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Virtual environments for medical training: Graphical and haptic simulation of laparoscopic common bile duct exploration

Identifieur interne : 001349 ( PascalFrancis/Corpus ); précédent : 001348; suivant : 001350

Virtual environments for medical training: Graphical and haptic simulation of laparoscopic common bile duct exploration

Auteurs : Cagatay Basdogan ; Chih-Hao Ho ; Mandayam A. Srinivasan

Source :

RBID : Pascal:01-0484555

Descripteurs français

English descriptors

Abstract

We have developed a computer-based training system to simulate laparoscopic procedures in virtual environments (VEs) for medical training. The major hardware components of our system include a computer monitor to display visual interactions between three-dimensional (3-D) virtual models of organs and instruments together with a pair of force feedback devices interfaced with laparoscopic instruments to simulate haptic interactions. In order to demonstrate the practical utility of the training system, we have chosen to simulate a surgical procedure that involves inserting a catheter into the cystic duct using a pair of laparoscopic forceps. This procedure is performed during laparoscopic cholecystectomy (gallbladder removal) to search for gallstones in the common bile duct. Using the proposed system, the user can be trained to grasp and insert a flexible and freely moving catheter into the deformable cystic duct in virtual environments. As the catheter and the duct are manipulated via simulated laparoscopic forceps, the associated deformations are displayed on the computer screen and the reaction forces are fed back to the user through the force feedback devices. A hybrid modeling approach was developed to simulate the real-time visual and haptic interactions that take place between the forceps and the catheter, as well as the duct; and between the catheter and the duct. This approach combines a finite element model and a particle model to simulate the flexible dynamics of the duct and the catheter, respectively. To simulate the deformable dynamics of the duct in real-time using finite element procedures, a modal analysis approach was implemented such that only the most significant vibration modes of the duct were selected to compute the deformations and the interaction forces. The catheter was modeled using a set of virtual particles that were uniformly distributed along the centerline of catheter and connected to each other via linear and torsional springs and damping elements. In order to convey to the user a sense of touching and manipulating deformable objects through force feedback devices, two haptic interaction techniques that we have developed before were employed. The interactions between the particles of the catheter and the duct were simulated using a point-based haptic interaction technique. The interactions between the forceps and the duct as well as the catheter were simulated using the ray-based haptic interaction technique where the laparoscopic forceps were modeled as connected line segments.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 1083-4435
A03   1    @0 IEEE/ASME trans. mechatron.
A05       @2 6
A06       @2 3
A08 01  1  ENG  @1 Virtual environments for medical training: Graphical and haptic simulation of laparoscopic common bile duct exploration
A11 01  1    @1 BASDOGAN (Cagatay)
A11 02  1    @1 HO (Chih-Hao)
A11 03  1    @1 SRINIVASAN (Mandayam A.)
A14 01      @1 Laboratory for Human and Machine Haptics, Research Laboratory of Electronics, Massachusetts Institute of Technology @2 Cambridge, MA 02139 @3 USA @Z 1 aut. @Z 2 aut. @Z 3 aut.
A14 02      @1 Jet Propulsion Laboratory, California Institute of Technology @2 Pasadena, CA 91109 @3 USA @Z 1 aut.
A20       @1 269-285
A21       @1 2001
A23 01      @0 ENG
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A44       @0 A300
A45       @0 42 ref.
A47 01  1    @0 01-0484555
A60       @1 P
A61       @0 A
A64 01  1    @0 IEEE/ASME transactions on mechatronics
A66 01      @0 USA
C01 01    ENG  @0 We have developed a computer-based training system to simulate laparoscopic procedures in virtual environments (VEs) for medical training. The major hardware components of our system include a computer monitor to display visual interactions between three-dimensional (3-D) virtual models of organs and instruments together with a pair of force feedback devices interfaced with laparoscopic instruments to simulate haptic interactions. In order to demonstrate the practical utility of the training system, we have chosen to simulate a surgical procedure that involves inserting a catheter into the cystic duct using a pair of laparoscopic forceps. This procedure is performed during laparoscopic cholecystectomy (gallbladder removal) to search for gallstones in the common bile duct. Using the proposed system, the user can be trained to grasp and insert a flexible and freely moving catheter into the deformable cystic duct in virtual environments. As the catheter and the duct are manipulated via simulated laparoscopic forceps, the associated deformations are displayed on the computer screen and the reaction forces are fed back to the user through the force feedback devices. A hybrid modeling approach was developed to simulate the real-time visual and haptic interactions that take place between the forceps and the catheter, as well as the duct; and between the catheter and the duct. This approach combines a finite element model and a particle model to simulate the flexible dynamics of the duct and the catheter, respectively. To simulate the deformable dynamics of the duct in real-time using finite element procedures, a modal analysis approach was implemented such that only the most significant vibration modes of the duct were selected to compute the deformations and the interaction forces. The catheter was modeled using a set of virtual particles that were uniformly distributed along the centerline of catheter and connected to each other via linear and torsional springs and damping elements. In order to convey to the user a sense of touching and manipulating deformable objects through force feedback devices, two haptic interaction techniques that we have developed before were employed. The interactions between the particles of the catheter and the duct were simulated using a point-based haptic interaction technique. The interactions between the forceps and the duct as well as the catheter were simulated using the ray-based haptic interaction technique where the laparoscopic forceps were modeled as connected line segments.
C02 01  X    @0 001D02D11
C02 02  X    @0 002B25G03
C03 01  X  FRE  @0 Homme @5 01
C03 01  X  ENG  @0 Human @5 01
C03 01  X  SPA  @0 Hombre @5 01
C03 02  X  FRE  @0 Chirurgie @5 02
C03 02  X  ENG  @0 Surgery @5 02
C03 02  X  SPA  @0 Cirugía @5 02
C03 03  X  FRE  @0 Coeliochirurgie @5 03
C03 03  X  ENG  @0 Laparoscopic surgery @5 03
C03 03  X  SPA  @0 Cirugía laparoscopica @5 03
C03 04  X  FRE  @0 Calcul biliaire @5 04
C03 04  X  ENG  @0 Biliary stone @5 04
C03 04  X  SPA  @0 Cálculo biliar @5 04
C03 05  X  FRE  @0 Enseignement assisté ordinateur @5 05
C03 05  X  ENG  @0 Computer assisted teaching @5 05
C03 05  X  SPA  @0 Enseñanza asistida por computador @5 05
C03 06  X  FRE  @0 Téléopération @5 08
C03 06  X  ENG  @0 Remote operation @5 08
C03 06  X  SPA  @0 Teleacción @5 08
C03 07  X  FRE  @0 Interface utilisateur @5 09
C03 07  X  ENG  @0 User interface @5 09
C03 07  X  SPA  @0 Interfase usuario @5 09
C03 08  X  FRE  @0 Préhension @5 10
C03 08  X  ENG  @0 Gripping @5 10
C03 08  X  SPA  @0 Prension @5 10
C03 09  X  FRE  @0 Sensibilité tactile @5 11
C03 09  X  ENG  @0 Tactile sensitivity @5 11
C03 09  X  SPA  @0 Sensibilidad tactil @5 11
C03 10  X  FRE  @0 Réalité virtuelle @5 12
C03 10  X  ENG  @0 Virtual reality @5 12
C03 10  X  SPA  @0 Realidad virtual @5 12
C03 11  X  FRE  @0 Temps réel @5 13
C03 11  X  ENG  @0 Real time @5 13
C03 11  X  SPA  @0 Tiempo real @5 13
C03 12  X  FRE  @0 Corps déformable @5 14
C03 12  X  ENG  @0 Deformable body @5 14
C03 12  X  SPA  @0 Cuerpo deformable @5 14
C03 13  X  FRE  @0 Méthode élément fini @5 16
C03 13  X  ENG  @0 Finite element method @5 16
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N21       @1 344

Format Inist (serveur)

NO : PASCAL 01-0484555 CRAN
ET : Virtual environments for medical training: Graphical and haptic simulation of laparoscopic common bile duct exploration
AU : BASDOGAN (Cagatay); HO (Chih-Hao); SRINIVASAN (Mandayam A.)
AF : Laboratory for Human and Machine Haptics, Research Laboratory of Electronics, Massachusetts Institute of Technology/Cambridge, MA 02139/Etats-Unis (1 aut., 2 aut., 3 aut.); Jet Propulsion Laboratory, California Institute of Technology/Pasadena, CA 91109/Etats-Unis (1 aut.)
DT : Publication en série; Niveau analytique
SO : IEEE/ASME transactions on mechatronics; ISSN 1083-4435; Etats-Unis; Da. 2001; Vol. 6; No. 3; Pp. 269-285; Bibl. 42 ref.
LA : Anglais
EA : We have developed a computer-based training system to simulate laparoscopic procedures in virtual environments (VEs) for medical training. The major hardware components of our system include a computer monitor to display visual interactions between three-dimensional (3-D) virtual models of organs and instruments together with a pair of force feedback devices interfaced with laparoscopic instruments to simulate haptic interactions. In order to demonstrate the practical utility of the training system, we have chosen to simulate a surgical procedure that involves inserting a catheter into the cystic duct using a pair of laparoscopic forceps. This procedure is performed during laparoscopic cholecystectomy (gallbladder removal) to search for gallstones in the common bile duct. Using the proposed system, the user can be trained to grasp and insert a flexible and freely moving catheter into the deformable cystic duct in virtual environments. As the catheter and the duct are manipulated via simulated laparoscopic forceps, the associated deformations are displayed on the computer screen and the reaction forces are fed back to the user through the force feedback devices. A hybrid modeling approach was developed to simulate the real-time visual and haptic interactions that take place between the forceps and the catheter, as well as the duct; and between the catheter and the duct. This approach combines a finite element model and a particle model to simulate the flexible dynamics of the duct and the catheter, respectively. To simulate the deformable dynamics of the duct in real-time using finite element procedures, a modal analysis approach was implemented such that only the most significant vibration modes of the duct were selected to compute the deformations and the interaction forces. The catheter was modeled using a set of virtual particles that were uniformly distributed along the centerline of catheter and connected to each other via linear and torsional springs and damping elements. In order to convey to the user a sense of touching and manipulating deformable objects through force feedback devices, two haptic interaction techniques that we have developed before were employed. The interactions between the particles of the catheter and the duct were simulated using a point-based haptic interaction technique. The interactions between the forceps and the duct as well as the catheter were simulated using the ray-based haptic interaction technique where the laparoscopic forceps were modeled as connected line segments.
CC : 001D02D11; 002B25G03
FD : Homme; Chirurgie; Coeliochirurgie; Calcul biliaire; Enseignement assisté ordinateur; Téléopération; Interface utilisateur; Préhension; Sensibilité tactile; Réalité virtuelle; Temps réel; Corps déformable; Méthode élément fini
ED : Human; Surgery; Laparoscopic surgery; Biliary stone; Computer assisted teaching; Remote operation; User interface; Gripping; Tactile sensitivity; Virtual reality; Real time; Deformable body; Finite element method
SD : Hombre; Cirugía; Cirugía laparoscopica; Cálculo biliar; Enseñanza asistida por computador; Teleacción; Interfase usuario; Prension; Sensibilidad tactil; Realidad virtual; Tiempo real; Cuerpo deformable; Método elemento finito
LO : INIST-26423
ID : 01-0484555

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Pascal:01-0484555

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<s5>08</s5>
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<s5>08</s5>
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<s5>10</s5>
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<s5>13</s5>
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<s5>14</s5>
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<s5>14</s5>
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<s5>14</s5>
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<s5>16</s5>
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<s0>Finite element method</s0>
<s5>16</s5>
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<server>
<NO>PASCAL 01-0484555 CRAN</NO>
<ET>Virtual environments for medical training: Graphical and haptic simulation of laparoscopic common bile duct exploration</ET>
<AU>BASDOGAN (Cagatay); HO (Chih-Hao); SRINIVASAN (Mandayam A.)</AU>
<AF>Laboratory for Human and Machine Haptics, Research Laboratory of Electronics, Massachusetts Institute of Technology/Cambridge, MA 02139/Etats-Unis (1 aut., 2 aut., 3 aut.); Jet Propulsion Laboratory, California Institute of Technology/Pasadena, CA 91109/Etats-Unis (1 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>IEEE/ASME transactions on mechatronics; ISSN 1083-4435; Etats-Unis; Da. 2001; Vol. 6; No. 3; Pp. 269-285; Bibl. 42 ref.</SO>
<LA>Anglais</LA>
<EA>We have developed a computer-based training system to simulate laparoscopic procedures in virtual environments (VEs) for medical training. The major hardware components of our system include a computer monitor to display visual interactions between three-dimensional (3-D) virtual models of organs and instruments together with a pair of force feedback devices interfaced with laparoscopic instruments to simulate haptic interactions. In order to demonstrate the practical utility of the training system, we have chosen to simulate a surgical procedure that involves inserting a catheter into the cystic duct using a pair of laparoscopic forceps. This procedure is performed during laparoscopic cholecystectomy (gallbladder removal) to search for gallstones in the common bile duct. Using the proposed system, the user can be trained to grasp and insert a flexible and freely moving catheter into the deformable cystic duct in virtual environments. As the catheter and the duct are manipulated via simulated laparoscopic forceps, the associated deformations are displayed on the computer screen and the reaction forces are fed back to the user through the force feedback devices. A hybrid modeling approach was developed to simulate the real-time visual and haptic interactions that take place between the forceps and the catheter, as well as the duct; and between the catheter and the duct. This approach combines a finite element model and a particle model to simulate the flexible dynamics of the duct and the catheter, respectively. To simulate the deformable dynamics of the duct in real-time using finite element procedures, a modal analysis approach was implemented such that only the most significant vibration modes of the duct were selected to compute the deformations and the interaction forces. The catheter was modeled using a set of virtual particles that were uniformly distributed along the centerline of catheter and connected to each other via linear and torsional springs and damping elements. In order to convey to the user a sense of touching and manipulating deformable objects through force feedback devices, two haptic interaction techniques that we have developed before were employed. The interactions between the particles of the catheter and the duct were simulated using a point-based haptic interaction technique. The interactions between the forceps and the duct as well as the catheter were simulated using the ray-based haptic interaction technique where the laparoscopic forceps were modeled as connected line segments.</EA>
<CC>001D02D11; 002B25G03</CC>
<FD>Homme; Chirurgie; Coeliochirurgie; Calcul biliaire; Enseignement assisté ordinateur; Téléopération; Interface utilisateur; Préhension; Sensibilité tactile; Réalité virtuelle; Temps réel; Corps déformable; Méthode élément fini</FD>
<ED>Human; Surgery; Laparoscopic surgery; Biliary stone; Computer assisted teaching; Remote operation; User interface; Gripping; Tactile sensitivity; Virtual reality; Real time; Deformable body; Finite element method</ED>
<SD>Hombre; Cirugía; Cirugía laparoscopica; Cálculo biliar; Enseñanza asistida por computador; Teleacción; Interfase usuario; Prension; Sensibilidad tactil; Realidad virtual; Tiempo real; Cuerpo deformable; Método elemento finito</SD>
<LO>INIST-26423</LO>
<ID>01-0484555</ID>
</server>
</inist>
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