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Mixed reality

P Stefan, M Pfandler, P Wucherer, S Habert, J Fürmetz, S Weidert, E Euler, U Eck, M Lazarovici, M Weigl, N Navab
Surgical simulators are being increasingly used as an attractive alternative to clinical training in addition to conventional animal models and human specimens. Typically, surgical simulation technology is designed for the purpose of teaching technical surgical skills (so-called task trainers). Simulator training in surgery is therefore in general limited to the individual training of the surgeon and disregards the participation of the rest of the surgical team. The objective of the project Assessment and Training of Medical Experts based on Objective Standards (ATMEOS) is to develop an immersive simulated operating room environment that enables the training and assessment of multidisciplinary surgical teams under various conditions...
March 15, 2018: Der Unfallchirurg
Robert Xiao, Julia Schwarz, Nick Throm, Andrew D Wilson, Hrvoje Benko
We present MRTouch, a novel multitouch input solution for head-mounted mixed reality systems. Our system enables users to reach out and directly manipulate virtual interfaces affixed to surfaces in their environment, as though they were touchscreens. Touch input offers precise, tactile and comfortable user input, and naturally complements existing popular modalities, such as voice and hand gesture. Our research prototype combines both depth and infrared camera streams together with real-time detection and tracking of surface planes to enable robust finger-tracking even when both the hand and head are in motion...
April 2018: IEEE Transactions on Visualization and Computer Graphics
Martin Selecký, Jan Faigl, Milan Rollo
Verification of the correct functionality of multi-vehicle systems in high-fidelity scenarios is required before any deployment of such a complex system, e.g., in missions of remote sensing or in mobile sensor networks. Mixed-reality simulations where both virtual and physical entities can coexist and interact have been shown to be beneficial for development, testing, and verification of such systems. This paper deals with the problems of designing a certain communication subsystem for such highly desirable realistic simulations...
March 14, 2018: Sensors
Marika Demers, Daniel Chan Chun Kong, Mindy F Levin
PURPOSE: To determine user satisfaction and safety of incorporating a low-cost virtual rehabilitation intervention as an adjunctive therapeutic option for cognitive-motor upper limb rehabilitation in individuals with sub-acute stroke. METHODS: A low-cost upper limb virtual rehabilitation application incorporating realistic functionally-relevant unimanual and bimanual tasks, specifically designed for cognitive-motor rehabilitation was developed for patients with sub-acute stroke...
March 11, 2018: Disability and Rehabilitation. Assistive Technology
Susan Andrea Bartels, Saja Michael, Sophie Roupetz, Stephanie Garbern, Lama Kilzar, Harveen Bergquist, Nour Bakhache, Colleen Davison, Annie Bunting
Introduction: The Syrian conflict has resulted in over 2.3 million child refugees in the Middle East and the prevalence of early marriage has reportedly increased among displaced Syrian families. This study explores the underlying factors contributing to child marriage among Syrian refugees in Lebanon with the goal of informing community-based strategies to address the issue. Methods: In July-August 2016, trained interviewers collected self-interpreted stories in Lebanon using Cognitive Edge's SenseMaker, a mixed-method data collection tool...
2018: BMJ Global Health
Belgacem Agoubi
Assessing groundwater flow path in a thermal aquifer, such as El Hamma aquifer, southeastern Tunisia, and its lateral communication with the adjacent Jeffara-Gabes aquifers, is a very complex operation which requires the integration of several approaches to understand and explain the reality of phenomenon. In this study, geochemical and isotopic data, Kohonen self-organizing map, temperature cooling trend, and kriging techniques were used to assess groundwater flow path in hydrothermal aquifer of El Hamma-Gabes, Tunisia...
March 1, 2018: Environmental Science and Pollution Research International
Marika Plöthner, Katharina Schmidt, Clarissa Schips, Kathrin Damm
Objective: The aim of this study was to identify the preferences for whole genome sequencing (WGS) tests without genetic counseling. Methods: A discrete choice experiment was conducted where participants chose between two hypothetical alternatives consisting of the following attributes: test accuracy, test costs, identified diseases, probability of disease occurrence, and data access. People from the general German population aged ≥18 years were eligible to participate in the survey...
2018: Pharmacogenomics and Personalized Medicine
Emily K Simpson, Narissa M Ramirez, Brittany Branstetter, Aileen Reed, Evan Lines
Following a stroke, depression and anxiety may negatively affect recovery and decrease quality of life. Occupational therapy (OT) practitioners are distinctly qualified to address both the physical and psychosocial sequelae of a stroke, including clients' mental and emotional health. This study explored the ways in which OT practitioners address the mental health needs of clients post stroke. A sequential explanatory mixed-methods design was used to collect both survey and focus group data. In all, 754 OT practitioners across the United States completed an online survey, and 10 practitioners participated in focus groups...
March 1, 2018: OTJR: Occupation, Participation and Health
Mariet J Eksteen, Gerda M Reitsma, Sonet B Swart, Erika Fourie
Objective. To determine fourth-year pharmacy students' learning experiences with team-based learning (TBL) at a South African university. Methods. A survey composed of biographical data and quantitative questions focusing on student learning experiences was sent to students. There were 183 (91.5%) students who completed the survey. Results. Students had a positive experience with TBL and found it valuable and more worthwhile than traditional lecture methods, regardless of their initial negative perception of TBL...
February 2018: American Journal of Pharmaceutical Education
Olivier Percie du Sert, Stéphane Potvin, Olivier Lipp, Laura Dellazizzo, Mélanie Laurelli, Richard Breton, Pierre Lalonde, Kingsada Phraxayavong, Kieron O'Connor, Jean-François Pelletier, Tarik Boukhalfi, Patrice Renaud, Alexandre Dumais
Schizophrenia is a chronic and severe mental illness that poses significant challenges. While many pharmacological and psychosocial interventions are available, many treatment-resistant schizophrenia patients continue to suffer from persistent psychotic symptoms, notably auditory verbal hallucinations (AVH), which are highly disabling. This unmet clinical need requires new innovative treatment options. Recently, a psychological therapy using computerized technology has shown large therapeutic effects on AVH severity by enabling patients to engage in a dialogue with a computerized representation of their voices...
February 24, 2018: Schizophrenia Research
C H R Wiese, V M C Silbereisen, B M Graf, A C Bundscherer, C L Lassen
BACKGROUND: The right to adequate outpatient palliative care has existed for several years in Germany. In recent years outpatient palliative care has developed very positively. Nevertheless, in emergency situations paramedics and emergency physicians were often included in the care of palliative care of patients. The aim of our study was to investigate the cooperation between outpatient palliative care teams and the emergency medical services. Another aim was to identify structural realities and based on these to discuss the possibilities in the optimization of outpatient palliative medical emergency situations...
February 26, 2018: Der Anaesthesist
Ulrich Eck, Alexander Winkler
BACKGROUND: One of the main challenges for modern surgery is the effective use of the many available imaging modalities and diagnostic methods. Augmented reality systems can be used in the future to blend patient and planning information into the view of surgeons, which can improve the efficiency and safety of interventions. OBJECTIVE: In this article we present five visualization methods to integrate augmented reality displays into medical procedures and the advantages and disadvantages are explained...
February 20, 2018: Der Unfallchirurg
Cuan M Harrington, Vishwa Chaitanya, Patrick Dicker, Oscar Traynor, Dara O Kavanagh
BACKGROUND: Video gaming demands elements of visual attention, hand-eye coordination and depth perception which may be contiguous with laparoscopic skill development. General video gaming has demonstrated altered cortical plasticity and improved baseline/acquisition of minimally invasive skills. The present study aimed to evaluate for skill acquisition associated with a commercially available dedicated laparoscopic video game (Underground) and its unique (laparoscopic-like) controller for the Nintendo®Wii U™ console...
February 14, 2018: Surgical Endoscopy
Hao Jiang, Bozena Kaminska
To enable customized manufacturing of structural colors for commercial applications, up-scalable, low-cost, rapid, and versatile printing techniques are highly demanded. In this paper, we introduce a viable strategy for scaling up production of custom-input images by patterning individual structural colors on separate layers which are then vertically stacked and recombined into full-color images. By applying this strategy on molded-ink-on-nanostructured-surface printing, we present an industry-applicable inkjet structural color printing technique termed as multilayer molded-ink-on-nanostructured-surface (M-MIONS) printing, in which structural color pixels are molded on multiple layers of nanostructured surfaces...
February 14, 2018: ACS Nano
A N Murphy, N P Sheehy, P V Kavanagh
AIM: To describe and quantify the range of non-interpretive tasks engaged in by consultant radiologists in Ireland today. MATERIALS AND METHODS: A multiple-choice electronic survey was circulated to over 200 Irish consultant radiologists and results were analysed. RESULTS: Responses were received from approximately 40% of the 267 full-time equivalent consultants in Ireland at the time of the survey. There was a wide sub-specialty mix, and responses from both clinical directors and those without designated administrative responsibility...
February 1, 2018: Clinical Radiology
Dhwani Mehta, Mohammad Faridul Haque Siddiqui, Ahmad Y Javaid
Extensive possibilities of applications have made emotion recognition ineluctable and challenging in the field of computer science. The use of non-verbal cues such as gestures, body movement, and facial expressions convey the feeling and the feedback to the user. This discipline of Human-Computer Interaction places reliance on the algorithmic robustness and the sensitivity of the sensor to ameliorate the recognition. Sensors play a significant role in accurate detection by providing a very high-quality input, hence increasing the efficiency and the reliability of the system...
February 1, 2018: Sensors
Matthew G Hanna, Ishtiaque Ahmed, Jeffrey Nine, Shyam Prajapati, Liron Pantanowitz
CONTEXT: - Augmented reality (AR) devices such as the Microsoft HoloLens have not been well used in the medical field. OBJECTIVE: - To test the HoloLens for clinical and nonclinical applications in pathology. DESIGN: - A Microsoft HoloLens was tested for virtual annotation during autopsy, viewing 3D gross and microscopic pathology specimens, navigating whole slide images, telepathology, as well as real-time pathology-radiology correlation...
January 31, 2018: Archives of Pathology & Laboratory Medicine
Leo Kobayashi, Xiao Chi Zhang, Scott A Collins, Naz Karim, Derek L Merck
Introduction: Augmented reality (AR), mixed reality (MR), and virtual reality devices are enabling technologies that may facilitate effective communication in healthcare between those with information and knowledge (clinician/specialist; expert; educator) and those seeking understanding and insight (patient/family; non-expert; learner). Investigators initiated an exploratory program to enable the study of AR/MR use-cases in acute care clinical and instructional settings. Methods: Academic clinician educators, computer scientists, and diagnostic imaging specialists conducted a proof-of-concept project to 1) implement a core holoimaging pipeline infrastructure and open-access repository at the study institution, and 2) use novel AR/MR techniques on off-the-shelf devices with holoimages generated by the infrastructure to demonstrate their potential role in the instructive communication of complex medical information...
January 2018: Western Journal of Emergency Medicine
Philip Kiær Ahring, Vivian Wan Yu Liao, Thomas Balle
Nicotinic acetylcholine receptors (nAChRs) belong to the Cys-loop receptor family and are vital for normal mammalian brain function. Cys-loop receptors are pentameric ligand-gated ion channels formed from five identical or homologous subunits oriented around a central ion-conducting pore, which result in homomeric or heteromeric receptors, respectively. Within a given Cys-loop receptor family, many different heteromeric receptors can assemble from a common set of subunits, and understanding the properties of these heteromeric receptors is crucial for the continuing quest to generate novel treatments for human diseases...
January 30, 2018: Journal of General Physiology
Matthew Quaife, Fern Terris-Prestholt, Gian Luca Di Tanna, Peter Vickerman
Discrete choice experiments (DCEs) are economic tools that elicit the stated preferences of respondents. Because of their increasing importance in informing the design of health products and services, it is critical to understand the extent to which DCEs give reliable predictions outside of the experimental context. We systematically reviewed the literature of published DCE studies comparing predictions to choices made in reality; we extracted individual-level data to estimate a bivariate mixed-effects model of pooled sensitivity and specificity...
January 29, 2018: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
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