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Electromagnetic Navigation

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https://www.readbyqxmd.com/read/28410635/severe-chronic-obstructive-pulmonary-disease-is-not-associated-with-complications-after-navigational-bronchoscopy-procedures
#1
Christopher W Towe, Vanessa P Ho, Jordan Kazakov, Terence Jackson, Yaron Perry, Luis M Argote-Greene, Jennifer P Ginsberg, Philip A Linden
BACKGROUND: Electromagnetic navigational bronchoscopy (ENB) is a commonly used technique to obtain biopsies of peripheral pulmonary lesions. Little is known about risk factors for complications with this procedure. The aim of this study was to assess the complication rate associated with ENB and the relationship of complications to patient- and procedure-related factors. METHODS: Consecutive ENB procedures at an academic medical center between May 11, 2011, and September 11, 2015, were reviewed retrospectively...
April 12, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28399830/electromagnetic-navigation-bronchoscopy-to-access-lung-lesions-in-1-000-subjects-first-results-of-the-prospective-multicenter-navigate-study
#2
Sandeep J Khandhar, Mark R Bowling, Javier Flandes, Thomas R Gildea, Kristin L Hood, William S Krimsky, Douglas J Minnich, Septimiu D Murgu, Michael Pritchett, Eric M Toloza, Momen M Wahidi, Jennifer J Wolvers, Erik E Folch
BACKGROUND: Electromagnetic navigation bronchoscopy (ENB) is an image-guided, minimally invasive approach that uses a flexible catheter to access pulmonary lesions. METHODS: NAVIGATE is a prospective, multicenter study of the superDimension™ navigation system. A prespecified 1-month interim analysis of the first 1,000 primary cohort subjects enrolled at 29 sites in the United States and Europe is described. Enrollment and 24-month follow-up are ongoing. RESULTS: ENB index procedures were conducted for lung lesion biopsy (n = 964), fiducial marker placement (n = 210), pleural dye marking (n = 17), and/or lymph node biopsy (n = 334; primarily endobronchial ultrasound-guided)...
April 11, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28377202/ureteroscopy-assisted-percutaneous-kidney-access-made-easy-first-clinical-experience-with-a-novel-navigation-system-using-electromagnetic-guidance-ideal-stage-1
#3
Estevao Lima, Pedro L Rodrigues, Paulo Mota, Nuno Carvalho, Emanuel Dias, Jorge Correia-Pinto, Riccardo Autorino, João L Vilaça
BACKGROUND: Puncture of the renal collecting system represents a challenging step in percutaneous nephrolithotomy (PCNL). Limitations related to the use of standard fluoroscopic-based and ultrasound-based maneuvers have been recognized. OBJECTIVES: To describe the technique and early clinical outcomes of a novel navigation system for percutaneous kidney access. DESIGN, SETTING, AND PARTICIPANTS: This was a proof-of-concept study (IDEAL phase 1) conducted at a single academic center...
April 1, 2017: European Urology
https://www.readbyqxmd.com/read/28362578/automated-catheter-navigation-with-electromagnetic-image-guidance
#4
Herman Alexander Jaeger, Pietro Nardelli, Conor O'Shea, Josef Tugwell, Kashif A Khan, Timothy Power, Michael O'Shea, Marcus P Kennedy, Padraig Cantillon-Murphy
This paper describes a novel method of controlling an endoscopic catheter using an automated catheter tensioning system with the objective of providing clinicians with improved manipulation capabilities within the patient. Catheters are used in many clinical procedures to provide access to the cardiopulmonary system. Control of such catheters is performed manually by the clinicians using a handle, typically actuating a single or opposing set of pull-wires. Such catheters are generally actuated in a single plane, requiring the clinician to rotate the catheter handle to navigate the system...
March 2, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28357627/anser-emt-the-first-open-source-electromagnetic-tracking-platform-for-image-guided-interventions
#5
Herman Alexander Jaeger, Alfred Michael Franz, Kilian O'Donoghue, Alexander Seitel, Fabian Trauzettel, Lena Maier-Hein, Pádraig Cantillon-Murphy
PURPOSE: Electromagnetic tracking is the gold standard for instrument tracking and navigation in the clinical setting without line of sight. Whilst clinical platforms exist for interventional bronchoscopy and neurosurgical navigation, the limited flexibility and high costs of electromagnetic tracking (EMT) systems for research investigations mitigate against a better understanding of the technology's characterisation and limitations. The Anser project provides an open-source implementation for EMT with particular application to image-guided interventions...
March 29, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28332159/electromagnetically-tracked-personalized-templates-for-surgical-navigation
#6
Andrew W L Dickinson, Michelle L Zec, David R Pichora, Brian J Rasquinha, Randy E Ellis
PURPOSE: An electromagnetic (EM) surgical tracking system was developed for orthopedic navigation. The reportedly poor accuracy of point-based EM navigation was improved by using anatomical impressions, which were EM-tracked personalized templates. Lines, rather than points, were consistently used for calibration and error evaluation. METHODS: Technical accuracy was tested using models derived from CT scans of ten cadaver shoulders. Tracked impressions were first designed, calibrated, and tested using lines as fiducial objects...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28332158/first-clinical-use-of-the-echotrack-guidance-approach-for-radiofrequency-ablation-of-thyroid-gland-nodules
#7
Alfred Michael Franz, Alexander Seitel, Nasrin Bopp, Christian Erbelding, Dominique Cheray, Stefan Delorme, Frank Grünwald, Hüdayi Korkusuz, Lena Maier-Hein
PURPOSE: Percutaneous radiofrequency ablation (RFA) of thyroid nodules is an alternative to surgical resection that offers the benefits of minimal scars for the patient, lower complication rates, and shorter treatment times. Ultrasound (US) is the preferred modality for guiding these procedures. The needle is usually kept within the US scanning plane to ensure needle visibility. However, this restricts flexibility in both transducer and needle movement and renders the procedure difficult, especially for inexperienced users...
March 22, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28331778/identification-of-scintillation-signatures-on-gps-signals-originating-from-plasma-structures-detected-with-eiscat-incoherent-scatter-radar-along-the-same-line-of-sight
#8
Biagio Forte, Chris Coleman, Susan Skone, Ingemar Häggström, Cathryn Mitchell, Federico Da Dalt, Tommaso Panicciari, Joe Kinrade, Gary Bust
Ionospheric scintillation originates from the scattering of electromagnetic waves through spatial gradients in the plasma density distribution, drifting across a given propagation direction. Ionospheric scintillation represents a disruptive manifestation of adverse space weather conditions through degradation of the reliability and continuity of satellite telecommunication and navigation systems and services (e.g., European Geostationary Navigation Overlay Service, EGNOS). The purpose of the experiment presented here was to determine the contribution of auroral ionization structures to GPS scintillation...
January 2017: Journal of Geophysical Research. Space Physics
https://www.readbyqxmd.com/read/28318915/computer-assisted-positioning-of-the-proximal-segment-after-sagittal-split-osteotomy-of-the-mandible-preclinical-investigation-of-a-novel-electromagnetic-navigation-system
#9
Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jürgen Hoffmann, Hartmut Dickhaus
INTRODUCTION: Modifications of the temporomandibular joint position after mandible osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. MATERIAL AND METHODS: High oblique sagittal split osteotomies were performed on 6 plastic skull mandibles in a laboratory under conditions comparable to the operating theatre...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28314525/intraoperative-electromagnetic-navigational-bronchoscopic-localization-of-small-deep-or-subsolid-pulmonary-nodules
#10
Abbas Abbas, Sagar Kadakia, Vishnu Ambur, Kimberly Muro, Larry Kaiser
BACKGROUND: Localizing small or deep pulmonary nodules or subsolid ground-glass opacities often is difficult during video-assisted thoracoscopic surgery (VATS) or robotic-assisted thoracoscopic surgery (RATS). This can result in larger resections or conversion to thoracotomy. The goal of this study is to evaluate the role of electromagnetic navigational bronchoscopic localization (ENBL) as a safe and accurate intraoperative method to localize small, deep, or subsolid nodules. METHODS: This is a single-institution, single-surgeon retrospective study of all patients (51) who underwent combined ENBL and resection of 54 nodules between May 2013 and August 2015...
February 7, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28296957/computer-assisted-electromagnetic-navigation-improves-accuracy-in-computed-tomography-guided-interventions-a-prospective-randomized-clinical-trial
#11
Pierre Durand, Alexandre Moreau-Gaudry, Anne-Sophie Silvent, Julien Frandon, Emilie Chipon, Maud Médici, Ivan Bricault
PURPOSE: To assess the accuracy and usability of an electromagnetic navigation system designed to assist Computed Tomography (CT) guided interventions. MATERIALS AND METHODS: 120 patients requiring a percutaneous CT intervention (drainage, biopsy, tumor ablation, infiltration, sympathicolysis) were included in this prospective randomized trial. Nineteen radiologists participated. Conventional procedures (CT group) were compared with procedures assisted by a navigation system prototype using an electromagnetic localizer to track the position and orientation of a needle holder (NAV group)...
2017: PloS One
https://www.readbyqxmd.com/read/28271358/ultrasound-navigated-radiofrequency-ablation-of-thyroid-nodules-with-integrated-electromagnetic-tracking-comparison-with-conventional-ultrasound-guidance-in-gelatin-models
#12
Christian Erbelding, Alfred Franz, Alexander Seitel, Nasrin Bopp, Konstantin Kohlhase, Frank Grünwald, Lena Maier-Hein
PURPOSE: A thyroid-like gelatin model was used to determine potential superiority of a new navigation system for ultrasound (US)-guided electrode insertion called EchoTrack, featuring a US probe with an integrated electromagnetic field generator, in comparison with conventional US when performing radiofrequency ablation. METHODS: In order to compare 20 navigated ablations with 20 ablations under conventional US guidance, a thyroid-like gelatin model was used. In each group, 10 in-plane and 10 out-of-plane punctures were performed...
March 7, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28254399/use-of-an-electromagnetic-navigation-system-on-a-phantom-as-a-training-simulator-for%C3%A2-ct-guided-procedures
#13
Yadiel Sánchez, Dmitry S Trifanov, Taj M Kattapuram, Haiyang Tao, Anand M Prabhakar, Ronald S Arellano, Raul N Uppot
No abstract text is available yet for this article.
February 26, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28248592/reply-same-day-computed-tomographic-chest-imaging-for-pulmonary-nodule-targeting-with-electromagnetic-navigation-bronchoscopy-will-it-prevent-unnecessary-procedures
#14
Roy Semaan, Lonny Yarmus
No abstract text is available yet for this article.
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28248587/same-day-computed-tomographic-chest-imaging-for-pulmonary-nodule-targeting-with-electromagnetic-navigation-bronchoscopy-will-it-prevent-unnecessary-procedures
#15
Abhishek Kumar, Kassem Harris
No abstract text is available yet for this article.
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28221151/-techniques-for-percutaneous-access-during-percutaneous-nephrolithotomy
#16
Daniel Pérez-Fentes
The creation of the access is one of the main steps in percutaneous nephrolithotomy, the most complicated for many urologists and the one that limited most the universalization of the technique. From a purely technical point of view, it includes puncture of the excretory tract and dilatation of the percutaneous tract to end with the introduction of an Amplatz type working sheath. The objective of the puncture is to try to access the excretory system through the renal papilla, minimizing the risk of bleeding...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28217826/in-vivo-comparison-of-two-navigation-systems-for-abdominal-percutaneous-needle-intervention
#17
Deqiang Xiao, Yong Li, Huoling Luo, Yanfang Zhang, Xuejun Guo, Huimin Zheng, Qingmao Hu, Fucang Jia
PURPOSE: To compare the accuracy of a Kinect-Optical navigation system with an electromagnetic (EM) navigation system for percutaneous liver needle intervention. MATERIALS AND METHODS: Five beagles with nine artificial tumors were used for validation. The Veran IG4 EM navigation system and a custom-made Kinect-Optical navigation system were used. Needle insertions into each tumor were conducted with these two guidance methods. The target positioning error (TPE) and the time cost of the puncture procedures were evaluated...
February 20, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28206930/using-electromagnetic-navigation-bronchoscopy-and-dye-injection-to-aid-in-video-assisted-lung-resection
#18
Jordan Brown, Thomas J Lee, Theresa Joiner, William Wrightson
Small (2 cm) peripheral lung lesions and ground glass opacities remain a difficult subset of lung lesions for the diagnosis and management of lung cancer. Surgical biopsy is more difficult for these lesions because intraoperative localization has to be made without the aid of direct visualization or manual palpation. Electromagnetic navigation bronchoscopy can be used in the operating room to identify a small peripheral lesion and marked using an injection of methylene blue, which can be seen on the visceral pleura of the lung...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28182758/a-multimodal-image-guiding-system-for-navigated-ultrasound-bronchoscopy-ebus-a-human-feasibility-study
#19
Hanne Sorger, Erlend Fagertun Hofstad, Tore Amundsen, Thomas Langø, Janne Beate Lervik Bakeng, Håkon Olav Leira
BACKGROUND: Endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA) is the endoscopic method of choice for confirming lung cancer metastasis to mediastinal lymph nodes. Precision is crucial for correct staging and clinical decision-making. Navigation and multimodal imaging can potentially improve EBUS-TBNA efficiency. AIMS: To demonstrate the feasibility of a multimodal image guiding system using electromagnetic navigation for ultrasound bronchoschopy in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28177181/radial-endobronchial-ultrasound-for-the-diagnosis-of-peripheral-pulmonary-lesions-a-systematic-review-and-meta-analysis
#20
REVIEW
Muhammad S Ali, William Trick, Benjamin I Mba, Divyanshu Mohananey, Jaskaran Sethi, Ali I Musani
Tissue diagnosis of peripheral pulmonary lesions (PPLs) can be challenging. In the past, flexible bronchoscopy was commonly performed for this purpose but its diagnostic yield is suboptimal. This has led to the development of new bronchoscopic modalities such as radial endobronchial ultrasound (R-EBUS), electromagnetic navigation bronchoscopy (ENB) and virtual bronchoscopy (VB). We performed this meta-analysis using data from previously published R-EBUS studies, to determine its diagnostic yield and other performance characteristics...
April 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
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