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Healthcare Technology Letters

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https://www.readbyqxmd.com/read/29515816/the-challenge-of-safe-driving-among-elderly-drivers
#1
Gila Albert, Tsippy Lotan, Penina Weiss, Yoram Shiftan
The challenge of ageing has two key aspects with regard to driving: mobility and safety. It is necessary for elderly adults to preserve independent mobility and activity; however, physical frailty and cognitive limitations have negative effects on their safety. Therefore, the issue of driving, and more specifically, the fostering of safe driving of old people, is crucial, especially due the increasing number of elderly people holding a driving license. The purpose of this Letter is to point out the complexity of elderly driving and to suggest countermeasures by acknowledging that obtaining the correct balance between safety and mobility of older drivers is a complicated and sensitive task...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515815/blood-leakage-detection-during-dialysis-therapy-based-on-fog-computing-with-array-photocell-sensors-and-heteroassociative-memory-model
#2
Jian-Xing Wu, Ping-Tzan Huang, Chia-Hung Lin, Chien-Ming Li
Blood leakage and blood loss are serious life-threatening complications occurring during dialysis therapy. These events have been of concerns to both healthcare givers and patients. More than 40% of adult blood volume can be lost in just a few minutes, resulting in morbidities and mortality. The authors intend to propose the design of a warning tool for the detection of blood leakage/blood loss during dialysis therapy based on fog computing with an array of photocell sensors and heteroassociative memory (HAM) model...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515814/mean-curvature-and-texture-constrained-composite-weighted-random-walk-algorithm-for-optic-disc-segmentation-towards-glaucoma-screening
#3
Rashmi Panda, N B Puhan, Ganapati Panda
Accurate optic disc (OD) segmentation is an important step in obtaining cup-to-disc ratio-based glaucoma screening using fundus imaging. It is a challenging task because of the subtle OD boundary, blood vessel occlusion and intensity inhomogeneity. In this Letter, the authors propose an improved version of the random walk algorithm for OD segmentation to tackle such challenges. The algorithm incorporates the mean curvature and Gabor texture energy features to define the new composite weight function to compute the edge weights...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515813/cloud-based-adaptive-exon-prediction-for-dna-analysis
#4
Srinivasareddy Putluri, Md Zia Ur Rahman, Shaik Yasmeen Fathima
Cloud computing offers significant research and economic benefits to healthcare organisations. Cloud services provide a safe place for storing and managing large amounts of such sensitive data. Under conventional flow of gene information, gene sequence laboratories send out raw and inferred information via Internet to several sequence libraries. DNA sequencing storage costs will be minimised by use of cloud service. In this study, the authors put forward a novel genomic informatics system using Amazon Cloud Services, where genomic sequence information is stored and accessed for processing...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515812/cascade-and-parallel-combination-cpc-of-adaptive-filters-for-estimating-heart-rate-during-intensive-physical-exercise-from-photoplethysmographic-signal
#5
Mohammad Tariqul Islam, Sk Tanvir Ahmed, Ishmam Zabir, Celia Shahnaz, Shaikh Anowarul Fattah
Photoplethysmographic (PPG) signal is getting popularity for monitoring heart rate in wearable devices because of simplicity of construction and low cost of the sensor. The task becomes very difficult due to the presence of various motion artefacts. In this study, an algorithm based on cascade and parallel combination (CPC) of adaptive filters is proposed in order to reduce the effect of motion artefacts. First, preliminary noise reduction is performed by averaging two channel PPG signals. Next in order to reduce the effect of motion artefacts, a cascaded filter structure consisting of three cascaded adaptive filter blocks is developed where three-channel accelerometer signals are used as references to motion artefacts...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515811/relevance-of-two-manual-tumour-volume-estimation-methods-for-diffuse-low-grade-gliomas
#6
Meriem Ben Abdallah, Marie Blonski, Sophie Wantz-Mézières, Yann Gaudeau, Luc Taillandier, Jean-Marie Moureaux
Management of diffuse low-grade glioma (DLGG) relies extensively on tumour volume estimation from MRI datasets. Two methods are currently clinically used to define this volume: the commonly used three-diameters solution and the more rarely used software-based volume reconstruction from the manual segmentations approach. The authors conducted an initial study of inter-practitioners' variability of software-based manual segmentations on DLGGs MRI datasets. A panel of 13 experts from various specialties and years of experience delineated 12 DLGGs' MRI scans...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515810/cardiorespiratory-system-monitoring-using-a-developed-acoustic-sensor
#7
Reza Abbasi-Kesbi, Atefeh Valipour, Khadije Imani
This Letter proposes a wireless acoustic sensor for monitoring heartbeat and respiration rate based on phonocardiogram (PCG). The developed sensor comprises a processor, a transceiver which operates at industrial, scientific and medical band and the frequency of 2.54 GHz as well as two capacitor microphones which one for recording the heartbeat and another one for respiration rate. To evaluate the precision of the presented sensor in estimating heartbeat and respiration rate, the sensor is tested on the different volunteers and the obtained results are compared with a gold standard as a reference...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29515809/eye-tracking-aided-digital-system-for-strabismus-diagnosis
#8
Zeng Hai Chen, Hong Fu, Wai Lun Lo, Zheru Chi, Bingang Xu
Strabismus is one of the most common vision disorders in preschool children. It can cause amblyopia and even permanent vision loss. In addition to a vision problem, strabismus brings to both children and adults serious negative impacts in their daily life, education, employment etc. Timely diagnosis of strabismus is thus crucial. However, traditional diagnosis methods conducted by ophthalmologists rely significantly on their experiences, making the diagnosis results subjective. It is also inconvenient for those methods being used for strabismus examination in large communities such as schools...
February 2018: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29383259/monitoring-of-atopic-dermatitis-using-leaky-coaxial-cable
#9
Binbin Dong, Aifeng Ren, Syed Aziz Shah, Fangming Hu, Nan Zhao, Xiaodong Yang, Daniyal Haider, Zhiya Zhang, Wei Zhao, Qammer Hussain Abbasi
In our daily life, inadvertent scratching may increase the severity of skin diseases (such as atopic dermatitis etc.). However, people rarely pay attention to this matter, so the known measurement behaviour of the movement is also very little. Nevertheless, the behaviour and frequency of scratching represent the degree of itching, and the analysis of scratching frequency is helpful to the doctor's clinical dosage. In this Letter, a novel system is proposed to monitor the scratching motion of a sleeping human body at night...
December 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29383258/anti-jamming-communication-for-body-area-network-using-chaotic-frequency-hopping
#10
Balamurugan Gopalakrishnan, Marcharla Anjaneyulu Bhagyaveni
The healthcare industries research trends focus on patient reliable communication and security is a paramount requirement of healthcare applications. Jamming in wireless communication medium has become a major research issue due to the ease of blocking communication in wireless networks and throughput degradation. The most commonly used technique to overcome jamming is frequency hopping (FH). However, in traditional FH pre-sharing of key for channel selection and a high-throughput overhead is required. So to overcome this pre-sharing of key and to increase the security chaotic frequency hopping (CFH) has been proposed...
December 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29383257/secured-remote-health-monitoring-system
#11
Duraisamy Sathya, Pugalendhi Ganesh Kumar
Wireless medical sensor network is used in healthcare applications that have the collections of biosensors connected to a human body or emergency care unit to monitor the patient's physiological vital status. The real-time medical data collected using wearable medical sensors are transmitted to a diagnostic centre. The data generated from the sensors are aggregated at this centre and transmitted further to the doctor's personal digital assistant for diagnosis. The unauthorised access of one's health data may lead to misuse and legal complications while unreliable data transmission or storage may lead to life threatening risk to patients...
December 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29383256/assessment-of-chronic-kidney-disease-using-skin-texture-as-a-key-parameter-for-south-indian-population
#12
Madhanlal Udhayarasu, Kalpana Ramakrishnan, Soundararajan Periasamy
Periodical monitoring of renal function, specifically for subjects with history of diabetic or hypertension would prevent them from entering into chronic kidney disease (CKD) condition. The recent increase in numbers may be due to food habits or lack of physical exercise, necessitates a rapid kidney function monitoring system. Presently, it is determined by evaluating glomerular filtration rate (GFR) that is mainly dependent on serum creatinine value and demographic parameters and ethnic value. Attempted here is to develop ethnic parameter based on skin texture for every individual...
December 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184668/can-surgical-simulation-be-used-to-train-detection-and-classification-of-neural-networks
#13
Odysseas Zisimopoulos, Evangello Flouty, Mark Stacey, Sam Muscroft, Petros Giataganas, Jean Nehme, Andre Chow, Danail Stoyanov
Computer-assisted interventions (CAI) aim to increase the effectiveness, precision and repeatability of procedures to improve surgical outcomes. The presence and motion of surgical tools is a key information input for CAI surgical phase recognition algorithms. Vision-based tool detection and recognition approaches are an attractive solution and can be designed to take advantage of the powerful deep learning paradigm that is rapidly advancing image recognition and classification. The challenge for such algorithms is the availability and quality of labelled data used for training...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184667/design-and-evaluation-of-an-augmented-reality-simulator-using-leap-motion
#14
Trinette Wright, Sandrine de Ribaupierre, Roy Eagleson
Advances in virtual and augmented reality (AR) are having an impact on the medical field in areas such as surgical simulation. Improvements to surgical simulation will provide students and residents with additional training and evaluation methods. This is particularly important for procedures such as the endoscopic third ventriculostomy (ETV), which residents perform regularly. Simulators such as NeuroTouch, have been designed to aid in training associated with this procedure. The authors have designed an affordable and easily accessible ETV simulator, and compare it with the existing NeuroTouch for its usability and training effectiveness...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184666/intra-operative-ultrasound-based-augmented-reality-guidance-for-laparoscopic-surgery
#15
Rohit Singla, Philip Edgcumbe, Philip Pratt, Christopher Nguan, Robert Rohling
In laparoscopic surgery, the surgeon must operate with a limited field of view and reduced depth perception. This makes spatial understanding of critical structures difficult, such as an endophytic tumour in a partial nephrectomy. Such tumours yield a high complication rate of 47%, and excising them increases the risk of cutting into the kidney's collecting system. To overcome these challenges, an augmented reality guidance system is proposed. Using intra-operative ultrasound, a single navigation aid, and surgical instrument tracking, four augmentations of guidance information are provided during tumour excision...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184665/distance-sonification-in-image-guided-neurosurgery
#16
Joseph Plazak, Simon Drouin, Louis Collins, Marta Kersten-Oertel
Image-guided neurosurgery, or neuronavigation, has been used to visualise the location of a surgical probe by mapping the probe location to pre-operative models of a patient's anatomy. One common limitation of this approach is that it requires the surgeon to divert their attention away from the patient and towards the neuronavigation system. In order to improve this type of application, the authors designed a system that sonifies (i.e. provides audible feedback of) distance information between a surgical probe and the location of the anatomy of interest...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184664/estimation-of-surgical-tool-tip-tracking-error-distribution-in-coordinate-reference-frame-involving-pivot-calibration-uncertainty
#17
Zhe Min, Hongliang Ren, Max Q-H Meng
Accurate understanding of surgical tool-tip tracking error is important for decision making in image-guided surgery. In this Letter, the authors present a novel method to estimate/model surgical tool-tip tracking error in which they take pivot calibration uncertainty into consideration. First, a new type of error that is referred to as total target registration error (TTRE) is formally defined in a single-rigid registration. Target localisation error (TLE) in two spaces to be registered is considered in proposed TTRE formulation...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184663/quantifying-attention-shifts-in-augmented-reality-image-guided-neurosurgery
#18
Étienne Léger, Simon Drouin, D Louis Collins, Tiberiu Popa, Marta Kersten-Oertel
Image-guided surgery (IGS) has allowed for more minimally invasive procedures, leading to better patient outcomes, reduced risk of infection, less pain, shorter hospital stays and faster recoveries. One drawback that has emerged with IGS is that the surgeon must shift their attention from the patient to the monitor for guidance. Yet both cognitive and motor tasks are negatively affected with attention shifts. Augmented reality (AR), which merges the realworld surgical scene with preoperative virtual patient images and plans, has been proposed as a solution to this drawback...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184662/towards-x-ray-free-endovascular-interventions-using-hololens-for-on-line-holographic-visualisation
#19
Ivo Kuhlemann, Markus Kleemann, Philipp Jauer, Achim Schweikard, Floris Ernst
A major challenge during endovascular interventions is visualising the position and orientation of the catheter being inserted. This is typically achieved by intermittent X-ray imaging. Since the radiation exposure to the surgeon is considerable, it is desirable to reduce X-ray exposure to the bare minimum needed. Additionally, transferring two-dimensional (2D) X-ray images to 3D locations is challenging. The authors present the development of a real-time navigation framework, which allows a 3D holographic view of the vascular system without any need of radiation...
October 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/29184661/application-of-an-rgbd-augmented-c-arm-for-minimally-invasive-scoliosis-surgery-assistance
#20
Séverine Habert, Ulrich Eck, Pascal Fallavollita, Stefan Parent, Nassir Navab, Farida Cheriet
Minimally invasive surgeries (MISs) are gaining popularity as alternatives to conventional open surgeries. In thoracoscopic scoliosis MIS, fluoroscopy is used to guide pedicle screw placement and to visualise the effect of the intervention on the spine curvature. However, cosmetic external appearance is the most important concern for patients, while correction of the spine and achieving coronal and sagittal trunk balance are the top priorities for surgeons. The authors present the feasibility study of the first intra-operative assistive system for scoliosis surgery composed of a single RGBD camera affixed on a C-arm which allows visualising in real time the surgery effects on the patient trunk surface in the transverse plane...
October 2017: Healthcare Technology Letters
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