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https://www.readbyqxmd.com/read/28524798/revisiting-the-rules-for-freehand-ventriculostomy-a-virtual-reality-analysis
#1
Clemens Raabe, Jens Fichtner, Jürgen Beck, Jan Gralla, Andreas Raabe
OBJECTIVE Frontal ventriculostomy is one of the most frequent and standardized procedures in neurosurgery. However, many first and subsequent punctures miss the target, and suboptimal placement or misplacement of the catheter is common. The authors therefore reexamined the landmarks and rules to determine the entry point and trajectory with the best hit rate (HtR). METHODS The authors randomly selected CT scans from their institution's DICOM pool that had been obtained in 50 patients with normal ventricular and skull anatomy and without ventricular puncture...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28479787/indigenous-inexpensive-practice-models-for-skill-development-in-neuroendoscopy
#2
Jitin Bajaj, Yad Ram Yadav, Anurag Pateriya, Vijay Parihar, Shailendra Ratre, Amitesh Dubey
INTRODUCTION: Neurosurgery is a branch having a tough learning curve. Residents generally get very less hands-on exposure for advanced procedures like neuroendoscopy. With the limited number of cadavers available and ethical issues associated with animal models, practice models, and simulators are becoming the able alternative. Most of these simulators are very costly. We tried to build indigenous inexpensive practice models that can help in developing most of the skills of neuroendoscopy...
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28451520/three-dimensional-computer-simulated-navigation-in-endoscopic-neurosurgery
#3
Roberta K Sefcik, Jonathan Rasouli, Joshua B Bederson, Raj K Shrivastava
BACKGROUND: In order to address the pre- and perioperative need for visualization and prediction of patient-specific anatomy for surgical planning, endoscopic neurosurgeons have increasingly relied on computerized navigation devices to guide their surgical approaches. OBJECTIVE: This manuscript aims to review: 1) the use of neuronavigation in endoscopic neurosurgery for pre-operative planning, 2) the intraoperative advantages of neuronavigation in endoscopic neurosurgery, and 3) the effects of navigation guidance on operative time, registration accuracy, brain shift, and avoidance of complications...
June 2017: Interdisciplinary Neurosurgery: Advanced Techniques and Case Management
https://www.readbyqxmd.com/read/28438070/creation-of-a-novel-simulator-for-minimally-invasive-neurosurgery-fusion-of-3d-printing-and-special-effects
#4
Peter Weinstock, Roberta Rehder, Sanjay P Prabhu, Peter W Forbes, Christopher J Roussin, Alan R Cohen
OBJECTIVE Recent advances in optics and miniaturization have enabled the development of a growing number of minimally invasive procedures, yet innovative training methods for the use of these techniques remain lacking. Conventional teaching models, including cadavers and physical trainers as well as virtual reality platforms, are often expensive and ineffective. Newly developed 3D printing technologies can recreate patient-specific anatomy, but the stiffness of the materials limits fidelity to real-life surgical situations...
April 25, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28389794/construct-and-face-validity-of-the-educational-computer-based-environment-ece-assessment-scenarios-for-basic-endoneurosurgery-skills
#5
Nergiz Ercil Cagiltay, Erol Ozcelik, Gokhan Sengul, Mustafa Berker
BACKGROUND: In neurosurgery education, there is a paradigm shift from time-based training to criterion-based model for which competency and assessment becomes very critical. Even virtual reality simulators provide alternatives to improve education and assessment in neurosurgery programs and allow for several objective assessment measures, there are not many tools for assessing the overall performance of trainees. This study aims to develop and validate a tool for assessing the overall performance of participants in a simulation-based endoneurosurgery training environment...
April 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28343727/carbapenemase-producing-acinetobacter-baumannii-an-outbreak-report-with-special-highlights-on-economic-burden
#6
J Gagnaire, A Gagneux-Brunon, A Pouvaret, F Grattard, A Carricajo, H Favier, A Mattei, B Pozzetto, C Nuti, F Lucht, P Berthelot, E Botelho-Nevers
OBJECTIVE: We aimed to describe the management of a carbapenemase-producing Acinetobacter baumannii (CP-AB) outbreak using the Outbreak Reports and Intervention Studies of Nosocomial Infection (ORION) statement. We also aimed to evaluate the cost of the outbreak and simulate costs if a dedicated unit to manage such outbreak had been set-up. METHODS: We performed a prospective epidemiological study. Multiple interventions were implemented including cohorting measures and limitation of admissions...
March 23, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28341408/the-effect-of-3-dimensional-simulation-on-neurosurgical-skill-acquisition-and-surgical-performance-a-review-of-the-literature
#7
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/28269442/development-of-a-finger-like-mechanism-of-end-effector-for-micro-surgery
#8
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
#9
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
https://www.readbyqxmd.com/read/28175541/335%C3%A2-a-modular-multimodality-integrative-pipeline-for-neurosurgery-simulation-and-visualization
#10
Anthony Beardsworth Costa, Joshua B Bederson
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28169225/intensity-based-2d-3d-registration-for-lead-localization-in-robot-guided-deep-brain-stimulation
#11
Stefan Hunsche, Dieter Sauner, Faycal El Majdoub, Clemens Neudorfer, Jörg Poggenborg, Axel Goßmann, Mohammad Maarouf
Intraoperative assessment of lead localization has become a standard procedure during deep brain stimulation surgery in many centers, allowing immediate verification of targeting accuracy and, if necessary, adjustment of the trajectory. The most suitable imaging modality to determine lead positioning, however, remains controversially discussed. Current approaches entail the implementation of computed tomography and magnetic resonance imaging. In the present study, we adopted the technique of intensity-based 2D 3D registration that is commonly employed in stereotactic radiotherapy and spinal surgery...
March 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28047334/su-f-j-02-flexible-training-of-mr-guided-laser-ablation-models-via-global-optimization
#12
S J Fahrenholtz, R J Stafford, R Madankan, J D Hazle, D Fuentes
PURPOSE: MR-guided laser ablation is currying interest in neurosurgery as a minimally invasive procedure. The procedure is planned via an assumed lesion overlaid on various anatomic and functional images. Computational models of heat transfer may further inform planning the intervention, reducing surgical morbidity and ensuring therapeutic effect. These models require physical parameter data, via less relevant literature values. Using commercialized laser ablation equipment combined with MR temperature imaging (MRTI) feedback, recent work has demonstrated the use of inverse problems as a means to gain the necessary information via retrospective analysis...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27981065/art-3-5d-an-algorithm-to-label-arteries-and-veins-from-three-dimensional-angiography
#13
Beatrice Barra, Elena De Momi, Giancarlo Ferrigno, Guglielmo Pero, Francesco Cardinale, Giuseppe Baselli
Preoperative three-dimensional (3-D) visualization of brain vasculature by digital subtraction angiography from computerized tomography (CT) in neurosurgery is gaining more and more importance, since vessels are the primary landmarks both for organs at risk and for navigation. Surgical embolization of cerebral aneurysms and arteriovenous malformations, epilepsy surgery, and stereoelectroencephalography are a few examples. Contrast-enhanced cone-beam computed tomography (CE-CBCT) represents a powerful facility, since it is capable of acquiring images in the operation room, shortly before surgery...
October 2016: Journal of Medical Imaging
https://www.readbyqxmd.com/read/27943227/practical-aspects-in-neuroendoscopic-techniques-and-complication-avoidance-a-systematic-review
#14
Yad Ram Yadav, Jitin Bajaj, Vijay Parihar, Shailendra Ratre, Anurag Pateriya
Although endoscopic techniques have many advantages including improved visualizations and magnification., these are also associated with limitations. Objective of this study is to discuss practical aspects that can reduce complications after endoscopic procedures, and their management. Review is based on personal experience of more than 2000 neuroendoscopic procedures performed by the senior author. Topic search was made on PubMed using Neuroendoscopy, complications and neuroendoscopy, complication avoidance and neuroendoscopy, endoscopic neurosurgery, and minimally invasive neurosurgery...
November 11, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27920940/3d-printing-in-neurosurgery-a-systematic-review
#15
REVIEW
Michael Randazzo, Jared M Pisapia, Nickpreet Singh, Jayesh P Thawani
BACKGROUND: The recent expansion of three-dimensional (3D) printing technology into the field of neurosurgery has prompted a widespread investigation of its utility. In this article, we review the current body of literature describing rapid prototyping techniques with applications to the practice of neurosurgery. METHODS: An extensive and systematic search of the Compendex, Scopus, and PubMed medical databases was conducted using keywords relating to 3D printing and neurosurgery...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27911234/ventriculostomy-associated-hemorrhage-a-risk-assessment-by-radiographic-simulation
#16
Faith C Robertson, Muhammad M Abd-El-Barr, Srinivasan Mukundan, William B Gormley
OBJECTIVE Ventriculostomy entry sites are commonly selected by freehand estimation of Kocher's point or approximations from skull landmarks and a trajectory toward the ipsilateral frontal horn of the lateral ventricles. A recognized ventriculostomy complication is intracranial hemorrhage from cortical vessel damage; reported rates range from 1% to 41%. In this report, the authors assess hemorrhagic risk by simulating traditional ventriculostomy trajectories and using CT angiography (CTA) with venography (CTV) data to identify potential complications, specifically from cortical draining veins...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27836702/advancement-of-surgical-visualization-methods-comparison-study-between-traditional-microscopic-surgery-and-a-novel-robotic-optoelectronic-visualization-tool-for-spinal-surgery
#17
Marc D Moisi, Kimberly Hoang, R Shane Tubbs, Jeni Page, Christian Fisahn, David Paulson, Shiveindra Jeyamohan, Johnny Delashaw, David Hanscom, Rod J Oskouian, Jens Chapman
INTRODUCTION: The operating microscope (OM) has become instrumental in aiding surgeons during key microdissection with greater safety and detail. An exoscope offers similar detail with improved functionality and greater implications for live teaching and improved operating room flow. METHODS: Eleven senior neurosurgery residents and fellows performed unilateral, single-level laminotomies on fresh cadavers using an OM and exoscope. Three attending spine surgeons blinded for the visualization technique used then reviewed and graded each decompression...
February 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27817764/supplementary-educational-models-in-canadian-neurosurgery-residency-programs
#18
Won Hyung A Ryu, Sonny Chan, Garnette R Sutherland
BACKGROUND: The proposed implementation of work hour restrictions has presented a significant challenge of maintaining the quality of resident education and ensuring adequate hands-on experience that is essential for novice surgeons. To maintain the level of resident surgical competency, revision of the apprentice model of surgical education to include supplementary educational methods, such as laboratory and virtual reality (VR) simulations, have become frequent topics of discussion...
March 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/27733961/simulator-based-angiography-and-endovascular-neurosurgery-curriculum-a-longitudinal-evaluation-of-performance-following-simulator-based-angiography-training
#19
J Scott Pannell, David R Santiago-Dieppa, Arvin R Wali, Brian R Hirshman, Jeffrey A Steinberg, Vincent J Cheung, David Oveisi, Jon Hallstrom, Alexander A Khalessi
This study establishes performance metrics for angiography and neuroendovascular surgery procedures based on longitudinal improvement in individual trainees with differing levels of training and experience. Over the course of 30 days, five trainees performed 10 diagnostic angiograms, coiled 10 carotid terminus aneurysms in the setting of subarachnoid hemorrhage, and performed 10 left middle cerebral artery embolectomies on a Simbionix Angio Mentor™ simulator. All procedures were nonconsecutive. Total procedure time, fluoroscopy time, contrast dose, heart rate, blood pressures, medications administered, packing densities, the number of coils used, and the number of stent-retriever passes were recorded...
August 29, 2016: Curēus
https://www.readbyqxmd.com/read/27731390/in-vivo-near-infrared-virtual-intraoperative-surgical-photoacoustic-optical-coherence-tomography
#20
Donghyun Lee, Changho Lee, Sehui Kim, Qifa Zhou, Jeehyun Kim, Chulhong Kim
Since its first implementation in otolaryngological surgery nearly a century ago, the surgical microscope has improved the accuracy and the safety of microsurgeries. However, the microscope shows only a magnified surface view of the surgical region. To overcome this limitation, either optical coherence tomography (OCT) or photoacoustic microscopy (PAM) has been independently combined with conventional surgical microscope. Herein, we present a near-infrared virtual intraoperative photoacoustic optical coherence tomography (NIR-VISPAOCT) system that combines both PAM and OCT with a conventional surgical microscope...
October 12, 2016: Scientific Reports
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