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https://www.readbyqxmd.com/read/29458201/computer-assisted-surgery-in-acetabular-fractures-virtual-reduction-of-acetabular-fracture-using-the-first-patient-specific-biomechanical-model-simulator
#1
M Boudissa, H Oliveri, M Chabanas, J Tonetti
Preoperative planning for the management of acetabular fracture is founded on geometric models allowing virtual repositioning of the bone fragments, but not taking account of soft tissue and the realities of the surgical procedure. The present technical note reports results using the first simulator to be based on a patient-specific biomechanical model, simulating the action of forces on the fragments and also the interactions between soft issue and bone: muscles, capsules, ligaments, and bone contacts. In all 14 cases, biomechanical simulation faithfully reproduced the intraoperative behavior of the various bone fragments and reduction quality...
February 16, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29456486/generic-hrtfs-may-be-good-enough-in-virtual-reality-improving-source-localization-through-cross-modal-plasticity
#2
Christopher C Berger, Mar Gonzalez-Franco, Ana Tajadura-Jiménez, Dinei Florencio, Zhengyou Zhang
Auditory spatial localization in humans is performed using a combination of interaural time differences, interaural level differences, as well as spectral cues provided by the geometry of the ear. To render spatialized sounds within a virtual reality (VR) headset, either individualized or generic Head Related Transfer Functions (HRTFs) are usually employed. The former require arduous calibrations, but enable accurate auditory source localization, which may lead to a heightened sense of presence within VR. The latter obviate the need for individualized calibrations, but result in less accurate auditory source localization...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29456118/simulation-in-paediatric-urology-and-surgery-part-2-an-overview-of-simulation-modalities-and-their-applications
#3
REVIEW
R M Nataraja, N Webb, P J Lopez
Surgical training has changed radically in the last few decades. The traditional Halstedian model of time-bound apprenticeship has been replaced with competency-based training. In our previous article, we presented an overview of learning theory relevant to clinical teaching; a summary for the busy paediatric surgeon and urologist. We introduced the concepts underpinning current changes in surgical education and training. In this next article, we give an overview of the various modalities of surgical simulation, the educational principles that underlie them, and potential applications in clinical practice...
February 2, 2018: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29453980/virtual-reality-for-upper-limb-rehabilitation-in-sub-acute-and-chronic-stroke-a-randomized-controlled-trial
#4
Pawel Kiper, Andrzej Szczudlik, Michela Agostini, Jozef Opara, Roman Nowobilski, Laura Ventura, Paolo Tonin, Andrea Turolla
OBJECTIVE: To evaluate the effectiveness of reinforced feedback in virtual environment (RFVE) treatment combined with conventional rehabilitation (CR) in comparison with CR alone, and to study whether changes are related to stroke aetiology (i.e. ischemic or hemorrhagic). DESIGN: Randomized controlled trial. SETTING: Inpatients in a hospital facility for intensive rehabilitation. PARTICIPANTS: 136 patients within one year from onset of a single stroke...
February 14, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29451586/virtual-reality-exposure-therapy-for-fear-of-driving-analysis-of-clinical-characteristics-physiological-response-and-sense-of-presence
#5
Rafael T da Costa, Marcele R de Carvalho, Pedro Ribeiro, Antonio E Nardi
OBJECTIVE: To investigate the reactions of women with driving phobia to a therapeutic program of scheduled virtual reality exposure treatment (VRET) sessions. METHODS: The study intervention consisted of a computer game with car-driving scenarios that included several traffic situations. We investigated the participants' sense of presence, subjective distress, and physiological responses during eight virtual-reality exposures. We also evaluated clinical characteristics, driving cognitions, and quality of life in the participants...
February 15, 2018: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/29445864/playing-to-your-skills-a-randomised-controlled-trial-evaluating-a-dedicated-video-game-for-minimally-invasive-surgery
#6
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
https://www.readbyqxmd.com/read/29445183/reducing-risk-and-improving-maternal-perspective-taking-and-empathy-using-virtual-embodiment
#7
Catherine Hamilton-Giachritsis, Domna Banakou, Manuela Garcia Quiroga, Christos Giachritsis, Mel Slater
The ability to perspective-take (cognitive awareness of another's state) and empathise (emotional/affective response) are important characteristics for sensitive, co-operative and constructive parenting, which assists in developing adaptive functioning for children. For the first time, immersive virtual reality was used to place parents in the position of a child in order to assess impact on perspective-taking and empathy. This novel study was conducted with 20 non-high risk Spanish mothers (a pilot study with 12 mothers is reported in supplementary files)...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29444207/the-functional-network-signature-of-heterogeneity-in-freezing-of-gait
#8
Kaylena A Ehgoetz Martens, Julie M Hall, Matthew J Georgiades, Moran Gilat, Courtney C Walton, Elie Matar, Simon J G Lewis, James M Shine
Freezing of gait is a complex, heterogeneous, and highly variable phenomenon whose pathophysiology and neural signature remains enigmatic. Evidence suggests that freezing is associated with impairments across cognitive, motor and affective domains; however, most research to date has focused on investigating one axis of freezing of gait in isolation. This has led to inconsistent findings and a range of different pathophysiological models of freezing of gait, due in large part to the tendency for studies to investigate freezing of gait as a homogeneous entity...
February 9, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29443989/optical-see-through-maxwellian-near-to-eye-display-with-an-enlarged-eyebox
#9
Seong-Bok Kim, Jae-Hyeung Park
We propose a Maxwellian near-to-eye display implemented using a multiplexed holographic optical element. Maxwellian configuration removes the focal cue of the displayed virtual image completely, presenting an always-focused image to the observer regardless of the focal length of the eye. The transparent property of the holographic optical element enables the optical see-through feature, making the proposed near-to-eye display suitable for augmented reality applications. The multiplexing of multiple concave mirrors into a single holographic optical element enlarges the effective eyebox, relaxing the limitation of the conventional Maxwellian displays...
February 15, 2018: Optics Letters
https://www.readbyqxmd.com/read/29442357/virtual-reality-training-for-children-with-unilateral-cerebral-palsy
#10
Ya-Ching Hung, Andrew M Gordon
No abstract text is available yet for this article.
February 14, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29435758/laptrain-multi-modality-training-curriculum-for-laparoscopic-cholecystectomy-results-of-a-randomized-controlled-trial
#11
K F Kowalewski, C R Garrow, T Proctor, A A Preukschas, M Friedrich, P C Müller, H G Kenngott, L Fischer, B P Müller-Stich, F Nickel
BACKGROUND: Multiple training modalities for laparoscopy have different advantages, but little research has been conducted on the benefit of a training program that includes multiple different training methods compared to one method only. This study aimed to evaluate benefits of a combined multi-modality training program for surgical residents. METHODS: Laparoscopic cholecystectomy (LC) was performed on a porcine liver as the pre-test. Randomization was stratified for experience to the multi-modality Training group (12 h of training on Virtual Reality (VR) and box trainer) or Control group (no training)...
February 12, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29429949/virtual-reality-assisted-therapy-in-patients-with-psychosis
#12
Kristiina Kompus
No abstract text is available yet for this article.
February 8, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29429948/virtual-reality-based-cognitive-behavioural-therapy-versus-waiting-list-control-for-paranoid-ideation-and-social-avoidance-in-patients-with-psychotic-disorders-a-single-blind-randomised-controlled-trial
#13
Roos M C A Pot-Kolder, Chris N W Geraets, Wim Veling, Marije van Beilen, Anton B P Staring, Harm J Gijsman, Philippe A E G Delespaul, Mark van der Gaag
BACKGROUND: Many patients with psychotic disorders have persistent paranoid ideation and avoid social situations because of suspiciousness and anxiety. We investigated the effects of virtual-reality-based cognitive behavioural therapy (VR-CBT) on paranoid thoughts and social participation. METHODS: In this randomised controlled trial at seven Dutch mental health centres, outpatients aged 18-65 years with a DSM-IV-diagnosed psychotic disorder and paranoid ideation in the past month were randomly assigned (1:1) via block randomisation to VR-CBT (in addition to treatment as usual) or the waiting list control group (treatment as usual)...
February 8, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29428343/aerobic-stimulus-induced-by-virtual-reality-games-in-stroke-survivors
#14
Julio Cesar Silva de Sousa, Camila Torriani-Pasin, Amanda Barboza Tosi, Rafael Yokoyama Fecchio, Luiz Augusto Riani da Costa, Cláudia Lúcia de Moraes Forjaz
OBJECTIVE: To evaluate whether virtual reality games (VRG) in stroke survivors produce significant and reproducible heart rate (HR) and oxygen consumption (VO2) responses during their execution, corresponding to an intensity between the anaerobic threshold (AT) and the respiratory compensation point (RCP). DESIGN: Single subjects repeated measure design SETTING: Stroke survivors registered from a rehabilitation program PARTICIPANTS: Twelve chronic hemiparetic stroke survivors (10 men, 58 ± 12 years) rated at 3 or 4 in the Functional Ambulation Categories (FAC)...
February 8, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29427357/validation-of-reaching-in-a-virtual-environment-in-typically-developing-children-and-children-with-mild-unilateral-cerebral-palsy
#15
Maxime T Robert, Mindy F Levin
AIM: To compare three reaching movements made in two planes between a low-cost, game-based virtual reality and a matched physical environment in typically developing children and children with cerebral palsy (CP). To determine if differences in kinematics are related to sensory deficits. METHOD: An observational study in which 27 children (typically developing, n=17, mean age 13y, [SD] 2y 2mo, range 9y 3mo-17y 2mo; CP, n=10, mean age 13y 8mo, [SD] 1y 8mo, range 11y 1mo-17y 1mo, Manual Ability Classification System levels I-II) performed 15 trials of three gestures in each of a virtual reality and a matched physical environment...
February 10, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29426819/offenders-become-the-victim-in-virtual-reality-impact-of-changing-perspective-in-domestic-violence
#16
S Seinfeld, J Arroyo-Palacios, G Iruretagoyena, R Hortensius, L E Zapata, D Borland, B de Gelder, M Slater, M V Sanchez-Vives
The role of empathy and perspective-taking in preventing aggressive behaviors has been highlighted in several theoretical models. In this study, we used immersive virtual reality to induce a full body ownership illusion that allows offenders to be in the body of a victim of domestic abuse. A group of male domestic violence offenders and a control group without a history of violence experienced a virtual scene of abuse in first-person perspective. During the virtual encounter, the participants' real bodies were replaced with a life-sized virtual female body that moved synchronously with their own real movements...
February 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29421343/applications-of-virtual-reality-in-individuals-with-alcohol-misuse-a-systematic-review
#17
REVIEW
Alexandra Ghiţă, José Gutiérrez-Maldonado
BACKGROUND: Alcohol use and misuse have been intensively studied, due to their negative consequences in the general population. Evidence-based literature emphasizes that alcohol craving plays a crucial role in the development and maintenance of alcohol-drinking patterns. Many individuals develop Alcohol Use Disorders (AUD); significantly, after treatment many also experience relapses, in which alcohol craving has been repeatedly implicated. Cue-exposure therapy (CET) has been widely used in the treatment of alcohol misuse, but the results are inconsistent...
February 1, 2018: Addictive Behaviors
https://www.readbyqxmd.com/read/29419758/sensitivity-to-social-contingency-in-adults-with-high-functioning-autism-during-computer-mediated-embodied-interaction
#18
Leonardo Zapata-Fonseca, Tom Froese, Leonhard Schilbach, Kai Vogeley, Bert Timmermans
Autism Spectrum Disorder (ASD) can be understood as a social interaction disorder. This makes the emerging "second-person approach" to social cognition a more promising framework for studying ASD than classical approaches focusing on mindreading capacities in detached, observer-based arrangements. According to the second-person approach, embodied, perceptual, and embedded or interactive capabilities are also required for understanding others, and these are hypothesized to be compromised in ASD. We therefore recorded the dynamics of real-time sensorimotor interaction in pairs of control participants and participants with High-Functioning Autism (HFA), using the minimalistic human-computer interface paradigm known as "perceptual crossing" (PC)...
February 8, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29417140/virtual-and-augmented-reality-put-a-twist-on-medical-education
#19
Bridget M Kuehn
No abstract text is available yet for this article.
February 7, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29411953/exploring-the-use-of-high-fidelity-simulation-training-to-enhance-clinical-skills
#20
Lucy Ann Kirkham
The use of interprofessional simulation training to enhance nursing students' performance of technical and non-technical clinical skills is becoming increasingly common. Simulation training can involve the use of role play, virtual reality or patient simulator manikins to replicate clinical scenarios and assess the nursing student's ability to, for example, undertake clinical observations or work as part of a team. Simulation training enables nursing students to practise clinical skills in a safe environment...
February 7, 2018: Nursing Standard
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