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A novel method for accelerating the visualisation process used in virtual colonoscopy

M. Sharghi, I.W. Ricketts
Proceedings Fifth International Conference on Information Visualisation  
This paper presents a novel method to accelerate volume ray casting as used in virtual colonoscopy.  ...  The method exploits a pre-processing visibility technique to identify the potentially visible portions of the colon.  ...  Finally, our method has potential for wider use and is not limited to virtual colonoscopy or even virtual endoscopy.  ... 
doi:10.1109/iv.2001.942054 dblp:conf/iv/SharghiR01 fatcat:cdcyt4cewbgwpgbunmwlwgyehm

Virtual Colonoscopy - Technical Aspects [chapter]

Andrzej Skalski, Mirosaw Socha, Tomasz Zielinski, Mariusz Duplag
2011 Colonoscopy  
The colon after the segmentation process with a centreline, number of points N = 24 Visualisation The final step in the Virtual Colonoscopy is the data visualization.  ...  A novel approach to extract colon lumen from CT images for virtual colonoscopy. IEEE Transaction on Medical Imaging, Vol. 19, No. 12, (December 2000), pp. 1220-1226, ISSN 0278-0062.  ...  To publish a book on colonoscopy suitable for an international medical audience, drawing upon the expertise and talents of many outstanding world-wide clinicians, is a daunting task.  ... 
doi:10.5772/19329 fatcat:bpbrgukvizdiljnxzhmp5m6ize

Ct Data Processing And Visualization Aspects Of Virtual Colonoscopy

Andrzej Skalski, Miroslaw Socha, T.P. Zielinski, Mariusz Duplaga
2007 Zenodo  
Publication in the conference proceedings of EUSIPCO, Poznan, Poland, 2007  ...  In this paper we propose novel CT data processing methods which allow to generate the 3D model of a colon and its centreline used for virtual camera navigation.  ...  As we can see from figure 5, the centreline calculation method described in paragraph 2.3 ensures a wide view for virtual camera.  ... 
doi:10.5281/zenodo.40717 fatcat:nvbrst3vvzbyzp7dh63xdnuhyy

Proceedings Fifth International Conference on Information Visualisation

2001 Proceedings Fifth International Conference on Information Visualisation IV-01  
Moore vii A Novel Method for Accelerating the Visualisation Process Used in Virtual .....................................................................................................................  ...  Visualisation of a Simple Beam under a Load in Virtual Environment 589 S. Jankovic, L. Jankovic, A. Chan, and G. Little Session 3-3: Web Graphics & Visualisation Chair: Jonathan C.  ... 
doi:10.1109/iv.2001.942032 fatcat:emyaiowfqzgbpcbkcrdv45nexq

A competency framework for colonoscopy training derived from cognitive task analysis techniques and expert review

Christine M. Zupanc, Robin Burgess-Limerick, Andrew Hill, Stephan Riek, Guy M. Wallis, Annaliese M. Plooy, Mark S. Horswill, Marcus O. Watson, David G. Hewett
2015 BMC Medical Education  
Conclusions: The colonoscopy competency framework provides a principled basis for the design of a training program, and for the design of formative assessment to gauge progress towards attaining the knowledge  ...  Methods: Video recording and a think-aloud protocol were conducted while 20 experienced endoscopists performed colonoscopy procedures.  ...  A related tool for pediatric colonoscopy has also been developed using a Delphi process involving 41 pediatric experts [8] .  ... 
doi:10.1186/s12909-015-0494-z pmid:26628262 pmcid:PMC4666200 fatcat:ud5apnj345gqlnzkw7y4xwgrk4

Real-time Interactive Telemedicine for Ubiquitous Healthcare: Networks, Services and Scenarios [chapter]

Georgi Graschew, Theo A., Stefan Rakowsky, Peter M.
2011 Advances in Telemedicine: Technologies, Enabling Factors and Scenarios  
The use of a virtual reality environment e.g. for pre-operative planning of total hip replacement yields a high accuracy and steep learning curve even for first-time users (Testi, 2006) .  ...  for tele-mentoring, teletraining and distributed collaborative work; virtual reality simulations with tracked visualisation and haptic feedback; optimised user interfaces for intraoperative use, etc.  ...  Telemedicine services can range from simply sending a fax message to a colleague to the use of broadband networks with multimodal video-and data streaming for second opinioning as well as medical telepresence  ... 
doi:10.5772/13881 fatcat:lq3mknksqnec7a24ykjvtx5ypm

Electronic chromo-endoscopy: technical details and a clinical perspective

Partha Pal, Aniruddha Pratap Singh, Navya D. Kanuri, Rupa Banerjee
2021 Translational Gastroenterology and Hepatology  
Electronic chromo-endoscopy is convenient compared to dye-based chromo-endoscopy in the sense that it is available at the push of a button in endoscope and reduces procedure time substantially with comparable  ...  Most of the studies have used narrow-band imaging (NBI) (Olympus Medical Systems Tokyo, Japan), although data from i-SCAN (PENTAX Endoscopy, Tokyo, Japan) and flexible spectral imaging color enhancement  ...  The original BLI using Laser light (LASEREO) is commercially available in Japan and Asia-Pacific (17) . LCI LCI is a novel IEE technique which increases image contrast.  ... 
doi:10.21037/tgh-19-373 pmid:35243115 pmcid:PMC8826039 fatcat:x5rc2ij2nvartopexxa75zich4

Colonic lesion characterization in inflammatory bowel disease: A systematic review and meta-analysis

Richard Lord, Nicholas E Burr, Noor Mohammed, Venkataraman Subramanian
2018 World Journal of Gastroenterology  
FICE and i-scan use a post-processing technology built within the processer to provide a coloured-enhanced image.  ...  be accelerated in some lesions [5] .  ... 
doi:10.3748/wjg.v24.i10.1167 pmid:29563760 pmcid:PMC5850135 fatcat:e3xjkedzgnfrfdmjqynx42l7ea

Towards the Virtual Physiological Human [article]

Nadia Magnenat-Thalmann, Benjamin Gilles, Hervé Delingette, Andrea Giachetti, Marco Agus
2007 Eurographics State of the Art Reports  
Human body representations have been used for centuries to help in understanding and documenting the shape and function of its compounding parts.  ...  The objective of this tutorial is to train students and researchers in the various domains involving the modelling and simulation of the human body for medical purposes.  ...  Nonphotorealistic rendering methods can improve the efficacy of Virtual Colonoscopy.  ... 
doi:10.2312/egt.20071062 fatcat:iyybqfp4nnadhfkaeagp6qr63q

Overview of Surgical Simulation [article]

Mohamed A. ElHelw
2020 arXiv   pre-print
The paper discusses the clinical motivation for surgical simulation, the use of virtual environments for surgical training, model acquisition and simplification, deformable models, collision detection,  ...  The practical deployment of the technique is a multi-disciplinary venture encompassing areas in engineering, medicine and psychology.  ...  Realistic visualisation in the simulation environment is achieved by using computer graphics techniques designed for visual realism.  ... 
arXiv:2005.03011v1 fatcat:lukjkpzpirbodanwj3jfgaejmi

Smart fluorescent probes for imaging macrophage activity

Antonio Fernández, Marc Vendrell
2016 Chemical Society Reviews  
Smart fluorescent probes for macrophage activity make use of a broad range of chemical architectures to target different molecular targets.  ...  Smart fluorescent probes for imaging cellular activity offer a whole range of possibilities in biological and medical research, from the interrogation of biological processes in vivo to the visualisation  ...  Over the last 10 years, the group of Bogyo has remarkably accelerated the development of ABPs for imaging cathepsin activity in macrophages.  ... 
doi:10.1039/c5cs00567a pmid:26752349 fatcat:zjt3duoykvhddmcnyv6xdykub4

Bionic Tracking: Using Eye Tracking to Track Biological Cells in Virtual Reality [article]

Ulrik Günther, Kyle I.S. Harrington, Raimund Dachselt, Ivo F. Sbalzarini
2020 arXiv   pre-print
We present Bionic Tracking, a novel method for solving biological cell tracking problems with eye tracking in virtual reality using commodity hardware.  ...  We demonstrate our cell tracking method using the example of two different biological datasets.  ...  Acknowledgements The authors thank all participants of the user study. Thanks to Mette Handberg-Thorsager for providing the Platynereis dataset and for feedback on the manuscript.  ... 
arXiv:2005.00387v2 fatcat:5vzwpfxjzfdnfibwzdfcl3rtty

Impact of a simulation-based induction programme in gastroscopy on trainee outcomes and learning curves

Keith Siau, James Hodson, Peter Neville, Jeff Turner, Amanda Beale, Susi Green, Aravinth Murugananthan, Paul Dunckley, Neil D Hawkes
2020 World Journal of Gastrointestinal Endoscopy  
These data support the role for wider evaluation of pre-clinical induction involving SBT.  ...  Cases tended to perform procedures at a greater frequency than controls in the post-SPRINT period (median: 16.2 vs 13.8 per mo, P = 0.051), resulting in a significantly greater proportion of cases achieving  ...  The third component of the study assessed the impact of the course on long-term trainee outcomes using a case-control method.  ... 
doi:10.4253/wjge.v12.i3.98 pmid:32218889 pmcid:PMC7085944 fatcat:gjliwc7z35bxjk5a6v7cx2x77u

Is hepatobiliary scintigraphy insensitive for the diagnosis of sphincter of Oddi dysfunction?

L Madacsy
2003 Gut  
Acknowledgements The results of this study were discussed with Pelayo Correa; the authors thank Professor Correa for his valuable advice.  ...  Furthermore, on the rare occasions on which colonoscopy is not complete, either a barium enema or a virtual colonoscopy should be performed. The risks of colonoscopy in good hands are minimal.  ...  a strong need for any objective non-invasive method.  ... 
doi:10.1136/gut.52.9.1385-b pmid:12912878 pmcid:PMC1773794 fatcat:dym525nrbvdhtetcxszqdsm4pi

Atrophic gastritis: pathology and endoscopy in the reversibility assessment

M Rugge
2003 Gut  
Acknowledgements The results of this study were discussed with Pelayo Correa; the authors thank Professor Correa for his valuable advice.  ...  Furthermore, on the rare occasions on which colonoscopy is not complete, either a barium enema or a virtual colonoscopy should be performed. The risks of colonoscopy in good hands are minimal.  ...  a strong need for any objective non-invasive method.  ... 
doi:10.1136/gut.52.9.1387-a pmid:12912881 pmcid:PMC1773801 fatcat:4jjous6ltrgc7etm7j3zha2mca
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