keyword
https://read.qxmd.com/read/38471528/virtual-reality-planning-of-microvascular-decompression-in-trigeminal-neuralgia-technique-and-clinical-outcome
#1
JOURNAL ARTICLE
Oliver Dietmar Fabrig, Carlo Serra, Ralf Alfons Kockro
BACKGROUND:  A neurovascular conflict (NVC) is considered the cause of trigeminal neuralgia (TN) in 75% of cases, and if so, a microvascular decompression (MVD) can lead to significant pain relief. A reliable preoperative detection of NVC is essential for clinical decision-making and surgical planning, making detailed neuroradiologic imaging an important component. We present our experiences and clinical outcomes with preoperative planning of the MVD procedure in a virtual reality (VR) environment, based on magnetic resonance imaging (MRI) including magnetic resonance angiography (MRA) and magnetic resonance venography (MRV) sequences...
March 12, 2024: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://read.qxmd.com/read/38469904/measuring-csf-shunt-flow-with-mri-using-flow-enhancement-of-signal-intensity-fensi
#2
JOURNAL ARTICLE
Mingxiao Zhang, William C Olivero, Jason M Huston, Suguna Pappu, Paul M Arnold, Arundhati Biswas, Aaron T Anderson, Bradley P Sutton
PURPOSE: To develop and validate a noninvasive imaging technique for accurately assessing very slow CSF flow within shunt tubes in pediatric patients with hydrocephalus, aiming to identify obstructions that might impede CSF drainage. THEORY AND METHODS: A simulation of shunt flow enhancement of signal intensity (shunt-FENSI) signal is used to establish the relationship between signal change and flow rate. The quantification of flow enhancement of signal intensity data involves normalization, curve fitting, and calibration to match simulated data...
March 12, 2024: Magnetic Resonance in Medicine
https://read.qxmd.com/read/38468658/successful-use-of-a-patient-specific-3d-printed-biomodel-as-surgical-guide-for-excision-of-juvenile-nasopharyngeal-angiofibroma-extending-to-skull-base-a-case-report
#3
Fahad Zahid, Ayesha Memon, Moghira Siddiqui, Muhammad Hammad Deewani, Osama Asif, Amin Javer, Ahsan Ali Khan
BACKGROUND: 3-Dimensional (3D) printing has proven its role in various fields. Recently, 3D printing has also been introduced in the otolaryngology domain. The nasopharynx, paranasal sinuses, and the anterior skull base have a complex anatomy. Critical structures must be delicately protected and preserved during a surgical procedure. It is, therefore, very important for the surgeon to have an excellent spatial understanding of the complex surgical field that is being traversed. CASE DESCRIPTION: Our case is of a 19-year-old male with a 2-month history of recurrent epistaxis, nasal blockage, and headache...
2024: Surgical Neurology International
https://read.qxmd.com/read/38464665/latex-vascular-injection-as-method-for-enhanced-neurosurgical-training-and-skills
#4
JOURNAL ARTICLE
Julio C Pérez-Cruz, Mario A Macías-Duvignau, Gervith Reyes-Soto, Oscar O Gasca-González, Matias Baldoncini, Franklin Miranda-Solís, Luis Delgado-Reyes, Carlos Ovalles, Carlos Catillo-Rangel, Evgeniy Goncharov, Renat Nurmukhametov, Michael T Lawton, Nicola Montemurro, Manuel De Jesus Encarnacion Ramirez
BACKGROUND: Tridimensional medical knowledge of human anatomy is a key step in the undergraduate and postgraduate medical education, especially in surgical fields. Training simulation before real surgical procedures is necessary to develop clinical competences and to minimize surgical complications. METHODS: Latex injection of vascular system in brain and in head-neck segment is made after washing out of the vascular system and fixation of the specimen before and after latex injection...
2024: Frontiers in Surgery
https://read.qxmd.com/read/38463412/using-virtual-reality-for-perioperative-nursing-education-in-complex-neurosurgical-surgeries-a-feasibility-and-acceptance-study
#5
JOURNAL ARTICLE
Linda Nguyen, Martina Bordini, Clyde Matava
Background Operating room (OR) nurses' training for surgical fields such as neurosurgery is often inconsistent and overly lengthy due to the lack of consistently scheduled procedures and the nature of procedures being for the most part emergencies. Virtual reality (VR) simulation has been explored for nurses training in various contexts with positive results. Objectives To develop a VR simulation that could replicate a pediatric neurosurgery craniotomy procedure reflecting a real OR scenario and the surgical procedural sequence of a craniotomy; and to assess OR nurses' confidence in assisting craniotomy procedures as scrub nurses before and after the VR simulation...
March 2024: Curēus
https://read.qxmd.com/read/38456696/40-gray-in-5-fractions-for-salvage-reirradiation-of-spine-lesions-previously-treated-with-stereotactic-body-radiotherapy
#6
JOURNAL ARTICLE
Assaf Moore, Zhigang Zhang, Teng Fei, Lei Zhang, Laura Accomando, Adam M Schmitt, Daniel S Higginson, Boris A Mueller, Melissa Zinovoy, Daphna Y Gelblum, Divya Yerramilli, Amy J Xu, Victoria S Brennan, David M Guttmann, Craig E Grossman, Laura L Dover, Narek Shaverdian, Luke R G Pike, John J Cuaron, Alexandra Dreyfuss, Eric Lis, Ori Barzilai, Mark H Bilsky, Yoshiya Yamada
BACKGROUND AND PURPOSE: A retrospective single-center analysis of the safety and efficacy of reirradiation to 40 Gy in 5 fractions (reSBRT) in patients previously treated with stereotactic body radiotherapy to the spine was performed. METHODS: We identified 102 consecutive patients treated with reSBRT for 105 lesions between 3/2013 and 8/2021. Sixty-three patients (61.8%) were treated to the same vertebral level, and 39 (38.2%) to overlapping immediately adjacent levels...
March 8, 2024: Neurosurgery
https://read.qxmd.com/read/38444865/exploring-the-neurosurgery-training-landscape-in-pakistan-a-trainee-s-perspective-in-resource-limited-settings
#7
JOURNAL ARTICLE
Muhammad Shakir, Hammad Atif Irshad, Aly Hamza Khowaja, Ahmed Altaf, Syed Ather Enam
BACKGROUND: Shortage of neurosurgeons in Pakistan, one per 720,000 people, stems from a lack of trainees. Therefore, it is vital to assess the training experience, career opportunities, and satisfaction levels of neurosurgical trainees in Pakistan. METHODS: A nationwide survey was conducted, covering 22 CPSP-accredited neurosurgery training programs in Pakistan. Convenience sampling was utilized with a pilot tested questionnaire and responses were analyzed using STATA 15...
April 2024: World neurosurgery: X
https://read.qxmd.com/read/38395058/perforator-dissection-porcine-abdominal-model-a-novel-simulator-to-improve-microsurgical-training
#8
JOURNAL ARTICLE
Ellen C Shaffrey, Weifeng Zeng, Peter J Nicksic, Sahand C Eftekari, Jennifer M Frank, Aaron M Dingle, Samuel O Poore
BACKGROUND:  Perforator dissection and flap elevation are routinely performed for microsurgical reconstruction; however, there is a steep learning curve to mastering these technical skills. Though live porcine models have been utilized as microsurgical training models, significant drawbacks limit their use. We recently developed a latex-perfused, nonliving, porcine abdomen perforator dissection simulation and described its anatomic similarity to the human deep inferior epigastric artery flap...
February 23, 2024: Journal of Reconstructive Microsurgery
https://read.qxmd.com/read/38393660/neuroign-explainable-multimodal-image-guided-system-for-precise-brain-tumor-surgery
#9
JOURNAL ARTICLE
Ramy A Zeineldin, Mohamed E Karar, Oliver Burgert, Franziska Mathis-Ullrich
Precise neurosurgical guidance is critical for successful brain surgeries and plays a vital role in all phases of image-guided neurosurgery (IGN). Neuronavigation software enables real-time tracking of surgical tools, ensuring their presentation with high precision in relation to a virtual patient model. Therefore, this work focuses on the development of a novel multimodal IGN system, leveraging deep learning and explainable AI to enhance brain tumor surgery outcomes. The study establishes the clinical and technical requirements of the system for brain tumor surgeries...
February 23, 2024: Journal of Medical Systems
https://read.qxmd.com/read/38382963/computerised-modified-paramedian-approach-technique-versus-conventional-midline-approach-technique-of-lumbar-puncture-a-randomised-control-trial-protocol
#10
JOURNAL ARTICLE
Yuan-Dong Zhuang, Yi-Ze Chen, Qi-Ying Lin, Yi-Xin Chen, Si-Qi Zhong, Ding Lei, Chun-Mei Chen
INTRODUCTION: The lumbar puncture (LP) technique is widely used for diagnostic and therapeutic purposes. In recent years, the paramedian approach technique (PAT) has gained increasing interest due to its advantages over the conventional midline approach technique (MAT) that has been traditionally employed in clinical practice for LP. However, there have been inconsistent discussions regarding the efficacy of different LP techniques. Based on digital virtual human and computer simulation techniques, a new approach called computerised modified PAT (CMPAT) was proposed...
February 20, 2024: BMJ Open
https://read.qxmd.com/read/38364226/are-insufficient-corrections-a-major-factor-in-distal-junctional-kyphosis-a-simulated-analysis-of-cervical-deformity-correction-using-in-construct-measurements
#11
JOURNAL ARTICLE
Fares Ani, Ethan Sissman, Dainn Woo, Alex Soroceanu, Gregory Mundis, Robert K Eastlack, Justin S Smith, D Kojo Hamilton, Han Jo Kim, Alan H Daniels, Eric O Klineberg, Brian Neuman, Daniel M Sciubba, Munish C Gupta, Khaled M Kebaish, Peter G Passias, Robert A Hart, Shay Bess, Christopher I Shaffrey, Frank J Schwab, Virginie Lafage, Christopher P Ames, Themistocles S Protopsaltis
OBJECTIVE: The present study utilized recently developed in-construct measurements in simulations of cervical deformity surgery in order to assess undercorrection and predict distal junctional kyphosis (DJK). METHODS: A retrospective review of a database of operative cervical deformity patients was analyzed for severe DJK and mild DJK. C2-lower instrumented vertebra (LIV) sagittal angle (SA) was measured postoperatively, and the correction was simulated in the preoperative radiograph in order to match the C2-LIV by using the planning software...
February 16, 2024: Journal of Neurosurgery. Spine
https://read.qxmd.com/read/38361082/a-comparison-of-brain-retraction-mechanisms-using-finite-element-analysis-and-the-effects-of-regionally-heterogeneous-material-properties
#12
JOURNAL ARTICLE
Emma Griffiths, Jayaratnam Jayamohan, Silvia Budday
Finite element (FE) simulations of the brain undergoing neurosurgical procedures present us with the great opportunity to better investigate, understand, and optimize surgical techniques and equipment. FE models provide access to data such as the stress levels within the brain that would otherwise be inaccessible with the current medical technology. Brain retraction is often a dangerous but necessary part of neurosurgery, and current research focuses on minimizing trauma during the procedure. In this work, we present a simulation-based comparison of different types of retraction mechanisms...
February 15, 2024: Biomechanics and Modeling in Mechanobiology
https://read.qxmd.com/read/38360209/impact-of-sacroiliac-interosseous-ligament-tension-and-laxity-on-the-biomechanics-of-the-lumbar-spine-a-finite-element-study
#13
JOURNAL ARTICLE
Shi-Hong Yu, Rui-Chun Dong, Zhong Liu, Hong Liu, Yi-Tang Liu, Sheng-Jie Tang
OBJECTIVE: To investigate the influence of sacroiliac interosseous ligament tension and laxity on the biomechanics of the lumbar spine. METHODS: A static analysis of a three-dimensional finite element model of the Lumbar-Pelvic (L3-P) is conducted to verify the model's effectiveness. Adjusting the sacroiliac ligament's elasticity modulus under a 10Nm lumbar flexion/extension moment, it simulates ligament tension/laxity to calculate vertebrae displacements, intervertebral disc stress and deformation, nucleus pulposus pressure, facet joint force, and ligament stress...
February 13, 2024: World Neurosurgery
https://read.qxmd.com/read/38356352/a-circulating-cadaveric-simulation-model-for-neurosurgery-residents
#14
JOURNAL ARTICLE
César Lafont, Cyrille Decante, Edouard Samarut, Céline Salaud
No abstract text is available yet for this article.
February 14, 2024: Medical Education
https://read.qxmd.com/read/38350174/effect-of-vascular-geometry-on-haemodynamic-changes-in-a-carotid-artery-bifurcation-using-numerical-simulation
#15
JOURNAL ARTICLE
H N Abhilash, Yoshiki Yanagita, Raghuvir Pai, Mohammad Zuber, Masaaki Tamagawa, Prakashini K, Ganesh Kamath S, Padmakumar R, A B V Barboza, V R K Rao, S M Abdul Khader
OBJECTIVES: The geometry of carotid bifurcation is a crucial contributing factor to the localization of atherosclerotic lesions. Currently, studies on carotid bifurcation geometry are limited to the region near to bifurcation. This study aimed to determine the influence of carotid bifurcation geometry on the blood flow using numerical simulations considering magnitude of haemodynamic parameters in the extended regions of carotid artery. METHODS: In the present study, haemodynamic analysis is carried out using the non-Newtonian viscosity model for patient-specific geometries consisting of both Left and Right carotid arteries...
February 2, 2024: Clinical Neurology and Neurosurgery
https://read.qxmd.com/read/38342178/the-sellar-region-as-seen-from-transcranial-and-endonasal-perspectives-exploring-bony-landmarks-through-new-surface-photorealistic-3d-models-reconstruction-for-neurosurgical-anatomy-training
#16
JOURNAL ARTICLE
Sergio Corvino, Amedeo Piazza, Toma Spiriev, Roberto Tafuto, Francesco Corrivetti, Domenico Solari, Luigi Maria Cavallo, Alberto Di Somma, Joaquim Enseñat, Matteo de Notaris, Giorgio Iaconetta
BACKGROUND: Virtual reality-based learning of neuroanatomy is a new feasible method to explore, visualize, and "dissect" interactively complex anatomical regions. We provide a new interactive photorealistic 3D-model of sellar region microsurgical anatomy which allows to explore side-by-side views of exocranial and endocranial surfaces with the aim of assisting young neurosurgery residents in learning microsurgical anatomy of this complex region. METHODS: Four head specimens underwent endoscopic endonasal approach extended to anterior and posterior skull base to expose main bony anatomical landmarks of sellar region...
February 9, 2024: World Neurosurgery
https://read.qxmd.com/read/38325703/anatomic-review-in-3d-augmented-reality-alters-craniotomy-planning-among-residents
#17
JOURNAL ARTICLE
Sameah Haider, Ellen Air, Zhifeng Kou, Jack Rock
OBJECTIVE: Objectively examine the effect of 3D-Augmented Reality anatomic review on craniotomy planning among neurosurgical residents as it pertains to craniotomy size, skull positioning, and knowledge of significant anatomic relationships. METHODS: PGY1-7 neurosurgery residents were instructed to review standard 2D radiographs, pin a skull, and tailor a craniotomy for 6 different lesions and case vignettes. Participants then reviewed the lesion in a 3D-AR environment, followed by repeating the craniotomy station for a variety of lesion types and locations (superficial, subcortical, deep, skull base)...
February 5, 2024: World Neurosurgery
https://read.qxmd.com/read/38320648/hemodynamic-study-of-cerebral-arteriovenous-malformation-newtonian-and-non-newtonian-blood-flow
#18
JOURNAL ARTICLE
M R Ganjkhanlou, A Shahidian, M R Shahmohammadi
OBJECTIVE: Arteriovenous malformation is a disease of the vascular system that occurs mainly in the cerebral arteries and spine. Numerical simulation as a powerful method is used to investigate the Cerebral Arteriovenous Malformation hemodynamic after occlusion of the abnormality step by step by embolization. METHODS: The CT Angiographic imaging data of two patients are used and a geometric model is extracted by the Mimics software. Numerical simulation of blood flow is performed in both Newtonian and non-Newtonian models...
February 4, 2024: World Neurosurgery
https://read.qxmd.com/read/38295399/thrombosed-posterior-inferior-cerebellar-artery-aneurysm-mimicking-a-medulla-oblongata-cavernous-malformation-2-dimensional-operative-video
#19
JOURNAL ARTICLE
Yücel Doğruel, Serdar Rahmanov, Abuzer Güngör, Uğur Türe
The incidence of posterior inferior cerebellar artery (PICA) aneurysms is estimated to be between 0.5% and 3% of total aneurysm cases.1 Most patients with these aneurysms typically present with subarachnoid hemorrhage, although there are instances in which patients may present with symptoms resulting from mass effect exerted on the brain stem or lower cranial nerves.1,2 Treatment options for PICA aneurysms include endovascular procedures, surgical clipping, or bypass techniques.2 Surgical treatment is considered more effective for partially thrombosed aneurysms compared with endovascular approaches...
January 30, 2024: Operative Neurosurgery (Hagerstown, Md.)
https://read.qxmd.com/read/38282461/a-pilot-initiative-to-enhance-quality-improvement-teaching-with-simulation
#20
JOURNAL ARTICLE
Mankeeran Dhanoa, Sachin Trivedi, Mark Sheridan
BACKGROUND: Quality Improvement and Patient Safety (QIPS) is a recognised competency across residency programmes. Although a variety of teaching modalities exist, many do not represent the multifaceted clinical environment that trainees work in. Residents have reported challenges in linking QIPS classroom-based learning with their clinical duties. High-fidelity simulation has been used to bridge this gap within clinical skills teaching and therefore has potential to address this issue in QIPS learning...
January 28, 2024: Clinical Teacher
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