcaneus, and 1-5th of the metatarsus, hip, and lumbar spine (L1 -L4 ) were measured by the dual-energy X-ray absorptiometry. Also, the vertical ground reaction forces (GRFs) of hoopsters and paratroopers were measured by the landing of 1...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29887981/image-processing-in-ophthalmology
#2
EDITORIAL
Robert Koprowski, Anna Nowińska, Sławomir Wilczynski, Michele Lanza, Vasyl Molebny, Renato Ambrosio
No abstract text is available yet for this article.
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29861884/a-handy-preterm-infant-incubator-for-providing-intensive-care-simulation-3d-printed-prototype-and-evaluation
#3
Amira J Zaylaa, Mohamad Rashid, Mounir Shaib, Imad El Majzoub
Preterm infants encounter an abrupt delivery before their complete maturity during the third trimester of pregnancy. Polls anticipate an increase in the rates of preterm infants for 2025, especially in middle- and low-income countries. Despite the abundance of intensive care methods for preterm infants, such as, but not limited to, commercial, transport, embrace warmer, radiant warmer, and Kangaroo Mother Care methods, they are either expensive, lack the most essential requirements or specifications, or lack the maternal-preterm bond...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29861883/the-class-surgical-site-characteristics-in-a-clinical-grading-scale-and-anterior-segment-optical-coherence-tomography-a-one-year-follow-up
#4
Judyta Jankowska-Szmul, Edward Wylegala
Purpose: We combined a clinical grading scale and swept source anterior segment OCT to describe the successful and failed CLASS. Material and Methods: 23 patients in the successful group and 17 patients in the failed group were compared in terms of the IBAGS grades and AS-OCT findings at one, three, and twelve months postoperatively. Results: The majority in the successful group presented shallow blebs (91%, 57%, and 52% at 1M, 3M, and 12M, resp...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29861882/injectable-nanocurcumin-formulated-chitosan-g-pluronic-hydrogel-exhibiting-a-great-potential-for-burn-treatment
#5
Le Hang Dang, Thi Hiep Nguyen, Ha Le Bao Tran, Vu Nguyen Doan, Ngoc Quyen Tran
Burn wound healing is a complex multifactorial process that relies on coordinated signaling molecules to succeed. Curcumin is believed to be a potent antioxidant and anti-inflammatory agent; therefore, it can prevent the prolonged presence of oxygen free radicals which is a significant factor causing inhabitation of optimum healing process. This study describes an extension of study about the biofunctional nanocomposite hydrogel platform that was prepared by using curcumin and an amphiphilic chitosan-g-pluronic copolymer specialized in burn wound healing application...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29861881/bayesian-classification-models-for-premature-ventricular-contraction-detection-on-ecg-traces
#6
Manuel M Casas, Roberto L Avitia, Felix F Gonzalez-Navarro, Jose A Cardenas-Haro, Marco A Reyna
According to the American Heart Association, in its latest commission about Ventricular Arrhythmias and Sudden Death 2006, the epidemiology of the ventricular arrhythmias ranges from a series of risk descriptors and clinical markers that go from ventricular premature complexes and nonsustained ventricular tachycardia to sudden cardiac death due to ventricular tachycardia in patients with or without clinical history. The premature ventricular complexes (PVCs) are known to be associated with malignant ventricular arrhythmias and sudden cardiac death (SCD) cases...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29855626/corrigendum-to-distant-supervision-with-transductive-learning-for-adverse-drug-reaction-identification-from-electronic-medical-records
#7
Siriwon Taewijit, Thanaruk Theeramunkong, Mitsuru Ikeda
[This corrects the article DOI: 10.1155/2017/7575280.].
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854371/actuator-assisted-calibration-of-freehand-3d-ultrasound-system
#8
Terry K Koo, Nathaniel Silvia
Freehand three-dimensional (3D) ultrasound has been used independently of other technologies to analyze complex geometries or registered with other imaging modalities to aid surgical and radiotherapy planning. A fundamental requirement for all freehand 3D ultrasound systems is probe calibration. The purpose of this study was to develop an actuator-assisted approach to facilitate freehand 3D ultrasound calibration using point-based phantoms. We modified the mathematical formulation of the calibration problem to eliminate the need of imaging the point targets at different viewing angles and developed an actuator-assisted approach/setup to facilitate quick and consistent collection of point targets spanning the entire image field of view...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854370/performance-analysis-of-ten-common-qrs-detectors-on-different-ecg-application-cases
#9
Feifei Liu, Chengyu Liu, Xinge Jiang, Zhimin Zhang, Yatao Zhang, Jianqing Li, Shoushui Wei
A systematical evaluation work was performed on ten widely used and high-efficient QRS detection algorithms in this study, aiming at verifying their performances and usefulness in different application situations. Four experiments were carried on six internationally recognized databases. Firstly, in the test of high-quality ECG database versus low-quality ECG database, for high signal quality database, all ten QRS detection algorithms had very high detection accuracy ( F 1 >99%), whereas the F 1 results decrease significantly for the poor signal-quality ECG signals (all <80%)...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854369/research-on-improved-depth-belief-network-based-prediction-of-cardiovascular-diseases
#10
Peng Lu, Saidi Guo, Hongpo Zhang, Qihang Li, Yuchen Wang, Yingying Wang, Lianxin Qi
Quantitative analysis and prediction can help to reduce the risk of cardiovascular disease. Quantitative prediction based on traditional model has low accuracy. The variance of model prediction based on shallow neural network is larger. In this paper, cardiovascular disease prediction model based on improved deep belief network (DBN) is proposed. Using the reconstruction error, the network depth is determined independently, and unsupervised training and supervised optimization are combined. It ensures the accuracy of model prediction while guaranteeing stability...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854368/design-and-control-of-a-new-biomimetic-transfemoral-knee-prosthesis-using-an-echo-control-scheme
#11
Mario G Bernal-Torres, Hugo I Medellín-Castillo, Juan C Arellano-González
Passive knee prostheses require a significant amount of additional metabolic energy to carry out a gait cycle, therefore affecting the natural human walk performance. Current active knee prostheses are still limited because they do not reply with accuracy of the natural human knee movement, and the time response is relatively large. This paper presents the design and control of a new biomimetic-controlled transfemoral knee prosthesis based on a polycentric-type mechanism. The aim was to develop a knee prosthesis able to provide additional power and to mimic with accuracy of the natural human knee movement using a stable control strategy...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854367/intensity-based-nonoverlapping-area-registration-supporting-drop-outs-in-terms-of-model-based-radiostereometric-analysis
#12
Ondrej Klima, Petr Novobilsky, Roman Madeja, David Barina, Adam Chromy, Michal Spanel, Pavel Zemcik
A model-based radiostereometric analysis (MBRSA) is a method for precise measurement of prosthesis migration, which does not require marking the implant with tantalum beads. Instead, the prosthesis pose is typically recovered using a feature-based 2D-3D registration of its virtual model into a stereo pair of radiographs. In this study, we evaluate a novel intensity-based formulation of previously published nonoverlapping area (NOA) approach. The registration is capable of performing with both binary radiographic segmentations and nonsegmented X-ray images...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854366/a-kalman-filter-based-common-algorithm-approach-for-object-detection-in-surgery-scene-to-assist-surgeon-s-situation-awareness-in-robot-assisted-laparoscopic-surgery
#13
Jiwon Ryu, Youngjin Moon, Jaesoon Choi, Hee Chan Kim
Although the use of the surgical robot is rapidly expanding for various medical treatments, there still exist safety issues and concerns about robot-assisted surgeries due to limited vision through a laparoscope, which may cause compromised situation awareness and surgical errors requiring rapid emergency conversion to open surgery. To assist surgeon's situation awareness and preventive emergency response, this study proposes situation information guidance through a vision-based common algorithm architecture for automatic detection and tracking of intraoperative hemorrhage and surgical instruments...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854365/strabismus-recognition-using-eye-tracking-data-and-convolutional-neural-networks
#14
Zenghai Chen, Hong Fu, Wai-Lun Lo, Zheru Chi
Strabismus is one of the most common vision diseases that would cause amblyopia and even permanent vision loss. Timely diagnosis is crucial for well treating strabismus. In contrast to manual diagnosis, automatic recognition can significantly reduce labor cost and increase diagnosis efficiency. In this paper, we propose to recognize strabismus using eye-tracking data and convolutional neural networks. In particular, an eye tracker is first exploited to record a subject's eye movements. A gaze deviation (GaDe) image is then proposed to characterize the subject's eye-tracking data according to the accuracies of gaze points...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854364/signal-space-separation-method-for-a-biomagnetic-sensor-array-arranged-on-a-flat-plane-for-magnetocardiographic-applications-a-computer-simulation-study
#15
Kensuke Sekihara
Although the signal space separation (SSS) method can successfully suppress interference/artifacts overlapped onto magnetoencephalography (MEG) signals, the method is considered inapplicable to data from nonhelmet-type sensor arrays, such as the flat sensor arrays typically used in magnetocardiographic (MCG) applications. This paper shows that the SSS method is still effective for data measured from a (nonhelmet-type) array of sensors arranged on a flat plane. By using computer simulations, it is shown that the optimum location of the origin can be determined by assessing the dependence of signal and noise gains of the SSS extractor on the origin location...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854363/wearable-sensors-for-measuring-movement-in-short-sessions-of-mindfulness-sitting-meditation-a-pilot-study
#16
Victor H Rodriguez, Carlos T Medrano, Inmaculada Plaza
Mindfulness techniques are useful tools in health and well-being. To improve and facilitate formal training, beginners need to know if they are in a stable sitting posture and if they can hold it. Previous monitoring studies did not consider stability during sitting meditation or were specific for longer traditional practices. In this paper, we have extended and adapted previous studies to modern mindfulness practices and posed two questions: (a) Which is the best meditation seat for short sessions? In this way, the applications of stability measures are expanded to meditation activities, in which the sitting posture favors stability, and (b) Which is the most sensitive location of an accelerometer to measure body motion during short meditation sessions? A pilot study involving 31 volunteers was conducted using inertial sensors...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854362/automated-risk-control-in-medical-imaging-equipment-management-using-cloud-application
#17
Sally M Ghanem, Manal Abdel Wahed, Neven Saleh
Medical imaging equipment (MIE) is the baseline of providing patient diagnosis in healthcare facilities. However, that type of equipment poses high risk for patients, operators, and environment in terms of technology and application. Considering risk management in MIE management is rarely covered in literature. The study proposes a methodology that controls risks associated with MIE management. The methodology is based on proposing a set of key performance indicators (KPIs) that lead to identify a set of undesired events (UDEs), and through a risk matrix, a risk level is evaluated...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854361/a-review-on-the-nonlinear-dynamical-system-analysis-of-electrocardiogram-signal
#18
REVIEW
Suraj K Nayak, Arindam Bit, Anilesh Dey, Biswajit Mohapatra, Kunal Pal
Electrocardiogram (ECG) signal analysis has received special attention of the researchers in the recent past because of its ability to divulge crucial information about the electrophysiology of the heart and the autonomic nervous system activity in a noninvasive manner. Analysis of the ECG signals has been explored using both linear and nonlinear methods. However, the nonlinear methods of ECG signal analysis are gaining popularity because of their robustness in feature extraction and classification. The current study presents a review of the nonlinear signal analysis methods, namely, reconstructed phase space analysis, Lyapunov exponents, correlation dimension, detrended fluctuation analysis (DFA), recurrence plot, Poincaré plot, approximate entropy, and sample entropy along with their recent applications in the ECG signal analysis...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854360/feasibility-of-using-a-novel-2-45-ghz-double-short-distance-slot-coaxial-antenna-for-minimally-invasive-cancer-breast-microwave-ablation-therapy-computational-model-phantom-and-in-vivo-swine-experimentation
#19
R Ortega-Palacios, C J Trujillo-Romero, M F J Cepeda Rubio, A Vera, L Leija, Jose L Reyes, M C Ramírez-Estudillo, F Morales-Alvarez, M A Vega-López
Microwave ablation (MWA) by using coaxial antennas is a promising alternative for breast cancer treatment. A double short distance slot coaxial antenna as a newly optimized applicator for minimally invasive treatment of breast cancer is proposed. To validate and to analyze the feasibility of using this method in clinical treatment, a computational model, phantom, and breast swine in vivo experimentation were carried out, by using four microwave powers (50 W, 30 W, 20 W, and 10 W). The finite element method (FEM) was used to develop the computational model...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29854359/breast-mass-detection-in-digital-mammogram-based-on-gestalt-psychology
#20
Hongyu Wang, Jun Feng, Qirong Bu, Feihong Liu, Min Zhang, Yu Ren, Yi Lv
Inspired by gestalt psychology, we combine human cognitive characteristics with knowledge of radiologists in medical image analysis. In this paper, a novel framework is proposed to detect breast masses in digitized mammograms. It can be divided into three modules: sensation integration, semantic integration, and verification. After analyzing the progress of radiologist's mammography screening, a series of visual rules based on the morphological characteristics of breast masses are presented and quantified by mathematical methods...
2018: Journal of Healthcare Engineering
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