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https://www.readbyqxmd.com/read/29241171/virtual-reality-surgical-simulation-implications-for-resection-of-intracranial-gliomas
#1
Ayoub Dakson, Murray Hong, David B Clarke
Surgical simulation has the potential to play important roles in surgical training and preoperative planning. The advent of virtual reality (VR) with tactile haptic feedback has revolutionized surgical simulation, creating a novel environment for residents to learn manual skills without compromising patient safety. This concept is particularly relevant in neurosurgical training where the acquired skill set demands performance of technically challenging tasks under pressure and where the consequences of error are significant...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29237632/virtual-reality-for-pain-and-anxiety-management-in-children
#2
Karen Arane, Amir Behboudi, Ran D Goldman
Question Pain and anxiety are common in children who need procedures such as administering vaccines or drawing blood. Recent reports have described the use of virtual reality (VR) as a method of distraction during such procedures. How does VR work in reducing pain and anxiety in pediatric patients and what are the potential uses for it? Answer Recent studies explored using VR with pediatric patients undergoing procedures ranging from vaccinations and intravenous injections to laceration repair and dressing changes for burn wounds...
December 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/29234356/the-opportunities-of-virtual-reality-in-the-rehabilitation-of-children-with-attention-deficit-hyperactivity-disorder-a-literature-review
#3
REVIEW
Azadeh Bashiri, Marjan Ghazisaeedi, Leila Shahmoradi
Attention deficit hyperactivity disorder (ADHD) is one of the most common psychiatric disorders in childhood. This disorder, in addition to its main symptoms, creates significant difficulties in education, social performance, and personal relationships. Given the importance of rehabilitation for these patients to combat the above issues, the use of virtual reality (VR) technology is helpful. The aim of this study was to highlight the opportunities for VR in the rehabilitation of children with ADHD. This narrative review was conducted by searching for articles in scientific databases and e-Journals, using keywords including VR, children, and ADHD...
November 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29234302/home-based-virtual-reality-augmented-training-improves-lower-limb-muscle-strength-balance-and-functional-mobility-following-chronic-incomplete-spinal-cord-injury
#4
Michael Villiger, Jasmin Liviero, Lea Awai, Rahel Stoop, Pawel Pyk, Ron Clijsen, Armin Curt, Kynan Eng, Marc Bolliger
Key factors positively influencing rehabilitation and functional recovery after spinal cord injury (SCI) include training variety, intensive movement repetition, and motivating training tasks. Systems supporting these aspects may provide profound gains in rehabilitation, independent of the subject's treatment location. In the present study, we test the hypotheses that virtual reality (VR)-augmented training at home (i.e., unsupervised) is feasible with subjects with an incomplete SCI (iSCI) and that it improves motor functions such as lower limb muscle strength, balance, and functional mobility...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29233801/getting-to-the-root-of-fine-motor-skill-performance-in-dentistry-brain-activity-during-dental-tasks-in-a-virtual-reality-haptic-simulation
#5
Suzanne Perry, Susan M Bridges, Frank Zhu, W Keung Leung, Michael F Burrow, Jamie Poolton, Rich Sw Masters
BACKGROUND: There is little evidence considering the relationship between movement-specific reinvestment (a dimension of personality which refers to the propensity for individuals to consciously monitor and control their movements) and working memory during motor skill performance. Functional near-infrared spectroscopy (fNIRS) measuring oxyhemoglobin demands in the frontal cortex during performance of virtual reality (VR) psychomotor tasks can be used to examine this research gap. OBJECTIVE: The aim of this study was to determine the potential relationship between the propensity to reinvest and blood flow to the dorsolateral prefrontal cortices of the brain...
December 12, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29230275/the-efficacy-of-a-haptic-enhanced-virtual-reality-system-for-precision-grasp-acquisition-in-stroke-rehabilitation
#6
Shih-Ching Yeh, Si-Huei Lee, Rai-Chi Chan, Yi Wu, Li-Rong Zheng, Sheryl Flynn
Stroke is a leading cause of long-term disability, and virtual reality- (VR-) based stroke rehabilitation is effective in increasing motivation and the functional performance. Although much of the functional reach and grasp capabilities of the upper extremities were regained, the pinch movement remains impaired following stroke. In this study, we developed a haptic-enhanced VR system to simulate haptic pinch tasks to assist the recovery of upper-extremity fine motor function. We recruited 16 adults with stroke to verify the efficacy of this new VR system...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29230046/bullying-incidences-identification-within-an-immersive-environment-using-hd-eeg-based-analysis-a-swarm-decomposition-and-deep-learning-approach
#7
Vasileios Baltatzis, Kyriaki-Margarita Bintsi, Georgios K Apostolidis, Leontios J Hadjileontiadis
Bullying is an everlasting phenomenon and the first, yet difficult, step towards the solution is its detection. Conventional approaches for bullying incidence identification include questionnaires, conversations and psychological tests. Here, unlike the conventional approaches, two experiments are proposed that involve visual stimuli with cases of bullying- and non-bullying- related ones, set within a 2D (simple video preview) and a Virtual Reality (VR) (immersive video preview) context. In both experimental settings, brain activity is recorded using high density (HD) (256 channels) electroencephalogram (EEG), and analyzed to identify the bullying stimuli type (bullying/non-bullying) and context (2D/VR)...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222631/an-advanced-simulator-for-orthopedic-surgical-training
#8
J Cecil, Avinash Gupta, Miguel Pirela-Cruz
PURPOSE: The purpose of creating the virtual reality (VR) simulator is to facilitate and supplement the training opportunities provided to orthopedic residents. The use of VR simulators has increased rapidly in the field of medical surgery for training purposes. This paper discusses the creation of the virtual surgical environment (VSE) for training residents in an orthopedic surgical process called less invasive stabilization system (LISS) surgery which is used to address fractures of the femur...
December 8, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29217342/cinematic-rendering-of-cardiac-ct-volumetric-data-principles-and-initial-observations
#9
Steven P Rowe, Pamela T Johnson, Elliot K Fishman
BACKGROUND: Cinematic rendering (CR) a new method of 3D computed tomography (CT) volumetric visualization that produces photorealistic images. As with traditional 3D visualization methods, CR may prove to be of value in providing important information when evaluating regions of complex anatomy such as the heart. METHODS: The gated, IV contrast-enhanced chest CT angiogram data from three recent patients were evaluated with CR. Image comparision demonstrates the difference between CR and traditional volume rendering (VR), owing to a more complex lighting model that enhances surface detail and produces realistic shadows to add depth to 3D visualizations...
December 2, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29216703/-effect-of-sports-training-in-angular-compartment-of-the-lower-limbs-in-children-footballers-aged-11-to-12-years-old
#10
J Burboa, M Bahamonde, M Inostroza, P Lillo, M Barahona, M Palet, J Hinzpeter
Anterior Cruciate Ligament (ACL) injury is an important cause of days lost in athletes. Most ACL injuries are non-contact and are associated with biomechanical risk factors that increase tension in the ACL: increased knee valgus (KV) and hip flexion (HF) and decreased flexion of knee (KF). Muscle around the knee contributes to knee stability, so fatigue produced by exercise could alter knee balance, increasing LCA tension. The aim of the study is to determine the angular behavior before and after a physical load for CF, RR and RV in children born in 2002-2003...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29216384/evaluating-smartphone-based-virtual-reality-to-improve-chinese-schoolchildren-s-pedestrian-safety-a-nonrandomized-trial
#11
David C Schwebel, Yue Wu, Peng Li, Joan Severson, Yefei He, Henry Xiang, Guoqing Hu
Objective: This nonrandomized trial evaluated whether classroom-based training in a smartphone-based virtual reality (VR) pedestrian environment (a) teaches schoolchildren to cross streets safely, and (b) increases their self-efficacy for street-crossing. Methods: Fifty-six children, aged 8-10 years, attending primary school in Changsha, China participated. Baseline pedestrian safety assessment occurred in the VR environment and through unobtrusive observation of a subsample crossing a street for 11 days outside school...
December 5, 2017: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/29209193/human-avatar-symbiosis-for-the-treatment-of-auditory-verbal-hallucinations-in-schizophrenia-through-virtual-augmented-reality-and-brain-computer-interfaces
#12
Antonio Fernández-Caballero, Elena Navarro, Patricia Fernández-Sotos, Pascual González, Jorge J Ricarte, José M Latorre, Roberto Rodriguez-Jimenez
This perspective paper faces the future of alternative treatments that take advantage of a social and cognitive approach with regards to pharmacological therapy of auditory verbal hallucinations (AVH) in patients with schizophrenia. AVH are the perception of voices in the absence of auditory stimulation and represents a severe mental health symptom. Virtual/augmented reality (VR/AR) and brain computer interfaces (BCI) are technologies that are growing more and more in different medical and psychological applications...
2017: Frontiers in Neuroinformatics
https://www.readbyqxmd.com/read/29208222/using-virtual-reality-to-study-visual-performances-of-honeybees
#13
REVIEW
Patrick Schultheiss, Alexis Buatois, Aurore Avarguès-Weber, Martin Giurfa
Virtual reality (VR) offers an appealing experimental framework for studying visual performances of insects under highly controlled conditions. In the case of the honeybee Apis mellifera, this possibility may fill the gap between behavioural analyses in free-flight and cellular analyses in the laboratory. Using automated, computer-controlled systems, it is possible to generate virtual stimuli or even entire environments that can be modified to test hypotheses on bee visual behaviour. The bee itself can remain tethered in place, making it possible to record neural activity while the bees is performing behavioural tasks...
December 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29207045/effect-of-atractylodes%C3%A2-macrocephala-rhizoma-on-isoproterenol%C3%A2-induced-ventricular-remodeling-in-rats
#14
Xiao-Hua Cui, Hui-Lin Wang, Rong Wu, Ping-An Yao, Ke-Zhao Wei, Jian-Ping Gao
Myocardial infarction (MI) is the primary cause of ventricular remodeling (VR). The aim of the present study was to determine the effect of Atractylodis macrocephalae rhizoma (AMR) on VR induced by isoproterenol (ISO) in rats. Male Sprague Dawley rats were randomly divided into the normal control, ISO‑induced and AMR groups. Rats in the ISO‑induced and AMR groups were subcutaneously injected with 85 mg/kg/day ISO for two consecutive days. Compared with the ISO‑induced group, AMR normalized the levels of hemodynamic parameters, markedly attenuated myocardial pathological damage, decreased the level of N‑terminal prohormone of brain natriuretic peptide, and inhibited cardiac hypertrophy and myocardial fibrosis...
November 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29204128/the-art-gallery-test-a-preliminary-comparison-between-traditional-neuropsychological-and-ecological-vr-based-tests
#15
Pedro Gamito, Jorge Oliveira, Daniyal Alghazzawi, Habib Fardoun, Pedro Rosa, Tatiana Sousa, Ines Maia, Diogo Morais, Paulo Lopes, Rodrigo Brito
Ecological validity should be the cornerstone of any assessment of cognitive functioning. For this purpose, we have developed a preliminary study to test the Art Gallery Test (AGT) as an alternative to traditional neuropsychological testing. The AGT involves three visual search subtests displayed in a virtual reality (VR) art gallery, designed to assess visual attention within an ecologically valid setting. To evaluate the relation between AGT and standard neuropsychological assessment scales, data were collected on a normative sample of healthy adults (n = 30)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29202458/integrating-light-sheet-imaging-with-virtual-reality-to-recapitulate-developmental-cardiac-mechanics
#16
Yichen Ding, Arash Abiri, Parinaz Abiri, Shuoran Li, Chih-Chiang Chang, Kyung In Baek, Jeffrey J Hsu, Elias Sideris, Yilei Li, Juhyun Lee, Tatiana Segura, Thao P Nguyen, Alexander Bui, René R Sevag Packard, Peng Fei, Tzung K Hsiai
Currently, there is a limited ability to interactively study developmental cardiac mechanics and physiology. We therefore combined light-sheet fluorescence microscopy (LSFM) with virtual reality (VR) to provide a hybrid platform for 3D architecture and time-dependent cardiac contractile function characterization. By taking advantage of the rapid acquisition, high axial resolution, low phototoxicity, and high fidelity in 3D and 4D (3D spatial + 1D time or spectra), this VR-LSFM hybrid methodology enables interactive visualization and quantification otherwise not available by conventional methods, such as routine optical microscopes...
November 16, 2017: JCI Insight
https://www.readbyqxmd.com/read/29198889/virtual-reality-based-simulators-for-cranial-tumor-surgery-a-systematic-review
#17
REVIEW
Travis Mazur, Tarek R Mansour, Luke Mugge, Azedine Medkour
BACKGROUND: Virtual reality (VR) simulators have become useful tools in various fields of medicine. Prominent uses of VR technologies include assessment of physician skills and for pre-surgical planning. VR has demonstrated effectiveness in multiple surgical specialties, yet its use in the field of neurosurgery remains limited to date. OBJECTIVES: To examine all current literature on VR based simulation for pre-surgical planning and training in cranial tumor surgeries and to assess the quality of these studies...
November 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29194518/coincidental-ganglionated-plexus-modification-during-radiofrequency-pulmonary-vein-isolation-and-post-ablation-arrhythmia-recurrence
#18
Georgios Giannopoulos, Charalampos Kossyvakis, Christos Angelidis, Vasiliki Panagopoulou, Dimitrios Tsiachris, Dimitrios A Vrachatis, Konstantinos Doudoumis, Konstantinos Letsas, Stamatina Pagoni, Christodoulos Stefanadis, Vassilios P Vassilikos, John Lekakis, Spyridon Deftereos
Aims: Vagal responses (VR) during left atrial ablation for atrial fibrillation (AF) treatment have been reported to be associated with less recurrences, presumably because they are a sign of ganglionated plexi modification. Our objective was to evaluate whether coincidentally elicited VR during left atrial ablation are associated with lower AF recurrence rates. Methods and results: This is a post hoc analysis of a prospective study of 291 patients with paroxysmal AF undergoing radiofrequency pulmonary vein isolation (PVI)...
December 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29194024/adapting-the-mullen-scales-of-early-learning-for-a-standardized-measure-of-development-in-children-with-rett-syndrome
#19
Tessa Clarkson, Jocelyn LeBlanc, Geneva DeGregorio, Vanessa Vogel-Farley, Katherine Barnes, Walter E Kaufmann, Charles A Nelson
Rett Syndrome (RTT) is characterized by severe impairment in fine motor (FM) and expressive language (EL) function, making accurate evaluations of development difficult with standardized assessm ents. In this study, the administration and scoring of the Mullen Scales of Early Learning (MSEL) were adapted to eliminate the confounding effects of FM and EL impairments in assessing development. Forty-seven girls with RTT were assessed with the Adapted-MSEL (MSEL-A), a subset (n = 30) was also assessed using the Vineland Adaptive Behavior Scales-Second Edition (Vineland-II) and a further subset (n = 17) was assessed using an eye-tracking version of the MSEL (MSEL-ET)...
December 2017: Intellectual and Developmental Disabilities
https://www.readbyqxmd.com/read/29193766/negative-hbcag-in-immunohistochemistry-assay-of-liver-biopsy-is-a-predictive-factor-for-the-treatment-of-patients-with-nucleos-t-ide-analogue-therapy
#20
Mingxing Huang, Jian Liu, Monica Chow, Xuan Zhou, Zongping Han, Zhenjian He, Jinfang Xue, Zhe Zhu, Xinhua Li, Jinyu Xia
The hepatitis B core antigen (HBcAg) is an important target for antiviral response in chronic hepatitis B (CHB) patients. However, the correlation between HBcAg in the hepatocyte nucleus and nucleos(t)ide analogue (NA) therapeutic response is unclear. We sought to evaluate the role of HBcAg by analysing liver biopsies for viral response in NA-naïve hepatitis B e antigen (HBeAg) positive (+) CHB patients via immunohistochemistry (IHC). A total of 48 HBcAg-negative (-) patients and 48 HBcAg (+) patients with matching baseline characteristics were retrospectively analysed for up to 288 weeks...
November 29, 2017: Journal of Cellular and Molecular Medicine
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