Int J Comput Assist Radiol Surg - Construct and face validity of SINERGIA laparoscopic virtual reality simulator.

Tópicos

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Resumo

RPOSE: Laparoscopic techniques have nowadays become a gold standard in many surgical procedures, but they imply a more difficult learning skills process. Simulators have a fundamental role in the formative stage of new surgeons. This paper presents the construct and face validity of SINERGIA laparoscopic virtual reality simulator in order to decide whether it can be considered as an assessment tool.METHODS: Twenty people participated in this study, 14 were novices and 6 were experts. Five tasks of SINERGIA were included in the study: coordination, navigation, navigation and touch, precise grasping and coordinate traction. For each one of these tasks, a certain number of metrics are automatically recorded. All subjects accomplished each task only once and filled in two questionnaires. A statistical analysis was made and results from both groups were compared with the Mann-Whitney U-test, considering significant differences when P < or = 0.05. Internal consistency of the system has been analyzed with the Cronbach's alpha test.RESULTS: Novices and experts positively rated SINERGIA characteristics. At least one of the evaluated metrics of each exercise presented significant differences between both groups. Nevertheless, all metrics under study gave a better punctuation to the executions accomplished by experts (lower time, higher efficiency, fewer errors. . .) than to those made by novices.CONCLUSION: SINERGIA laparoscopic virtual reality simulator is able to discriminate subjects according to their level of experience in laparoscopic surgery; therefore, it can be used within a training program as an assessment tool.

Resumo Limpo

rpose laparoscop techniqu nowaday becom gold standard mani surgic procedur impli difficult learn skill process simul fundament role format stage new surgeon paper present construct face valid sinergia laparoscop virtual realiti simul order decid whether can consid assess toolmethod twenti peopl particip studi novic expert five task sinergia includ studi coordin navig navig touch precis grasp coordin traction one task certain number metric automat record subject accomplish task fill two questionnair statist analysi made result group compar mannwhitney utest consid signific differ p intern consist system analyz cronbach alpha testresult novic expert posit rate sinergia characterist least one evalu metric exercis present signific differ group nevertheless metric studi gave better punctuat execut accomplish expert lower time higher effici fewer error made novicesconclus sinergia laparoscop virtual realiti simul abl discrimin subject accord level experi laparoscop surgeri therefor can use within train program assess tool

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