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In vivo and postmortem compressive properties of porcine abdominal organs

Identifieur interne : 000410 ( PascalFrancis/Curation ); précédent : 000409; suivant : 000411

In 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 :

RBID : Pascal:04-0143227

Descripteurs français

English descriptors

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.
pA  
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A05       @2 2878
A08 01  1  ENG  @1 In vivo and postmortem compressive properties of porcine abdominal organs
A09 01  1  ENG  @1 MICCAI 2003 : medical image computing and computer-assisted intervention : Montreal PQ, 15-18 November 2003
A11 01  1    @1 BROWN (Jeffrey D.)
A11 02  1    @1 ROSEN (Jacob)
A11 03  1    @1 SINANAN (Mika N.)
A11 04  1    @1 HANNAFORD (Blake)
A12 01  1    @1 ELLIS (Randy E.) @9 ed.
A12 02  1    @1 PETERS (Terry M.) @9 ed.
A14 01      @1 Biorobotics Laboratory, University of Washington @3 USA @Z 1 aut. @Z 2 aut. @Z 4 aut.
A14 02      @1 Department of Surgery, University of Washington @3 USA @Z 3 aut.
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A23 01      @0 ENG
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A44       @0 0000 @1 © 2004 INIST-CNRS. All rights reserved.
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C01 01    ENG  @0 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.
C02 01  X    @0 001D02C03
C03 01  X  FRE  @0 Boucle réaction @5 01
C03 01  X  ENG  @0 Feedback @5 01
C03 01  X  SPA  @0 Retroalimentación @5 01
C03 02  X  FRE  @0 Rétroaction @5 02
C03 02  X  ENG  @0 Feedback regulation @5 02
C03 02  X  SPA  @0 Retroacción @5 02
C03 03  X  FRE  @0 Base donnée @5 03
C03 03  X  ENG  @0 Database @5 03
C03 03  X  SPA  @0 Base dato @5 03
C03 04  X  FRE  @0 Simulateur @5 04
C03 04  X  ENG  @0 Simulator @5 04
C03 04  X  SPA  @0 Simulador @5 04
C03 05  X  FRE  @0 Sensibilité tactile @5 11
C03 05  X  ENG  @0 Tactile sensitivity @5 11
C03 05  X  SPA  @0 Sensibilidad tactil @5 11
C03 06  X  FRE  @0 Chirurgie @5 12
C03 06  X  ENG  @0 Surgery @5 12
C03 06  X  SPA  @0 Cirugía @5 12
C03 07  X  FRE  @0 Propriété mécanique @5 13
C03 07  X  ENG  @0 Mechanical properties @5 13
C03 07  X  SPA  @0 Propiedad mecánica @5 13
C03 08  X  FRE  @0 Partie molle @5 14
C03 08  X  ENG  @0 Soft tissue @5 14
C03 08  X  SPA  @0 Parte blanda @5 14
C03 09  X  FRE  @0 Tissu @5 15
C03 09  X  ENG  @0 Tissue @5 15
C03 09  X  SPA  @0 Tejido @5 15
C03 10  X  FRE  @0 Endoscopie @5 16
C03 10  X  ENG  @0 Endoscopy @5 16
C03 10  X  SPA  @0 Endoscopía @5 16
C03 11  X  FRE  @0 Préhenseur @5 17
C03 11  X  ENG  @0 Gripper @5 17
C03 11  X  SPA  @0 Prensor(robot) @5 17
C03 12  X  FRE  @0 In vivo @5 18
C03 12  X  ENG  @0 In vivo @5 18
C03 12  X  SPA  @0 In vivo @5 18
C03 13  X  FRE  @0 In situ @5 19
C03 13  X  ENG  @0 In situ @5 19
C03 13  X  SPA  @0 In situ @5 19
C03 14  X  FRE  @0 Charge statique @5 20
C03 14  X  ENG  @0 Static load @5 20
C03 14  X  SPA  @0 Carga estática @5 20
N21       @1 089
N82       @1 PSI
pR  
A30 01  1  ENG  @1 International conference on medical image computing and computer-assisted intervention @2 6 @3 Montreal PQ CAN @4 2003-11-15

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