Development and validation of a virtual reality transrectal ultrasound guided prostatic biopsy simulator
Identifieur interne : 001983 ( Ncbi/Curation ); précédent : 001982; suivant : 001984Development and validation of a virtual reality transrectal ultrasound guided prostatic biopsy simulator
Auteurs : Venu Chalasani ; Derek W. Cool ; Shi Sherebrin ; Aaron Fenster ; Joseph Chin ; Jonathan I. IzawaSource :
- Canadian Urological Association Journal [ 1911-6470 ] ; 2011.
Abstract
We present the design, reliability, face, content and construct validity testing of a virtual reality simulator for transrectal ultrasound (TRUS), which allows doctors-in-training to perform multiple different biopsy schemes.
This biopsy system design uses a regular “end-firing” TRUS probe. Movements of the probe are tracked with a micro-magnetic sensor to dynamically slice through a phantom patient’s 3D prostate volume to provide real-time continuous TRUS views. 3D TRUS scans during prostate biopsy clinics were recorded. Intrinsic reliability was assessed by comparing the left side of the prostate to the right side of the prostate for each biopsy. A content and face validity questionnaire was administered to 26 doctors to assess the simulator. Construct validity was assessed by comparing notes from experts and novices with regards to the time taken and the accuracy of each biopsy.
Imaging data from 50 patients were integrated into the simulator. The completed VR TRUS simulator uses real patient images, and is able to provide simulation for 50 cases, with a haptic interface that uses a standard TRUS probe and biopsy needle. Intrinsic reliability was successfully demonstrated by comparing results from the left and right sides of the prostate. Face and content validity respondents noted the realism of the simulator, and its appropriateness as a teaching model. The simulator was able to distinguish between experts and novices during construct validity testing.
A virtual reality TRUS simulator has successfully been created. It has promising face, content and construct validity results.
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DOI: 10.5489/cuaj.09159
PubMed: 21470507
PubMed Central: 3036750
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Venu Chalasani<affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation>Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Development and validation of a virtual reality transrectal ultrasound guided prostatic biopsy simulator</title><author><name sortKey="Chalasani, Venu" sort="Chalasani, Venu" uniqKey="Chalasani V" first="Venu" last="Chalasani">Venu Chalasani</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Cool, Derek W" sort="Cool, Derek W" uniqKey="Cool D" first="Derek W." last="Cool">Derek W. Cool</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Sherebrin, Shi" sort="Sherebrin, Shi" uniqKey="Sherebrin S" first="Shi" last="Sherebrin">Shi Sherebrin</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Fenster, Aaron" sort="Fenster, Aaron" uniqKey="Fenster A" first="Aaron" last="Fenster">Aaron Fenster</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Chin, Joseph" sort="Chin, Joseph" uniqKey="Chin J" first="Joseph" last="Chin">Joseph Chin</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Izawa, Jonathan I" sort="Izawa, Jonathan I" uniqKey="Izawa J" first="Jonathan I" last="Izawa">Jonathan I. Izawa</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21470507</idno><idno type="pmc">3036750</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036750</idno><idno type="RBID">PMC:3036750</idno><idno type="doi">10.5489/cuaj.09159</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">001329</idno><idno type="wicri:Area/Pmc/Curation">001329</idno><idno type="wicri:Area/Pmc/Checkpoint">001B85</idno><idno type="wicri:source">PubMed</idno><idno type="wicri:Area/PubMed/Corpus">000E95</idno><idno type="wicri:Area/PubMed/Curation">000E95</idno><idno type="wicri:Area/PubMed/Checkpoint">000D89</idno><idno type="wicri:Area/Ncbi/Merge">001983</idno><idno type="wicri:Area/Ncbi/Curation">001983</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Development and validation of a virtual reality transrectal ultrasound guided prostatic biopsy simulator</title><author><name sortKey="Chalasani, Venu" sort="Chalasani, Venu" uniqKey="Chalasani V" first="Venu" last="Chalasani">Venu Chalasani</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Cool, Derek W" sort="Cool, Derek W" uniqKey="Cool D" first="Derek W." last="Cool">Derek W. Cool</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Sherebrin, Shi" sort="Sherebrin, Shi" uniqKey="Sherebrin S" first="Shi" last="Sherebrin">Shi Sherebrin</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Fenster, Aaron" sort="Fenster, Aaron" uniqKey="Fenster A" first="Aaron" last="Fenster">Aaron Fenster</name><affiliation><nlm:aff id="af2-cuaj-1-19"> Robarts Research Institute, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Chin, Joseph" sort="Chin, Joseph" uniqKey="Chin J" first="Joseph" last="Chin">Joseph Chin</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author><author><name sortKey="Izawa, Jonathan I" sort="Izawa, Jonathan I" uniqKey="Izawa J" first="Jonathan I" last="Izawa">Jonathan I. Izawa</name><affiliation><nlm:aff id="af1-cuaj-1-19"> Departments of Surgery & Oncology, Divisions of Urology & Surgical Oncology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON</nlm:aff><wicri:noCountry code="subfield">ON</wicri:noCountry></affiliation></author></analytic><series><title level="j">Canadian Urological Association Journal</title><idno type="ISSN">1911-6470</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objective</title><p>We present the design, reliability, face, content and construct validity testing of a virtual reality simulator for transrectal ultrasound (TRUS), which allows doctors-in-training to perform multiple different biopsy schemes.</p></sec><sec><title>Methods</title><p>This biopsy system design uses a regular “end-firing” TRUS probe. Movements of the probe are tracked with a micro-magnetic sensor to dynamically slice through a phantom patient’s 3D prostate volume to provide real-time continuous TRUS views. 3D TRUS scans during prostate biopsy clinics were recorded. Intrinsic reliability was assessed by comparing the left side of the prostate to the right side of the prostate for each biopsy. A content and face validity questionnaire was administered to 26 doctors to assess the simulator. Construct validity was assessed by comparing notes from experts and novices with regards to the time taken and the accuracy of each biopsy.</p></sec><sec><title>Results</title><p>Imaging data from 50 patients were integrated into the simulator. The completed VR TRUS simulator uses real patient images, and is able to provide simulation for 50 cases, with a haptic interface that uses a standard TRUS probe and biopsy needle. Intrinsic reliability was successfully demonstrated by comparing results from the left and right sides of the prostate. Face and content validity respondents noted the realism of the simulator, and its appropriateness as a teaching model. The simulator was able to distinguish between experts and novices during construct validity testing.</p></sec><sec><title>Conclusions</title><p>A virtual reality TRUS simulator has successfully been created. It has promising face, content and construct validity results.</p></sec></div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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