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https://www.readbyqxmd.com/read/28069539/quantification-of-local-geometric-distortion-in-structural-magnetic-resonance-images-application-to-ultra-high-fields
#1
Jonathan C Lau, Ali R Khan, Tony Y Zeng, Keith MacDougall, Andrew G Parrent, Terry M Peters
Ultra-high field magnetic resonance imaging (MRI) provides superior visualization of brain structures compared to lower fields, but images may be prone to severe geometric inhomogeneity. We propose to quantify local geometric distortion at ultra-high fields in in vivo datasets of human subjects scanned at both ultra-high field and lower fields. By using the displacement field derived from nonlinear image registration between images of the same subject, focal areas of spatial uncertainty are quantified. Through group and subject-specific analysis, we were able to identify regions systematically affected by geometric distortion at air-tissue interfaces prone to magnetic susceptibility, where the gradient coil non-linearity occurs in the occipital and suboccipital regions, as well as with distance from image isocenter...
January 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28069420/the-authors-herby-confirm-that-this-manuscript-has-neither-been-published-nor-submitted-to-any-other-journal-confocal-laser-endomicroscopy-in-neurosurgery-an-alternative-to-instantaneous-sections
#2
David Breuskin, Jacek Szczygielski, Steffi Urbschat, Yoo-Jin Kim, Joachim Oertel
INTRODUCTION: Intraoperative distinction of brain tumor from the surround brain is one of the crucial challenges in neurooncological surgery. In this study, confocal laser endomicroscope (CLE) findings were directly compared with intraoperative instantaneous sections by the neuropathologist in a blinded fashion. MATERIAL AND METHODS: The imaging device comprises of a rigid endoscope with Hopkins-Rod lenses and a red wave length laser with a scanning depth of 80 μm...
January 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28048837/mo-de-202-01-image-guided-focused-ultrasound-surgery-and-therapy
#3
K Farahani
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048186/mo-de-202-02-advances-in-image-registration-and-reconstruction-for-image-guided-neurosurgery
#4
J Siewerdsen
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047534/mo-de-202-03-image-guided-surgery-and-interventions-in-the-advanced-multimodality-image-guided-operating-amigo-suite
#5
T Kapur
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046879/mo-de-202-04-multimodality-image-guided-surgery-and-intervention-for-the-rest-of-us
#6
R Shekhar
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046773/mo-de-202-00-image-guided-interventions-advances-in-intraoperative-imaging-guidance-and-an-emerging-role-for-medical-physics-in-surgery
#7
Jeffrey Siewerdsen
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042588/review-of-the-potential-of-optical-technologies-for-cancer-diagnosis-in-neurosurgery-a-step-toward-intraoperative-neurophotonics
#8
REVIEW
Fartash Vasefi, Nicholas MacKinnon, Daniel L Farkas, Babak Kateb
Advances in image-guided therapy enable physicians to obtain real-time information on neurological disorders such as brain tumors to improve resection accuracy. Image guidance data include the location, size, shape, type, and extent of tumors. Recent technological advances in neurophotonic engineering have enabled the development of techniques for minimally invasive neurosurgery. Incorporation of these methods in intraoperative imaging decreases surgical procedure time and allows neurosurgeons to find remaining or hidden tumor or epileptic lesions...
January 2017: Neurophotonics
https://www.readbyqxmd.com/read/28036309/rapid-transmission-of-multidrug-resistant-corynebacterium-striatum-among-susceptible-patients-in-a-tertiary-hospital-in-china
#9
Junrui Wang, Yanyan Wang, Xiaoli Du, Jinghua Cui, Kai Wang, Lipeng Zhang, Yanqiu Han
INTRODUCTION: With increasing reports about Corynebacterium striatum, its potential pathogenicity and clinical significance are drawing more attention in recent years. METHODOLOGY: During a 14-month period, Corynebacterium striatum strains were routinely isolated in lower respiratory tract samples of the inpatients in a tertiary hospital in China, and the suspected isolates were identified with VITEK-2 ANC card and 16S rRNA sequencing technique, respectively. Pulsed-field gel electrophoresis (PFGE) was employed to discriminate different clones, and biofilm-producing abilities of different strains were compared...
December 30, 2016: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28027070/innovations-in-functional-neurosurgery-and-anesthetic-implications
#10
Lauren K Dunn, Marcel E Durieux, W Jeffrey Elias, Edward C Nemergut, Bhiken I Naik
Functional neurosurgery has undergone rapid growth over the last few years fueled by advances in imaging technology and novel treatment modalities. These advances have led to new surgical treatments using minimally invasive and precise techniques for conditions such as Parkinson's disease, essential tremor, epilepsy, and psychiatric disorders. Understanding the goals and technological issues of these procedures is imperative for the anesthesiologist to ensure safe management of patients presenting for functional neurosurgical procedures...
December 23, 2016: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28004631/national-perspectives-on-the-training-of-neurosurgery-residents-in-stereotactic-radiosurgery
#11
Alireza Mansouri, Christopher D Witiw, Jetan H Badhiwala, Farshad Nassiri, Patrick J McDonald, Abhaya V Kulkarni, Gelareh Zadeh, Douglas Kondziolka
Despite the critical role played by neurosurgeons in performing radiosurgery, neurosurgery residents in Canada have limited exposure to radiosurgery during their training. A survey of neurosurgery residents and faculty along with radiation oncology faculty was conducted to analyze perspectives regarding incorporating formal radiosurgery training into the neurosurgery residency curriculum Methods: An online survey platform was employed. Descriptive statistics were used to summarize center and respondent characteristics...
January 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28000040/a-monitor-for-cellular-oxygen-metabolism-comet-monitoring-tissue-oxygenation-at-the-mitochondrial-level
#12
Rinse Ubbink, Mark A Wefers Bettink, Rineke Janse, Floor A Harms, Tanja Johannes, F Michael Münker, Egbert G Mik
After introduction of the protoporphyrin IX-triplet state lifetime technique as a new method to measure mitochondrial oxygen tension in vivo, the development of a clinical monitor was started. This monitor is the "COMET", an acronym for Cellular Oxygen METabolism. The COMET is a non-invasive electrically powered optical device that allows measurements on the skin. The COMET is easy to transport, due to its lightweight and compact size. After 5-aminolevulinic acid application on the human skin, a biocompatible sensor enables detection of PpIX in the mitochondria...
December 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27989976/ultrasonography-monitoring-with-superb-microvascular-imaging-technique-in-brain-tumor-surgery
#13
Mami Ishikawa, Yasushi Ota, Mutsumi Nagai, Gen Kusaka, Yuichi Tanaka, Heiji Naritaka
BACKGROUND: Neuronavigation based on preoperative magnetic resonance imaging (MRI) has been developed as a useful tool to improve visibility of the surgical site in the operative field. Ultrasonography (US) monitoring has also been used as a reliable imaging technique, providing real-time information during neurosurgical operations. We combined the latest innovative imaging technique for detecting very low-flow components, Superb Microvascular Imaging (SMI), with US monitoring during brain tumor surgery...
October 27, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27981065/art-3-5d-an-algorithm-to-label-arteries-and-veins-from-three-dimensional-angiography
#14
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
#15
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
#16
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/27849340/intra-arterial-cetuximab-for-the-treatment-of-recurrent-unresectable-head-and-neck-squamous-cell-carcinoma-%C3%A2
#17
Tristan Tham, Timothy G White, Shamik Chakraborty, Rohan R Lall, Rafael Ortiz, David J Langer, Deborah Shatzkes, Christopher G Filippi, Dennis Kraus, John A Boockvar, Peter D Costantino
IMPORTANCE: Management of recurrent head and neck squamous cell carcinoma is a common and challenging clinical problem in head and neck oncology. OBJECTIVE: Here we present the first reported case of super-selective intra-arterial (SSIA) microcatheter based local delivery of cetuximab for head and neck cancer. This technical report describes the techniques used to deliver the SSIA dose of cetuximab, as well as the patient outcome. DESIGN: This technical report is part of an ongoing Phase I Clinical Trial...
November 2016: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/27836702/advancement-of-surgical-visualization-methods-a-comparison-study-between-traditional-microscopic-surgery-and-a-novel-robotic-optoelectronic-visualization-tool-for-spinal-surgery
#18
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 operative microscope 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 operating microscope and exoscope. Three attending spine surgeons blinded for the visualization technique used then reviewed and graded each decompression...
November 8, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27813463/bypass-surgery-for-complex-middle-cerebral-artery-aneurysms-an-algorithmic-approach-to-revascularization
#19
Ali Tayebi Meybodi, Wendy Huang, Arnau Benet, Olivia Kola, Michael T Lawton
OBJECT Management of complex aneurysms of the middle cerebral artery (MCA) can be challenging. Lesions not amenable to endovascular techniques or direct clipping might require a bypass procedure with aneurysm obliteration. Various bypass techniques are available, but an algorithmic approach to classifying these lesions and determining the optimal bypass strategy has not been developed. The objective of this study was to propose a comprehensive and flexible algorithm based on MCA aneurysm location for selecting the best of multiple bypass options...
November 4, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27809900/significance-of-nucleic-acid-testing-in-diagnosis-and-treatment-of-post-neurosurgical-meningitis-caused-by-multidrug-resistant-acinetobacter-baumannii-a-case-report
#20
Ngo Tat Trung, Trinh Van Son, Dao Thanh Quyen, Dang Thi Viet Anh, Vu Viet Sang, Nguyen Xuan Lam, Nguyen Dang Manh, Vuong Phuc Duong, Bui Tri Cuong, Quyen Dang Tuyen, Nguyen Xuan Chinh, Phan Quoc Hoan, Hoang Van Tong, Christian G Meyer, Le Huu Song
BACKGROUND: Neurosurgery may pose the risk of patients' developing nosocomial meningitis caused by infection with hospital pathogens. Rapid detection of the causative pathogens is essential for selecting the appropriate antibiotic treatment. However, the classical culture-based detection of bacterial infection is time-consuming and often fails to establish the correct diagnosis. Molecular techniques offer improved diagnostic means to guide the proper antibiotic therapy. CASE PRESENTATION: A 32-year-old Vietnamese man underwent neurosurgery and subsequently developed meningitis...
November 3, 2016: Journal of Medical Case Reports
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