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Neurosurgical Simulation

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https://www.readbyqxmd.com/read/28811078/mentoring-models-in-neurosurgical-training-review-of-literature
#1
REVIEW
Taiwo Akhigbe, Ardalan Zolnourian, Diederik Bulters
BACKGROUND: Effective mentoring is an invaluable element in the development of next generation of neurosurgeons. A mentor helps to develop professional core values, technical and non-technical skills, attitudes and disposition required to be qualified and competent neurosurgeon. Giving the invaluable significance of mentoring in neurosurgery, we undertook this literature review to identify mentoring models evaluating its success and relative benefit. METHODS: Literature search identified using MeSH word 'mentor', mentoring, mentorship, mentoring model, neurosurgery' in MEDLINE, EMBASE and Scopus databases from 1990 to 2016...
August 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28765716/simulation-training-in-neurosurgery-advances-in-education-and-practice
#2
REVIEW
Sanjay Konakondla, Reginald Fong, Clemens M Schirmer
The current simulation technology used for neurosurgical training leaves much to be desired. Significant efforts are thoroughly exhausted in hopes of developing simulations that translate to give learners the "real-life" feel. Though a respectable goal, this may not be necessary as the application for simulation in neurosurgical training may be most useful in early learners. The ultimate uniformly agreeable endpoint of improved outcome and patient safety drives these investments. We explore the development, availability, educational taskforces, cost burdens and the simulation advancements in neurosurgical training...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28754068/a-new-head-mounted-display-based-augmented-reality-system-in-neurosurgical-oncology-a-study-on-phantom
#3
Fabrizio Cutolo, Antonio Meola, Marina Carbone, Sara Sinceri, Federico Cagnazzo, Ennio Denaro, Nicola Esposito, Mauro Ferrari, Vincenzo Ferrari
PURPOSE: Benefits of minimally invasive neurosurgery mandate the development of ergonomic paradigms for neuronavigation. Augmented Reality (AR) systems can overcome the shortcomings of commercial neuronavigators. The aim of this work is to apply a novel AR system, based on a head-mounted stereoscopic video see-through display, as an aid in complex neurological lesion targeting. Effectiveness was investigated on a newly designed patient-specific head mannequin featuring an anatomically realistic brain phantom with embedded synthetically created tumors and eloquent areas...
December 2017: Computer Assisted Surgery (Abingdon, England)
https://www.readbyqxmd.com/read/28725549/performance-of-unscented-kalman-filter-tractography-in-edema-analysis-of-the-two-tensor-model
#4
Ruizhi Liao, Lipeng Ning, Zhenrui Chen, Laura Rigolo, Shun Gong, Ofer Pasternak, Alexandra J Golby, Yogesh Rathi, Lauren J O'Donnell
Diffusion MRI tractography is increasingly used in pre-operative neurosurgical planning to visualize critical fiber tracts. However, a major challenge for conventional tractography, especially in patients with brain tumors, is tracing fiber tracts that are affected by vasogenic edema, which increases water content in the tissue and lowers diffusion anisotropy. One strategy for improving fiber tracking is to use a tractography method that is more sensitive than the traditional single-tensor streamline tractography...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28684100/automaticity-of-force-application-during-simulated-brain-tumor-resection-testing-the-fitts-and-posner-model
#5
Abdulgadir Bugdadi, Robin Sawaya, Duaa Olwi, Gmaan Al-Zhrani, Hamed Azarnoush, Abdulrahman Jafar Sabbagh, Ghusn Alsideiri, Khalid Bajunaid, Fahad E Alotaibi, Alexander Winkler-Schwartz, Rolando Del Maestro
OBJECTIVE: The Fitts and Posner model of motor learning hypothesized that with deliberate practice, learners progress through stages to an autonomous phase of motor ability. To test this model, we assessed the automaticity of neurosurgeons, senior residents, and junior residents when operating on 2 identical tumors using the NeuroVR virtual reality simulation platform. DESIGN: Participants resected 9 identical simulated tumors on 2 occasions (total = 18 resections)...
July 3, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28673883/microsurgical-performance-after-sleep-interruption-a-neurotouch-simulator-study
#6
Alexander Micko, Karoline Knopp, Engelbert Knosp, Stefan Wolfsberger
OBJECTIVE: In times of the ubiquitous debate about doctors' working hour restrictions, it is still questionable if the physician's performance is impaired by high workload and long shifts. In this study we evaluated the impact of sleep interruption on the neurosurgical performance. METHODS: Ten medical students and ten neurosurgical residents were tested on the virtual-reality simulator NeuroTouch by performing the identical microsurgical task, well-rested (baseline test), and after sleep interruption at night (stress test)...
June 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28669295/nerve-transfer-versus-muscle-transfer-to-restore-elbow-flexion-after-pan-brachial-plexus-injury-a-cost-effectiveness-analysis
#7
Arvin R Wali, David R Santiago-Dieppa, Justin M Brown, Ross Mandeville
OBJECTIVE Pan-brachial plexus injury (PBPI), involving C5-T1, disproportionately affects young males, causing lifelong disability and decreased quality of life. The restoration of elbow flexion remains a surgical priority for these patients. Within the first 6 months of injury, transfer of spinal accessory nerve (SAN) fascicles via a sural nerve graft or intercostal nerve (ICN) fascicles to the musculocutaneous nerve can restore elbow flexion. Beyond 1 year, free-functioning muscle transplantation (FFMT) of the gracilis muscle can be used to restore elbow flexion...
July 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28658600/rheological-characterization-of-human-brain-tissue
#8
S Budday, G Sommer, J Haybaeck, P Steinmann, G A Holzapfel, E Kuhl
The rheology of ultrasoft materials like the human brain is highly sensitive to regional and temporal variations and to the type of loading. While recent experiments have shaped our understanding of the time-independent, hyperelastic response of human brain tissue, its time-dependent behavior under various loading conditions remains insufficiently understood. Here we combine cyclic and relaxation testing under multiple loading conditions, shear, compression, and tension, to understand the rheology of four different regions of the human brain, the cortex, the basal ganglia, the corona radiata, and the corpus callosum...
June 26, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28647655/face-content-and-construct-validity-of-an-aneurysm-clipping-model-using-human-placenta
#9
Evgenii Belykh, Eric J Miller, Ting Lei, Kristina Chapple, Vadim A Byvaltsev, Robert F Spetzler, Peter Nakaji, Mark C Preul
OBJECTIVE: Proficient open surgical treatment of cerebral aneurysms requires extensive training and practice. The goal of this study was to test the validity of a human placenta aneurysm model for surgical simulation training of aneurysm clipping. METHODS: Thirty participants were divided into 3 groups (n=10 per group) according to their neurosurgical experience: low experience, intermediate experience, and attending. Subjective measures were collected using the Aneurysm Clipping Participant Survey (n=27)...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28637947/neurosurgical-virtual-reality-simulation-for-brain-tumor-using-high-definition-computer-graphics-a-review-of-the-literature
#10
Taichi Kin, Hirofumi Nakatomi, Naoyuki Shono, Seiji Nomura, Toki Saito, Hiroshi Oyama, Nobuhito Saito
Simulation and planning of surgery using a virtual reality model is becoming common with advances in computer technology. In this study, we conducted a literature search to find trends in virtual simulation of surgery for brain tumors. A MEDLINE search for "neurosurgery AND (simulation OR virtual reality)" retrieved a total of 1,298 articles published in the past 10 years. After eliminating studies designed solely for education and training purposes, 28 articles about the clinical application remained. The finding that the vast majority of the articles were about education and training rather than clinical applications suggests that several issues need be addressed for clinical application of surgical simulation...
June 22, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28575459/intracranial-infectious-and-inflammatory-diseases-presenting-as-neurosurgical-pathologies
#11
Otto Rapalino, Mark E Mullins
There are many infectious and inflammatory processes affecting the central nervous system that can simulate other neurosurgical pathologies (e.g. tumor) and may precipitate a brain biopsy for definitive diagnosis if not suspected a priori. The challenge for the healthcare team is to recognize imaging features that support a nonsurgical pathology to avoid unnecessary interventions. This review aims to give a general overview of some common inflammatory and infectious entities that affect the central nervous system, with illustrative examples and highlighting important pearls and pitfalls...
June 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28574314/a-microcontroller-based-simulation-of-dural-venous-sinus-injury-for-neurosurgical-training
#12
Daniel R Cleary, Dominic A Siler, Nathaniel Whitney, Nathan R Selden
OBJECTIVE Surgical simulation has the potential to supplement and enhance traditional resident training. However, the high cost of equipment and limited number of available scenarios have inhibited wider integration of simulation in neurosurgical education. In this study the authors provide initial validation of a novel, low-cost simulation platform that recreates the stress of surgery using a combination of hands-on, model-based, and computer elements. Trainee skill was quantified using multiple time and performance measures...
June 2, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28513626/fabrication-of-cerebral-aneurysm-simulator-with-a-desktop-3d-printer
#13
Yu Liu, Qing Gao, Song Du, ZiChen Chen, JianZhong Fu, Bing Chen, ZhenJie Liu, Yong He
Now, more and more patients are suffering cerebral aneurysm. However, long training time limits the rapid growth of cerebrovascular neurosurgeons. Here we developed a novel cerebral aneurysm simulator which can be better represented the dynamic bulging process of cerebral aneurysm The proposed simulator features the integration of a hollow elastic vascular model, a skull model and a brain model, which can be affordably fabricated at the clinic (Fab@Clinic), under $25.00 each with the help of a low-cost desktop 3D printer...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28472336/association-of-hospitalization-for-neurosurgical-operations-in-magnet-hospitals-with-mortality-and-length-of-stay
#14
Symeon Missios, Kimon Bekelis
BACKGROUND: The association of Magnet hospital status with improved surgical outcomes remains an issue of debate. OBJECTIVE: To investigate whether hospitalization in a Magnet hospital is associated with improved outcomes for patients undergoing neurosurgical operations. METHODS: A cohort study was executed using all patients undergoing neurosurgical operations in New York registered in the Statewide Planning and Research Cooperative System database from 2009 to 2013...
May 3, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28468268/an-instrumented-glove-to-assess-manual-dexterity-in-simulation-based-neurosurgical-education
#15
Juan Diego Lemos, Alher Mauricio Hernandez, Georges Soto-Romero
The traditional neurosurgical apprenticeship scheme includes the assessment of trainee's manual skills carried out by experienced surgeons. However, the introduction of surgical simulation technology presents a new paradigm where residents can refine surgical techniques on a simulator before putting them into practice in real patients. Unfortunately, in this new scheme, an experienced surgeon will not always be available to evaluate trainee's performance. For this reason, it is necessary to develop automatic mechanisms to estimate metrics for assessing manual dexterity in a quantitative way...
April 29, 2017: Sensors
https://www.readbyqxmd.com/read/28341408/the-effect-of-3-dimensional-simulation-on-neurosurgical-skill-acquisition-and-surgical-performance-a-review-of-the-literature
#16
Anna D Clark, Damiano G Barone, Nicholas Candy, Mathew Guilfoyle, Karol Budohoski, Riikka Hofmann, Thomas Santarius, Ramez Kirollos, Rikin A Trivedi
OBJECTIVE: In recent years, 3-dimensional (3D) simulation of neurosurgical procedures has become increasingly popular as an addition to training programmes. However, there remains little objective evidence of its effectiveness in improving live surgical skill. This review analysed the current literature in 3D neurosurgical simulation, highlighting remaining gaps in the evidence base for improvement in surgical performance and suggests useful future research directions. DESIGN: An electronic search of the databases was conducted to identify studies investigating 3D virtual reality (VR) simulation for various types of neurosurgery...
March 22, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28338438/learning-brain-aneurysm-microsurgical-skills-in-a-human-placenta-model-predictive-validity
#17
Marcelo Magaldi Ribeiro de Oliveira, Carlos Eduardo Ferrarez, Taise Mosso Ramos, Jose Augusto Malheiros, Arthur Nicolato, Carla Jorge Machado, Mauro Tostes Ferreira, Fellype Borges de Oliveira, Cecília Félix Penido Mendes de Sousa, Pollyana Helena Vieira Costa, Sebastiao Gusmao, Giuseppe Lanzino, Rolando Del Maestro
OBJECTIVE Surgery for brain aneurysms is technically demanding. In recent years, the process to learn the technical skills necessary for these challenging procedures has been affected by a decrease in the number of surgical cases available and progressive restrictions on resident training hours. To overcome these limitations, surgical simulators such as cadaver heads and human placenta models have been developed. However, the effectiveness of these models in improving technical skills is unknown. This study assessed concurrent and predictive validity of brain aneurysm surgery simulation in a human placenta model compared with a "live" human brain cadaveric model...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28286317/7t-fmri-faster-temporal-resolution-yields-optimal-bold-sensitivity-for-functional-network-imaging-specifically-at-high-spatial-resolution
#18
Peter E Yoo, Sam E John, Shawna Farquharson, Jon O Cleary, Yan T Wong, Amanda Ng, Claire B Mulcahy, David B Grayden, Roger J Ordidge, Nicholas L Opie, Terence J O'Brien, Thomas J Oxley, Bradford A Moffat
Recent developments in accelerated imaging methods allow faster acquisition of high spatial resolution images. This could improve the applications of functional magnetic resonance imaging at 7 Tesla (7T-fMRI), such as neurosurgical planning and Brain Computer Interfaces (BCIs). However, increasing the spatial and temporal resolution will both lead to signal-to-noise ratio (SNR) losses due to decreased net magnetization per voxel and T1-relaxation effect, respectively. This could potentially offset the SNR efficiency gains made with increasing temporal resolution...
March 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28269442/development-of-a-finger-like-mechanism-of-end-effector-for-micro-surgery
#19
S M Kim, C M Park, J H Yoo, K Kim
Neurosurgery had been considered nearly impossible due to its technical difficulty and the danger to its special target organ, but with endoscopic methods, many such surgeries can be made safely through the nose. Endoscopic neurosurgery is limited by available instruments, however, and there remain some areas of the human body inaccessible to standard surgical tools. To overcome some of these limitations, in this study we developed a simple mechanism that could form a high curvature in a narrow space. The end product is a finger-like mechanism consisting of five body parts and four joints...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227688/development-of-a-finger-like-mechanism-of-end-effector-for-micro-surgery
#20
S M Kim, C M Park, J H Yoo, K Kim, S M Kim, C M Park, J H Yoo, K Kim, J H Yoo, K Kim, C M Park, S M Kim
Neurosurgery had been considered nearly impossible due to its technical difficulty and the danger to its special target organ, but with endoscopic methods, many such surgeries can be made safely through the nose. Endoscopic neurosurgery is limited by available instruments, however, and there remain some areas of the human body inaccessible to standard surgical tools. To overcome some of these limitations, in this study we developed a simple mechanism that could form a high curvature in a narrow space. The end product is a finger-like mechanism consisting of five body parts and four joints...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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