keyword
MENU ▼
Read by QxMD icon Read
search

Augmented reality

keyword
https://www.readbyqxmd.com/read/29791695/current-strategies-to-prevent-iatrogenic-ureteral-injury-during-colorectal-surgery
#1
Jonathan Douissard, Frederic Ris, Philippe Morel, Nicolas Christian Buchs
Iatrogenic ureteral injuries are a source of major concern among surgeons performing colorectal procedures. Although they are uncommon, these lesions lead to severe morbidity and long-term functional disabilities, as well as an increase in mortality, hospital stay, and cost. The laparoscopic approach has gained popularity in the field of colorectal surgery and is associated with improved global postoperative outcomes. However, it is also considered to increase the risk of ureteral injury when compared to open surgery, especially during left colonic and rectal resections...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791343/research-on-a-surface-relief-optical-waveguide-augmented-reality-display-device
#2
Wenjun Zhang, Zhifeng Wang, Jian Xu
Recently, an optical waveguide display device that has light weight, high transparency, and full color has become more and more popular in the wearable augmented reality display application. But existing waveguide display devices are less than satisfactory because of cost, safety, and mass production. Therefore, a type of surface-relief optical waveguide display device is proposed in this paper. First, the geometrical relationship of a waveguide display device structure is confirmed according to the design method of the optical waveguide display device...
May 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29788686/augmented-reality-and-dynamic-infrared-thermography-for-perforator-mapping-in-the-anterolateral-thigh
#3
Ignacio Javier Cifuentes, Bruno Leonardo Dagnino, María Carolina Salisbury, María Eliana Perez, Claudia Ortega, Daniela Maldonado
Dynamic infrared thermography (DIRT) has been used for the preoperative mapping of cutaneous perforators. This technique has shown a positive correlation with intraoperative findings. Our aim was to evaluate the accuracy of perforator mapping with DIRT and augmented reality using a portable projector. For this purpose, three volunteers had both of their anterolateral thighs assessed for the presence and location of cutaneous perforators using DIRT. The obtained image of these "hotspots" was projected back onto the thigh and the presence of Doppler signals within a 10-cm diameter from the midpoint between the lateral patella and the anterior superior iliac spine was assessed using a handheld Doppler device...
May 2018: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29785148/the-use-of-augmented-reality-glasses-in-central-line-simulation-see-one-simulate-many-do-one-competently-and-teach-everyone
#4
Cynthia Y Huang, Jonathan B Thomas, Abdullah Alismail, Avi Cohen, Waleed Almutairi, Noha S Daher, Michael H Terry, Laren D Tan
Objective: The aim of this study was to investigate the feasibility of using augmented reality (AR) glasses in central line simulation by novice operators and compare its efficacy to standard central line simulation/teaching. Design: This was a prospective randomized controlled study enrolling 32 novice operators. Subjects were randomized on a 1:1 basis to either simulation using the augmented virtual reality glasses or simulation using conventional instruction...
2018: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/29772045/ocular-tolerance-of-contemporary-electronic-display-devices
#5
Andrew J Clark, Paul Yang, Khizer R Khaderi, Andrew A Moshfeghi
Electronic displays have become an integral part of life in the developed world since the revolution of mobile computing a decade ago. With the release of multiple consumer-grade virtual reality (VR) and augmented reality (AR) products in the past 2 years utilizing head-mounted displays (HMDs), as well as the development of low-cost, smartphone-based HMDs, the ability to intimately interact with electronic screens is greater than ever. VR/AR HMDs also place the display at much closer ocular proximity than traditional electronic devices while also isolating the user from the ambient environment to create a "closed" system between the user's eyes and the display...
May 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29771624/virtual-reality-training-to-enhance-behavior-and-cognitive-function-among-children-with-attention-deficit-hyperactivity-disorder-brief-report
#6
Shirley Shema-Shiratzky, Marina Brozgol, Pablo Cornejo-Thumm, Karen Geva-Dayan, Michael Rotstein, Yael Leitner, Jeffrey M Hausdorff, Anat Mirelman
PURPOSE: To examine the feasibility and efficacy of a combined motor-cognitive training using virtual reality to enhance behavior, cognitive function and dual-tasking in children with Attention-Deficit/Hyperactivity Disorder (ADHD). METHODS: Fourteen non-medicated school-aged children with ADHD, received 18 training sessions during 6 weeks. Training included walking on a treadmill while negotiating virtual obstacles. Behavioral symptoms, cognition and gait were tested before and after the training and at 6-weeks follow-up...
May 17, 2018: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/29770927/a-review-of-existing-and-potential-computer-user-interfaces-for-modern-radiology
#7
REVIEW
Antoine Iannessi, Pierre-Yves Marcy, Olivier Clatz, Anne-Sophie Bertrand, Maki Sugimoto
The digitalization of modern imaging has led radiologists to become very familiar with computers and their user interfaces (UI). New options for display and command offer expanded possibilities, but the mouse and keyboard remain the most commonly utilized, for usability reasons. In this work, we review and discuss different UI and their possible application in radiology. We consider two-dimensional and three-dimensional imaging displays in the context of interventional radiology, and discuss interest in touchscreens, kinetic sensors, eye detection, and augmented or virtual reality...
May 16, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29765445/augmented-reality-in-neurosurgery
#8
Raniel Tagaytayan, Arpad Kelemen, Cecilia Sik-Lanyi
Neurosurgery is a medical specialty that relies heavily on imaging. The use of computed tomography and magnetic resonance images during preoperative planning and intraoperative surgical navigation is vital to the success of the surgery and positive patient outcome. Augmented reality application in neurosurgery has the potential to revolutionize and change the way neurosurgeons plan and perform surgical procedures in the future. Augmented reality technology is currently commercially available for neurosurgery for simulation and training...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29763358/bone-marrow-stimulation-technique-augmented-by-an-ultrapurified-alginate-gel-enhances-cartilage-repair-in-a-canine-model
#9
Rikiya Baba, Tomohiro Onodera, Masatake Matsuoka, Kazutoshi Hontani, Zenta Joutoku, Shinji Matsubara, Kentaro Homan, Norimasa Iwasaki
BACKGROUND: The optimal treatment for a medium- or large-sized cartilage lesion is still controversial. Since an ultrapurified alginate (UPAL) gel enhances cartilage repair in animal models, this material is expected to improve the efficacy of the current treatment strategies for cartilage lesions. HYPOTHESIS: The bone marrow stimulation technique (BMST) augmented by UPAL gel can induce hyaline-like cartilage repair. STUDY DESIGN: Controlled laboratory study...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29762155/corr-insights%C3%A2-can-augmented-reality-be-helpful-in-pelvic-bone-cancer-surgery-an-in-vitro-study
#10
Craig Gerrand
No abstract text is available yet for this article.
May 14, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29755378/the-architectonic-experience-of-body-and-space-in-augmented-interiors
#11
Isabella Pasqualini, Maria Laura Blefari, Tej Tadi, Andrea Serino, Olaf Blanke
The environment shapes our experience of space in constant interaction with the body. Architectonic interiors amplify the perception of space through the bodily senses; an effect also known as embodiment. The interaction of the bodily senses with the space surrounding the body can be tested experimentally through the manipulation of multisensory stimulation and measured via a range of behaviors related to bodily self-consciousness. Many studies have used Virtual Reality to show that visuotactile conflicts mediated via a virtual body or avatar can disrupt the unified subjective experience of the body and self...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29754119/a-pilot-study-and-brief-overview-of-rehabilitation-via-virtual-environment-in-patients-suffering-from-dementia
#12
Th Fasilis, P Patrikelis, A Siatouni, A Alexoudi, A Veretzioti, L Zachou, S-St Gatzonis
Dementia is one of the increasing problems of modern societies. The immediate cure is not a possible solution, at least at the moment, but science has found a number of new ways to retard and under specific conditions to halt its development. A potential, and constantly evolving scientific field is the use of Computerized Cognitive Rehabilitation (CCR) and Virtual Environments (Vr.E). According to the existing literature, subjecting patients to various neuro-rehabilitative conditions within 3D virtual environments, allows them to obtain significant therapeutic benefits in which both transferability and durations over time are observed, in relation to the training period of the intervention...
January 2018: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/29749069/novel-navigation-system-by-augmented-reality-technology-using-a-tablet-pc-for-hepatobiliary-and-pancreatic-surgery
#13
Jungo Yasuda, Tomoyoshi Okamoto, Shinji Onda, Yasuro Futagawa, Katsuhiko Yanaga, Naoki Suzuki, Asaki Hattori
BACKGROUND: We previously developed an image-guided navigation system (IG-NS) using augmented reality technology for hepatobiliary and pancreatic (HBP) surgery. This system superimposed a 3D model onto a stereoscope-captured surgical field (i.e., the scope method). Unfortunately, this method requires an expensive stereoscope, surgeons have to shift their eyesight away from the surgical field, and the method has poor controllability. Therefore, an IG-NS using a tablet PC (i.e., the tablet method) was developed...
May 11, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29747235/pure-laparoscopic-hepatectomy-with-augmented-reality-assisted-indocyanine-green-fluorescence-versus-open-hepatectomy-for-hepatocellular-carcinoma-with-liver-cirrhosis-a-propensity-analysis-at-a-single-center
#14
Tan To Cheung, Ka Wing Ma, Wong Hoi She, Wing Chiu Dai, Simon Hing Yin Tsang, Albert Chi Yan Chan, Kenneth Siu Ho Chok, Chung Mau Lo
INTRODUCTION: Laparoscopic hepatectomy is considered an acceptable treatment of choice in selected patients with primary hepatocellular carcinoma (HCC). Whether indocyanine green (ICG) immunofluorescence, a new technology, may improve surgery outcomes has yet to be tested. The aim of the present study was to investigate and compare the effect of ICG fluorescence imaging on the outcomes of pure laparoscopic hepatectomy and open hepatectomy for primary HCC with background cirrhosis. METHODS: From January 2015 to June 2016, 20 patients with HCC and liver cirrhosis underwent laparoscopic hepatectomy with ICG immunofluorescence...
May 10, 2018: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/29742535/augmented-reality-guided-lumbar-facet-joint-injections
#15
Christoph A Agten, Cyrill Dennler, Andrea B Rosskopf, Laurenz Jaberg, Christian W A Pfirrmann, Mazda Farshad
OBJECTIVES: The aim of this study was to assess feasibility and accuracy of augmented reality-guided lumbar facet joint injections. MATERIALS AND METHODS: A spine phantom completely embedded in hardened opaque agar with 3 ring markers was built. A 3-dimensional model of the phantom was uploaded to an augmented reality headset (Microsoft HoloLens). Two radiologists independently performed 20 augmented reality-guided and 20 computed tomography (CT)-guided facet joint injections each: for each augmented reality-guided injection, the hologram was manually aligned with the phantom container using the ring markers...
May 8, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29740091/bragg-polarization-gratings-for-wide-angular-bandwidth-and-high-efficiency-at-steep-deflection-angles
#16
Xiao Xiang, Jihwan Kim, Michael J Escuti
Optical films and surfaces using geometric phase are increasingly demonstrating unique and sometimes enhanced performance compared to traditional elements employing propagation phase. Here, we report on a diffraction grating with wider angular bandwidth and significantly higher average first-order efficiency than the nearest prior art of metasurfaces, volume holographic gratings, and surface-relief gratings configured to achieve a steep deflection angle. More specifically, we demonstrate a liquid crystal (LC) polymer Bragg polarization grating (PG) with large angular bandwidth and high efficiency in transmission-mode for 532 nm wavelength and 400 nm period...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29729839/does-intraoperative-navigation-improve-the-accuracy-of-mandibular-angle-osteotomy-comparison-between-augmented-reality-navigation-individualised-templates-and-free-hand-techniques
#17
Ming Zhu, Fei Liu, Chaozheng Zhou, Li Lin, Yan Zhang, Gang Chai, Le Xie, Fazhi Qi, Qingfeng Li
BACKGROUND: Augmented reality (AR)-based navigation surgery has evolved to be an advanced assisted technology. The aim of this study is to manifest the accuracy of AR navigation for the intraoperative mandibular angle osteotomy by comparing the navigation with other interventional techniques. METHODS: A retrospective study was conducted with 93 post-surgical patients with mandibular angle hypertrophy admitted at our plastic and reconstructive surgery department between September 2011 and June 2016...
April 11, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29727330/perfect-registration-leads-to-imperfect-performance-a-randomized-trial-of-multimodal-intraoperative-image-guidance
#18
James W R Dilley, Archie Hughes-Hallett, Philip J Pratt, Philip H Pucher, Mafalda Camara, Ara W Darzi, Erik K Mayer
OBJECTIVE: To compare surgical safety and efficiency of 2 image guidance modalities, perfect augmented reality (AR) and side-by-side unregistered image guidance (IG), against a no guidance control (NG), when performing a simulated laparoscopic cholecystectomy (LC). BACKGROUND: Image guidance using AR offers the potential to improve understanding of subsurface anatomy, with positive ramifications for surgical safety and efficiency. No intra-abdominal study has demonstrated any advantage for the technology...
May 1, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29716028/digitally-switchable-multi-focal-lens-using-freeform-optics
#19
Xuan Wang, Yi Qin, Hong Hua, Yun-Han Lee, Shin-Tson Wu
Optical technologies offering electrically tunable optical power have found a broad range of applications, from head-mounted displays for virtual and augmented reality applications to microscopy. In this paper, we present a novel design and prototype of a digitally switchable multi-focal lens (MFL) that offers the capability of rapidly switching the optical power of the system among multiple foci. It consists of a freeform singlet and a customized programmable optical shutter array (POSA). Time-multiplexed multiple foci can be obtained by electrically controlling the POSA to switch the light path through different segments of the freeform singlet rapidly...
April 16, 2018: Optics Express
https://www.readbyqxmd.com/read/29715954/holographic-near-eye-display-system-based-on-double-convergence-light-gerchberg-saxton-algorithm
#20
Peng Sun, Shengqian Chang, Siqi Liu, Xiao Tao, Chang Wang, Zhenrong Zheng
In this paper, a method is proposed to implement noises reduced three-dimensional (3D) holographic near-eye display by phase-only computer-generated hologram (CGH). The CGH is calculated from a double-convergence light Gerchberg-Saxton (GS) algorithm, in which the phases of two virtual convergence lights are introduced into GS algorithm simultaneously. The first phase of convergence light is a replacement of random phase as the iterative initial value and the second phase of convergence light will modulate the phase distribution calculated by GS algorithm...
April 16, 2018: Optics Express
keyword
keyword
11525
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"