In vivo and postmortem compressive properties of porcine abdominal organs
Identifieur interne : 007006 ( Main/Exploration ); précédent : 007005; suivant : 007007In vivo and postmortem compressive properties of porcine abdominal organs
Auteurs : Jeffrey D. Brown [États-Unis] ; Jacob Rosen [États-Unis] ; Mika N. Sinanan [États-Unis] ; Blake Hannaford [États-Unis]Source :
- Lecture notes in computer science [ 0302-9743 ] ; 2003.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Base de données, Chirurgie.
English descriptors
- KwdEn :
Abstract
In order to provide realistic haptic feedback, simulators must incorporate accurate computational models of the in-vivo mechanical behavior of soft tissues. Surgical simulation technology has progressed rapidly but lacks a comprehensive database of soft tissue mechanical properties with which to incorporate. Simulators are often designed purely based on what "feels about right;" quantitative empirical data are lacking. It is important to test tissues in-vivo and apply surgically relevant ranges of force, deformation, and duration. A motorized endoscopic grasper was used to test seven porcine abdominal organs in-vivo, in-situ, and ex-corpus with cyclic and static compressive loadings. Elastic and stress relaxation characteristics were examined. Results from liver are presented here. Notable differences were found between successive squeezes and between conditions for elastic and relaxation behaviors.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 001099
- to stream PascalFrancis, to step Curation: 000410
- to stream PascalFrancis, to step Checkpoint: 000E53
- to stream Main, to step Merge: 007485
- to stream Main, to step Curation: 007006
Le document en format XML
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<term>Feedback regulation</term>
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<term>In situ</term>
<term>In vivo</term>
<term>Mechanical properties</term>
<term>Simulator</term>
<term>Soft tissue</term>
<term>Static load</term>
<term>Surgery</term>
<term>Tactile sensitivity</term>
<term>Tissue</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Boucle réaction</term>
<term>Rétroaction</term>
<term>Base donnée</term>
<term>Simulateur</term>
<term>Sensibilité tactile</term>
<term>Chirurgie</term>
<term>Propriété mécanique</term>
<term>Partie molle</term>
<term>Tissu</term>
<term>Endoscopie</term>
<term>Préhenseur</term>
<term>In vivo</term>
<term>In situ</term>
<term>Charge statique</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Base de données</term>
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<front><div type="abstract" xml:lang="en">In order to provide realistic haptic feedback, simulators must incorporate accurate computational models of the in-vivo mechanical behavior of soft tissues. Surgical simulation technology has progressed rapidly but lacks a comprehensive database of soft tissue mechanical properties with which to incorporate. Simulators are often designed purely based on what "feels about right;" quantitative empirical data are lacking. It is important to test tissues in-vivo and apply surgically relevant ranges of force, deformation, and duration. A motorized endoscopic grasper was used to test seven porcine abdominal organs in-vivo, in-situ, and ex-corpus with cyclic and static compressive loadings. Elastic and stress relaxation characteristics were examined. Results from liver are presented here. Notable differences were found between successive squeezes and between conditions for elastic and relaxation behaviors.</div>
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