The Experts below are selected from a list of 5286 Experts worldwide ranked by ideXlab platform
Michael J. Levy - One of the best experts on this subject based on the ideXlab platform.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commetnaries
Neurosurgery, 2008Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
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Robotic virtual endoscopy: development of a multidirectional rigid endoscope.
Neurosurgery, 2006Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. ApuzzoAbstract:INTRODUCTION The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commentary
Neurosurgery, 2006Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
Charles Y Liu - One of the best experts on this subject based on the ideXlab platform.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commetnaries
Neurosurgery, 2008Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commentary
Neurosurgery, 2006Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
Michelle J Alfa - One of the best experts on this subject based on the ideXlab platform.
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validation of adenosine triphosphate to audit manual cleaning of flexible endoscope channels
American Journal of Infection Control, 2013Co-Authors: Michelle J Alfa, Iram Fatima, Nancy OlsonAbstract:Background: Compliance with cleaning of flexible endoscope channels cannot be verified using visual inspection. Adenosine triphosphate (ATP) has been suggested as a possible rapid cleaning monitor for flexible endoscope channels. There have not been published validation studies to specify the level of ATP that indicates inadequate cleaning has been achieved. Objective: The objective of this study was to validate the Clean-Trace (3M Inc, St. Paul, MN) ATP water test method for monitoring manual cleaning of flexible Endoscopes. Methods: This was a simulated use study using a duodenoscope as the test device. Artificial test soil containing 10 6 colony-forming units of Pseudomonas aeruginosa and Enterococcus faecalis was used to
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establishing a clinically relevant bioburden benchmark a quality indicator for adequate reprocessing and storage of flexible gastrointestinal Endoscopes
American Journal of Infection Control, 2012Co-Authors: Shadi Sepehri, Michelle J Alfa, Nancy Olson, Alana WaldAbstract:BACKGROUND: Microbiological surveillance of patient-ready flexible Endoscopes has been suggested as a tool for endoscope reprocessing quality assurance. However, a proper guideline defining the performance and the frequency of monitoring procedures and specifying how to interpret the results is lacking. MATERIALS AND METHODS: All channels from the 20 flexible gastrointestinal Endoscopes (5 gastroscopes, 9 colonoscopes, and 6 duodenoscopes) used at an endoscopy clinic were tested for the presence of bacteria and fungi early every Monday morning over a 7-month period. RESULTS: Bacteria and fungi were detected in 5.7% of the 383 channels tested. Of the 141 scopes tested, 14.1% had detectable growth in at least 1 channel. No significant relationship was detected between the scope or channel type and detection of microorganisms. Over the 7 months of testing, 99.5% of scope channels consistently demonstrated <100 cfu/mL of microbial growth. CONCLUSION: Based on our clinical findings, we recommend 100 cfu/mL as a reliable and routinely achievable cutoff for bioburden residuals in reprocessed endoscope channels. This cutoff is the same as the Canadian cutoff for dialysis water.
Yukihiro Sakurai - One of the best experts on this subject based on the ideXlab platform.
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endoscope contamination from hbv and hcv positive patients and evaluation of a cleaning disinfecting method using strongly acidic electrolyzed water
Digestive Endoscopy, 2003Co-Authors: Yukihiro Sakurai, Masami Nakatsu, Yuko Sato, Kinuko SatoAbstract:Background: It is well known that strongly acidic electrolyzed water (SAEW) has a potent bactericidal effect. We examined residual viruses on Endoscopes that were used in hepatitis B virus (HBV)-positive and hepatitis C virus (HCV)-positive patients and evaluated the effectiveness of SAEW in cleaning/disinfecting the Endoscopes. Methods: A random sample of Endoscopes used in 109 endoscopies on HBV-positive patients and 107 endoscopies on HCV-positive patients, who underwent upper gastrointestinal endoscopy for various reasons was taken to determine the degree of HBV and HCV contamination. Samples were taken using 10 mL of physiological saline injected through the forceps channel of each endoscope and collected at the distal end to be assayed using polymerase chain reaction (PCR). After examination, each endoscope was treated with air aspiration, then 200 mL of tap water that contained an enzyme detergent was absorbed, and SAEW was aspirated after cleaning with a brush. After each procedure, PCR was used for comparison and to identify any residual viruses. Results: In saline collected after air aspiration, viruses were detected in 39/109 Endoscopes used in HBV patients and in 20/107 Endoscopes used in HCV patients. In the saline aspirated with tap water containing an enzyme detergent, HBV was detected in 12/109 Endoscopes and HCV was detected in 6/107 Endoscopes. However, neither HBV nor HCV was detected after the Endoscopes were cleaned manually with a brush and disinfected with SAEW. Conclusion: Endoscopes contaminated with HBV and HCV are effectively cleaned and disinfected by SAEW.
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strongly acidic electrolyzed water valuable disinfectant of Endoscopes
Digestive Endoscopy, 2002Co-Authors: Yukihiro Sakurai, Kazuei Ogoshi, Takashi Okubo, Mituo Kaku, Intetsu KobayashiAbstract:Background: Glutaraldehyde (GA) is currently considered to be the best disinfectant for endoscope disinfection. However, GA poses high risks for medical staff involved in the process and also to the environment. Strongly acidic electrolyzed water (SAEW) has been recently re-evaluated for its potent bactericidal effect and environmental safety. Methods: Through the aspiration channel of the scopes, upper GI Endoscopes and colonoscopes were experimentally contaminated with Pseudomonas aeruginosa, Mycobacterium avium and hepatitis B surface antigen positive blood. Four disinfection methods were tested: manual washing only, soaking in 3% GA for 5 and 10 min, and a 10-s soak in SAEW with 50 or 100 mL of aspiration. Results: Direct plating culture was positive for Pseudomononas contamination after manual washing only (1/5) and after a 5-min soak in 3% GA. Complete disinfection, confirmed by enrichment culture and polymerase chain reaction (PCR) of Pseudomonas and hepatitis B surface antigen positive blood on the contaminated upper GI endoscope was obtained after a 10-min soak in GA and after using SAEW (0/5). Mycobacterum avium are rather resistant against SAEW as determined by broth culture and PCR (1/5). Conclusion: Strongly acidic electrolyzed water is a valuable disinfectant for Endoscopes.
Michael L.j. Apuzzo - One of the best experts on this subject based on the ideXlab platform.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commetnaries
Neurosurgery, 2008Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
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Robotic virtual endoscopy: development of a multidirectional rigid endoscope.
Neurosurgery, 2006Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. ApuzzoAbstract:INTRODUCTION The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.
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robotic virtual endoscopy development of a multidirectional rigid endoscope commentary
Neurosurgery, 2006Co-Authors: Michael J. Levy, Andy Nguyen, Henry E. Aryan, Rahul Jandial, Hal S. Meltzer, Michael L.j. Apuzzo, Felice Esposito, Paolo Cappabianca, Andre J Grotenhuis, Charles Y LiuAbstract:INTRODUCTION: The use of neuroendoscopy has increased in the past 20 years. Despite an increase in the number of indications for use, novel adjuncts and modifications to existing Endoscopes remain all but nonexistent. We introduce a robotic virtual endoscope with applications for neurosurgery that could serve as a novel step in the evolution of future endoscopic technologies. METHODS: Over the past 8 years, we have worked on the construction of a prototype endoscope with three degrees of freedom that was designed to allow for enhanced safety while maximizing the benefits of virtual field rendition and robotic control. We have developed a prototype to examine a cerebral ventricular model in vitro that functions via either a direct video- or computer-based interface. RESULTS: Assessment of viewing angulation with robotic feedback has verified the accuracy of the prototype. Models support the ability of the endoscope to localize regions identified via a software interface. CONCLUSION: The endoscope is a rigid virtual robotic endoscope that provides complete visual coverage of a three-dimensional space by controlling an adjustable viewing direction with three degrees of freedom.