Use of a virtual reality, real-time, simulation model for the training of urologists in transurethral resection of the prostate
Identifieur interne : 000656 ( PascalFrancis/Curation ); précédent : 000655; suivant : 000657Use of a virtual reality, real-time, simulation model for the training of urologists in transurethral resection of the prostate
Auteurs : Reidar K Llström [Suède] ; Hans Hjertberg [Suède] ; Henrik Kjölhede [Suède] ; Joar Svanvik [Suède]Source :
- Scandinavian journal of urology and nephrology [ 0036-5599 ] ; 2005.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Réalité virtuelle, Chirurgie.
English descriptors
- KwdEn :
Abstract
Objective. There is a growing need to develop surgical skills outside the operating theatre. In this study we describe the development of a virtual reality training system for practising transurethral resection of the prostate (TURP). Material and methods. A face validity study was performed using a questionnaire sent to 28 experienced urologists to find out the ideal characteristics of a simulated TURP. Based on the comments a simulator was constructed and a content validity study was then performed in which nine experienced urologists tested the simulator and answered a second questionnaire. After corrections to the simulator, a basic construct validity test was performed. Results. We have developed a computer-based simulator based on the requirements listed by 17 urologists. It consists of a modified resectoscope connected to a haptic device and supported by a frame. The software provides a virtual view of the prostatic lumen and resectoscope tip, a haptic rendering that generates force feedback and a simulation module that computes the information from the haptic device, resectoscope fluid tap and handle and the foot pedals. The software also simulates bleeding, absorption of irrigation fluid and pressure gradients. Variables are measured and presented in a result file after each "operation". Nine experienced urologists performed a content validity study and changes were made accordingly. A basic construct validity test performed by seven inexperienced students showed a significant improvement in performance after they each performed six simulated procedures. Conclusion. We have developed a simulator that may be used to practise TURP and which meets most of the demands raised in a face validity study. A basic construct validity test showed improved performance after repeated practice in the simulated environment.
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Henrik" sort="Kjolhede, Henrik" uniqKey="Kjolhede H" first="Henrik" last="Kjölhede">Henrik Kjölhede</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departments of Surgery and Urology, University Hospital Linköping</s1><s2>Linköping</s2><s3>SWE</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Suède</country></affiliation></author><author><name sortKey="Svanvik, Joar" sort="Svanvik, Joar" uniqKey="Svanvik J" first="Joar" last="Svanvik">Joar Svanvik</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departments of Surgery and Urology, University Hospital Linköping</s1><s2>Linköping</s2><s3>SWE</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Suède</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0438266</idno><date when="2005">2005</date><idno type="stanalyst">PASCAL 05-0438266 INIST</idno><idno type="RBID">Pascal:05-0438266</idno><idno 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Norrköping</s1><s2>Norrköping</s2><s3>SWE</s3><sZ>2 aut.</sZ></inist:fA14><country>Suède</country></affiliation></author><author><name sortKey="Kjolhede, Henrik" sort="Kjolhede, Henrik" uniqKey="Kjolhede H" first="Henrik" last="Kjölhede">Henrik Kjölhede</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departments of Surgery and Urology, University Hospital Linköping</s1><s2>Linköping</s2><s3>SWE</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Suède</country></affiliation></author><author><name sortKey="Svanvik, Joar" sort="Svanvik, Joar" uniqKey="Svanvik J" first="Joar" last="Svanvik">Joar Svanvik</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Departments of Surgery and Urology, University Hospital Linköping</s1><s2>Linköping</s2><s3>SWE</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Suède</country></affiliation></author></analytic><series><title level="j" type="main">Scandinavian journal of urology and nephrology</title><title level="j" type="abbreviated">Scand. j. urol. nephrol.</title><idno type="ISSN">0036-5599</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Scandinavian journal of urology and nephrology</title><title level="j" type="abbreviated">Scand. j. urol. nephrol.</title><idno type="ISSN">0036-5599</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Education</term><term>Face</term><term>Nephrology</term><term>Prostate</term><term>Real time</term><term>Simulation model</term><term>Simulator</term><term>Surgery</term><term>Surgical resection</term><term>Transurethral route</term><term>Treatment</term><term>Urethra</term><term>Urology</term><term>Validity</term><term>Virtual reality</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Voie transurétrale</term><term>Réalité virtuelle</term><term>Temps réel</term><term>Modèle simulation</term><term>Urètre</term><term>Résection chirurgicale</term><term>Prostate</term><term>Validité</term><term>Education</term><term>Face</term><term>Simulateur</term><term>Chirurgie</term><term>Urologie</term><term>Traitement</term><term>Urologue</term><term>Néphrologie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Réalité virtuelle</term><term>Chirurgie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objective. There is a growing need to develop surgical skills outside the operating theatre. In this study we describe the development of a virtual reality training system for practising transurethral resection of the prostate (TURP). Material and methods. A face validity study was performed using a questionnaire sent to 28 experienced urologists to find out the ideal characteristics of a simulated TURP. Based on the comments a simulator was constructed and a content validity study was then performed in which nine experienced urologists tested the simulator and answered a second questionnaire. After corrections to the simulator, a basic construct validity test was performed. Results. We have developed a computer-based simulator based on the requirements listed by 17 urologists. It consists of a modified resectoscope connected to a haptic device and supported by a frame. The software provides a virtual view of the prostatic lumen and resectoscope tip, a haptic rendering that generates force feedback and a simulation module that computes the information from the haptic device, resectoscope fluid tap and handle and the foot pedals. The software also simulates bleeding, absorption of irrigation fluid and pressure gradients. Variables are measured and presented in a result file after each "operation". Nine experienced urologists performed a content validity study and changes were made accordingly. A basic construct validity test performed by seven inexperienced students showed a significant improvement in performance after they each performed six simulated procedures. Conclusion. We have developed a simulator that may be used to practise TURP and which meets most of the demands raised in a face validity study. A basic construct validity test showed improved performance after repeated practice in the simulated environment.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0036-5599</s0></fA01><fA02 i1="01"><s0>SJUNAS</s0></fA02><fA03 i2="1"><s0>Scand. j. urol. nephrol.</s0></fA03><fA05><s2>39</s2></fA05><fA06><s2>4</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Use of a virtual reality, real-time, simulation model for the training of urologists in transurethral resection of the prostate</s1></fA08><fA11 i1="01" i2="1"><s1>KÄLLSTRÖM (Reidar)</s1></fA11><fA11 i1="02" i2="1"><s1>HJERTBERG (Hans)</s1></fA11><fA11 i1="03" i2="1"><s1>KJÖLHEDE (Henrik)</s1></fA11><fA11 i1="04" i2="1"><s1>SVANVIK (Joar)</s1></fA11><fA14 i1="01"><s1>Departments of Surgery and Urology, University Hospital Linköping</s1><s2>Linköping</s2><s3>SWE</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Urology, Vrinnevi Hospital Norrköping</s1><s2>Norrköping</s2><s3>SWE</s3><sZ>2 aut.</sZ></fA14><fA20><s1>313-320</s1></fA20><fA21><s1>2005</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>13995</s2><s5>354000135570540090</s5></fA43><fA44><s0>0000</s0><s1>© 2005 INIST-CNRS. 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We have developed a computer-based simulator based on the requirements listed by 17 urologists. It consists of a modified resectoscope connected to a haptic device and supported by a frame. The software provides a virtual view of the prostatic lumen and resectoscope tip, a haptic rendering that generates force feedback and a simulation module that computes the information from the haptic device, resectoscope fluid tap and handle and the foot pedals. The software also simulates bleeding, absorption of irrigation fluid and pressure gradients. Variables are measured and presented in a result file after each "operation". Nine experienced urologists performed a content validity study and changes were made accordingly. A basic construct validity test performed by seven inexperienced students showed a significant improvement in performance after they each performed six simulated procedures. Conclusion. We have developed a simulator that may be used to practise TURP and which meets most of the demands raised in a face validity study. 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