Modeling and In Vitro Experimental Validation for Kinetics of the Colonoscope in Colonoscopy
Identifieur interne : 002464 ( Ncbi/Checkpoint ); précédent : 002463; suivant : 002465Modeling and In Vitro Experimental Validation for Kinetics of the Colonoscope in Colonoscopy
Auteurs : Wu-Bin Cheng [Canada, République populaire de Chine] ; Yun-Yun Di [Canada] ; Edwin M. Zhang [Canada] ; Michael A. J. Moser [Canada] ; Sivaruban Kanagaratnam [Canada] ; Louis Y. Korman [États-Unis] ; Noune Sarvazyan [États-Unis] ; Wen-Jun Zhang [Canada, République populaire de Chine]Source :
- Annals of biomedical engineering [ 0090-6964 ] ; 2013.
Abstract
Colonoscopy is the most sensitive and specific means for detection of colon cancers and polyps. To make colonoscopy more effective several problems must be overcome including: pain associated with the procedure, the risk of perforation, and incomplete intubation colonoscopy. Technically, these problems are the result of loop formation during colonoscopy. Although, several solutions such as modifying the stiffness of the colonoscope, using an overtube and developing image-guided instruments have been introduced to resolve the looping problem, the results of these systems are not completely satisfactory. A new paradigm to overcome loop formation is proposed that is doctor-assistive colonoscopy. In this approach, the endoscopists performance is enhanced by providing using a kinetic model that provides information such as the shape of the scope, direction of the colon and forces exerted within certain sections. It is expected that with the help of this model, the endoscopist would be able to adjust the manipulation to avoid loop formation. In the present studies, the kinetic model is developed and validated using an
Url:
DOI: 10.1007/s10439-013-0746-1
PubMed: 23358801
PubMed Central: 3625492
Affiliations:
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Experimental Validation for Kinetics of the Colonoscope in Colonoscopy</title>
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Experimental Validation for Kinetics of the Colonoscope in Colonoscopy</title>
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<front><div type="abstract" xml:lang="en"><p id="P1">Colonoscopy is the most sensitive and specific means for detection of colon cancers and polyps. To make colonoscopy more effective several problems must be overcome including: pain associated with the procedure, the risk of perforation, and incomplete intubation colonoscopy. Technically, these problems are the result of loop formation during colonoscopy. Although, several solutions such as modifying the stiffness of the colonoscope, using an overtube and developing image-guided instruments have been introduced to resolve the looping problem, the results of these systems are not completely satisfactory. A new paradigm to overcome loop formation is proposed that is doctor-assistive colonoscopy. In this approach, the endoscopists performance is enhanced by providing using a kinetic model that provides information such as the shape of the scope, direction of the colon and forces exerted within certain sections. It is expected that with the help of this model, the endoscopist would be able to adjust the manipulation to avoid loop formation. In the present studies, the kinetic model is developed and validated using an <italic>ex vivo</italic>
colonoscopy test-bed with a comprehensive kinematic and kinetic data collection. The model utilizes an established colon model based on animal tissue with position tracking sensors, contact force sensors for the intraluminal portion of the scope and a Colonoscopy Force Monitor for the external insertion tube.</p>
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