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Neurosurgical anatomy

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https://www.readbyqxmd.com/read/28931258/simulation-based-education-for-endoscopic-third-ventriculostomy-a-comparison-between-virtual-and-physical-training-models
#1
Gerben E Breimer, Faizal A Haji, Vivek Bodani, Melissa S Cunningham, Adriana-Lucia Lopez-Rios, Allan Okrainec, James M Drake
BACKGROUND: The relative educational benefits of virtual reality (VR) and physical simulation models for endoscopic third ventriculostomy (ETV) have not been evaluated "head to head." OBJECTIVE: To compare and identify the relative utility of a physical and VR ETV simulation model for use in neurosurgical training. METHODS: Twenty-three neurosurgical residents and 3 fellows performed an ETV on both a physical and VR simulation model. Trainees rated the models using 5-point Likert scales evaluating the domains of anatomy, instrument handling, procedural content, and the overall fidelity of the simulation...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927207/surgical-approaches-to-the-temporal-horn-an-anatomic-analysis-of-white-matter-tract-interruption
#2
Paulo A S Kadri, Jean G de Oliveira, Niklaus Krayenbühl, Ugur Türe, Evandro P L de Oliveira, Ossama Al-Mefty, Guilherme C Ribas
BACKGROUND: Surgical access to the temporal horn is necessary to treat tumors and vascular lesions, but is used mainly in patients with mediobasal temporal epilepsy. The surgical approaches to this cavity fall into 3 primary categories: lateral, inferior, and transsylvian. The current neurosurgical literature has underestimated the interruption of involved fiber bundles and the correlated clinical manifestations. OBJECTIVE: To delineate the interruption of fiber bundles during the different approaches to the temporal horn...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28891898/vascular-anomalies-of-posterior-fossa-and-their-implications
#3
Rajani Singh, Raj Kumar, Arushi Kumar
Posterior fossa houses very vital and sensitive structures namely midbrain, pons, medulla, and cerebellum. These structures are irrigated by vertebral, posterior inferior cerebellar, anterior inferior cerebellar, and superior cerebellar arteries. Parts of brain located in posterior fossa control important parts of body so any variation pertaining to stenosis, atresia, hypoplasia, fenestration, agenesis, and duplication in the arteries supplying these parts alter the irrigation pattern culminating into various morbid and mortal neurologic disorders...
September 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28879904/a-neurosurgical-perspective-to-approaches-to-the-orbit-a-cadaveric-study
#4
S Balaji Pai, M N Nagarjun
Neurosurgeons are getting increasingly involved in surgery for orbital tumours. The various approaches to the orbit can be challenging. The authors have demonstrated on cadavers the various approaches to the orbit which are required to be mastered by the neurosurgeon. The superior approaches which include the transcranial, supraorbital and the hybrid approaches are the most commonly utilized surgical approaches by the neurosurgeon for excision of orbital pathologies. The lateral orbitotomy is an elegant approach for excision of the tumours lateral to the optic Nerve and lacrimal gland tumours...
September 2017: Neurology India
https://www.readbyqxmd.com/read/28879421/the-history-of-rhoton-s-lab
#5
REVIEW
Toshio Matsushima, J Richard Lister, Ken Matsushima, Evandro de Oliveira, Erdener Timurkaynak, David A Peace, Shigeaki Kobayashi
The work performed in Dr. Rhoton's Lab, represented by over 500 publications on microneurosurgical anatomy, greatly contributed to improving the level of neurosurgical treatment throughout the world. The authors reviewed the development and activities of the Lab over 40 years. Dr. Albert L. Rhoton Jr., the founder of, and leader in, this field, displayed great creativity and ingenuity during his life. He devoted himself to perfecting his study methodology, employing high-definition photos and slides to enhance the quality of his published papers...
September 6, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28868200/the-open-access-video-collection-project-hernesniemi-s-1001-and-more-microsurgical-videos-of-neurosurgery-a-legacy-for-educational-purposes
#6
Joham Choque-Velasquez, Danil A Kozyrev, Roberto Colasanti, Peeraphong Thiarawat, Patcharin Intarakhao, Behnam Rezai Jahromi, Juha Hernesniemi
BACKGROUND: Neurosurgical educational programs and courses are helpful to improve the quality of training. Moreover, nowadays, online activities may represent a very useful tool to globally enhance neurosurgical education. The "Hernesniemi's 1001 and more microneurosurgical videos" project aims to show the microsurgical style developed by the senior author and his TEAMs in more than 40 years of experience. METHODS: More than 1100 high-definition videos of microneurosurgical operations performed by the senior author were carefully edited...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28862552/cavernous-sinus-compartments-from-the-endoscopic-endonasal-approach-anatomical-considerations-and-surgical-relevance-to-adenoma-surgery
#7
Juan C Fernandez-Miranda, Nathan T Zwagerman, Kumar Abhinav, Stefan Lieber, Eric W Wang, Carl H Snyderman, Paul A Gardner
OBJECTIVE Tumors with cavernous sinus (CS) invasion represent a neurosurgical challenge. Increasing application of the endoscopic endonasal approach (EEA) requires a thorough understanding of the CS anatomy from an endonasal perspective. In this study, the authors aimed to develop a surgical anatomy-based classification of the CS and establish its utility for preoperative surgical planning and intraoperative guidance in adenoma surgery. METHODS Twenty-five colored silicon-injected human head specimens were used for endonasal and transcranial dissections of the CS...
September 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28810347/-history-of-world-neurosurgery
#8
X Wang
In 5000 BC, South American tribes digged the bones in the living head to seek ways to communicate with the gods, which was primitive trephination and may be the first neurosurgical behavior. In 2600 BC, Imhotep in ancient Egypt took the brain out of the head from the nose, for a better preserve of the mummy, which was a prototype of modern transsphenoidal surgery. And the development of anatomy in ancient Greek laid a solid foundation for neurosurgery. From 500 to 1500 AD, the rise of religion and the occurrence of war, prompted a large number of craniocerebral trauma, which contributed greatly to the early development of neurosurgery as a distinct specialty...
May 28, 2017: Zhonghua Yi Shi za Zhi, Chinese Journal of Medical History
https://www.readbyqxmd.com/read/28783226/case-study-of-berengario-da-carpi-and-lorenzo-de-medici
#9
D Lippi
Jacopo Berengario da Carpi (c.1460-c.1530) made several important advances in anatomy, being universally considered the founder of 'animated anatomy' (anatomia animata). In addition to being a famous anatomist, Berengario was also a highly regarded surgeon. One of his famous clients was Lorenzo de' Medici, Duke of Urbino (1492-1519). In 1517, Lorenzo suffered a skull injury from an harquebus shot and Berengario was asked to come to his bedside. Lorenzo's case gave Berengario the opportunity to write his Tractatus de Fractura Calve sive Cranei, published in Bologna by Gerolamo Benedetti in 1518...
September 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28719087/mri-guided-stereotactic-neurosurgical-procedures-in-a-diagnostic-mri-suite-background-and-safe-practice-recommendations
#10
Paul S Larson, Jon T Willie, Sudhakar Vadivelu, Hooman Azmi-Ghadimi, Amy Nichols, Loretta Litz Fauerbach, Helen Boehm Johnson, Denise Graham
The development of navigation technology facilitating MRI-guided stereotactic neurosurgery has enabled neurosurgeons to perform a variety of procedures ranging from deep brain stimulation to laser ablation entirely within an intraoperative or diagnostic MRI suite while having real-time visualization of brain anatomy. Prior to this technology, some of these procedures required multisite workflow patterns that presented significant risk to the patient during transport. For those facilities with access to this technology, safe practice guidelines exist only for procedures performed within an intraoperative MRI...
July 2017: Journal of Healthcare Risk Management: the Journal of the American Society for Healthcare Risk Management
https://www.readbyqxmd.com/read/28712994/recognition-of-white-matter-bundles-using-local-and-global-streamline-based-registration-and-clustering
#11
REVIEW
Eleftherios Garyfallidis, Marc-Alexandre Côté, Francois Rheault, Jasmeen Sidhu, Janice Hau, Laurent Petit, David Fortin, Stephen Cunanne, Maxime Descoteaux
Virtual dissection of diffusion MRI tractograms is cumbersome and needs extensive knowledge of white matter anatomy. This virtual dissection often requires several inclusion and exclusion regions-of-interest that make it a process that is very hard to reproduce across experts. Having automated tools that can extract white matter bundles for tract-based studies of large numbers of people is of great interest for neuroscience and neurosurgical planning. The purpose of our proposed method, named RecoBundles, is to segment white matter bundles and make virtual dissection easier to perform...
July 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28705703/a-technique-for-resecting-occipital-pole-gliomas-using-a-keyhole-lobectomy
#12
Andrew K Conner, Cordell M Baker, Robert G Briggs, Joshua D Burks, Chad A Glenn, Adam D Smitherman, Jake P Morgan, Nathan A Pittman, Michael E Sughrue
OBJECTIVE: Our purpose is to describe a method of resecting occipital pole gliomas through a keyhole lobectomy and share the patient outcomes of this technique. METHODS: We performed a retrospective review of data obtained on all patients who underwent resection of occipital pole gliomas by the senior author between 2012 and 2016. We describe our technique for resecting these tumors utilizing a keyhole lobectomy and share the patient outcomes of this operation. RESULTS: Eight patients were included in this study...
July 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28681754/microsurgical-anatomy-of-the-superior-sagittal-sinus-and-draining-veins
#13
Mariano Anto Bruno-Mascarenhas, Vengalathur G Ramesh, Sundar Venkatraman, Jolarpettai V Mahendran, S Sundaram
BACKGROUND: The superior sagittal sinus and the draining cerebral veins are often encountered during the surgery for parasagittal and falx meningiomas and during the interhemisperic transcallosal approaches. A knowledge about the variations from the normally described anatomy helps in anticipating and avoiding problems related to these structures during surgery. AIM: The normal variations in the disposition of the superior sagittal sinus and the number and direction of the draining veins in the Indian population have been studied...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28506483/cortical-and-subcortical-functional-neuroanatomy-for-low-grade-glioma-surgery
#14
REVIEW
L Chenin, M Lefranc, S Velut, P Foulon, E Havet, J Peltier
Knowledge of the encephalon anatomy is crucial for neurosurgical practice, especially the main cortical functional structures and their connections. General organisation of the encephalon is presented with frontal, parietal, occipital, temporal, limbic and insular lobes and their Brodmann correspondence. Secondly, subcortical anatomy will be presented with main white matter fasciculi in three separated categories: association, commissural and projection fibers. Main association fibers are inferior occipitofrontal fasciculus, superior longitudinal fasciculus, arcuate fasciculus, inferior longitudinal fasciculus, uncinate fasciculus, and cingulum...
May 12, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28484528/extradural-anterior-clinoidectomy-technical-nuances-from-a-learner-s-perspective
#15
Shashwat Mishra, Baltazar Leão, Diego Mendez Rosito
BACKGROUND: Extradural removal of the anterior clinoid process (ACP) is a crucial step in the proper surgical exposure of various pathologies in and around the central skull base. Since the pioneering description by Dolenc, the technique of extradural clinoidectomy has undergone several refinements in the light of improved understanding of microsurgical anatomy and maturation of neurosurgical techniques. Mastery of the surgical nuances involved in performing this surgical exercise will allow the young neurosurgeon to execute this step without undue reluctance and trepidation...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28463617/robot-assisted-procedures-in-pediatric-neurosurgery
#16
Alessandro De Benedictis, Andrea Trezza, Andrea Carai, Elisabetta Genovese, Emidio Procaccini, Raffaella Messina, Franco Randi, Silvia Cossu, Giacomo Esposito, Paolo Palma, Paolina Amante, Michele Rizzi, Carlo Efisio Marras
OBJECTIVE During the last 3 decades, robotic technology has rapidly spread across several surgical fields due to the continuous evolution of its versatility, stability, dexterity, and haptic properties. Neurosurgery pioneered the development of robotics, with the aim of improving the quality of several procedures requiring a high degree of accuracy and safety. Moreover, robot-guided approaches are of special interest in pediatric patients, who often have altered anatomy and challenging relationships between the diseased and eloquent structures...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28451498/a-multicenter-review-of-superior-laryngeal-nerve-injury-following-anterior-cervical-spine-surgery
#17
Zachary J Tempel, Justin S Smith, Christopher Shaffrey, Paul M Arnold, Michael G Fehlings, Thomas E Mroz, K Daniel Riew, Adam S Kanter
STUDY DESIGN: A retrospective multicenter case-series study; case report and review of the literature. OBJECTIVE: The anatomy and function of the superior laryngeal nerve (SLN) are well described; however, the consequences of SLN injury remain variable and poorly defined. The prevalence of SLN injury as a consequence of cervical spine surgery is difficult to discern as its clinical manifestations are often inconstant and frequently of a subclinical degree. A multicenter study was performed to better delineate the risk factors, prevalence, and outcomes of SLN injury...
April 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28362934/three-dimensional-printed-modeling-of-diffuse-low-grade-gliomas-and-associated-white-matter-tract-anatomy
#18
Jayesh P Thawani, Nickpreet Singh, Jared M Pisapia, Kalil G Abdullah, Drew Parker, Bryan A Pukenas, Eric L Zager, Ragini Verma, Steven Brem
BACKGROUND: Diffuse low-grade gliomas (DLGGs) represent several pathological entities that infiltrate and invade cortical and subcortical structures in the brain. OBJECTIVE: To describe methods for rapid prototyping of DLGGs and surgically relevant anatomy. METHODS: Using high-definition imaging data and rapid prototyping technologies, we were able to generate 3 patient DLGGs to scale and represent the associated white matter tracts in 3 dimensions using advanced diffusion tensor imaging techniques...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28359922/first-application-of-7-t-magnetic-resonance-imaging-in-endoscopic-endonasal-surgery-of-skull-base-tumors
#19
Thomas F Barrett, Hadrien A Dyvorne, Francesco Padormo, Puneet S Pawha, Bradley N Delman, Raj K Shrivastava, Priti Balchandani
BACKGROUND: Successful endoscopic endonasal surgery for the resection of skull base tumors is reliant on preoperative imaging to delineate pathology from the surrounding anatomy. The increased signal-to-noise ratio afforded by 7-T MRI can be used to increase spatial and contrast resolution, which may lend itself to improved imaging of the skull base. In this study, we apply a 7-T imaging protocol to patients with skull base tumors and compare the images with clinical standard of care...
July 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28338438/learning-brain-aneurysm-microsurgical-skills-in-a-human-placenta-model-predictive-validity
#20
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
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