Construct validity for the LAPSIM laparoscopic surgical simulator

Duffy, Andrew; Hogle, Nancy J.; McCarthy, Helen; Lew, John I.; Egan, Andrew; Christos, Paul J.; Fowler, Dennis L.

doi:10.1007/s00464-004-8202-9

Cited by 136 publications

(102 citation statements)

References 24 publications

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“…In practice, this is often established by measuring a logical difference in outcome between research populations with different levels of experience on a specific task of interest. Multiple studies have been conducted to validate different virtual reality systems as tools for training surgeons in endoscopic surgery skills [3,4,6,10,[13][14][15][16][17]. These studies demonstrated construct validity for these systems.…”

Section: Discussionmentioning

confidence: 99%

“…The notion of incorporating virtual reality training into the surgical curriculum has been suggested only recently and therefore validation testing for simulation concepts is a very recent development [3,4,6,10,[13][14][15][16][17].…”

mentioning

confidence: 99%

“…For the LapSim VR simulator (Surgical Science Ltd., Go¨teburg, Sweden), construct validity has been tested in three separate studies that used different methodology and yielded different results [3,4,16].…”

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confidence: 99%

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Construct validity of the LapSim: Can the LapSim virtual reality simulator distinguish between novices and experts?

et al. 2007

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Background: Virtual reality simulators may be invaluable in training and assessing future endoscopic surgeons. The purpose of this study was to investigate if the results of a training session reflect the actual skill of the trainee who is being assessed and thereby establish construct validity for the LapSim virtual reality simulator (Surgical Science Ltd., Gothenburg, Sweden). Methods: Forty-eight subjects were assigned to one of three groups: 16 novices (0 endoscopic procedures), 16 surgical residents in training (>10 but <100 endoscopic procedures), and 16 experienced endoscopic surgeons (>100 endoscopic procedures). Performance was measured by a relative scoring system that combines single parameters measured by the computer. Results: The higher the level of endoscopic experience of a participant, the higher the score. Experienced surgeons and surgical residents in training showed statistically significant higher scores than novices for both overall score and efficiency, speed, and precision parameters. Conclusions: Our results show that performance of the various tasks on the simulator corresponds to the respective level of endoscopic experience in our research population. This study demonstrates construct validity for the LapSim virtual reality simulator. It thus measures relevant skills and can be integrated in an endoscopic training and assessment program.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Construct validity of the LapSim: Can the LapSim virtual reality simulator distinguish between novices and experts?

et al. 2007

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“…Most prominent amongst these metrics are the errors performed and the end-product analysis. These are extensively validated throughout all tasks, and denote a further understanding of a trainee's true skill level [30,33,36,38,40]. VR simulators allow quantifying tissue damage by collisions' detection, which can be seen as an indicator of the spatial perception of the environment [23].…”

Section: Clinical Definition Of Metricsmentioning

confidence: 99%

“…VR simulators allow quantifying tissue damage by collisions' detection, which can be seen as an indicator of the spatial perception of the environment [23]. Where present, this has generated positive validation results as a differentiating metric [24,36,40]. Another quality metricdetection of idle states-has not gained much attention.…”

Section: Clinical Definition Of Metricsmentioning

confidence: 99%

Methods and Tools for Objective Assessment of Psychomotor Skills in Laparoscopic Surgery

García

Sánchez-González

Lamata

et al. 2011

Journal of Surgical Research

131

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Training and assessment paradigms for laparoscopic surgical skills are evolving from traditional mentortrainee tutorship towards structured, more objective and safer programs. Accreditation of surgeons requires reaching a consensus on metrics and tasks used to assess surgeons' psychomotor skills. Ongoing development of tracking systems and software Solutions has allowed for the expansión of novel training and assessment means in laparoscopy. The current challenge is to adapt and include these systems within training programs, and to exploit their possibilities for evaluation purposes. This paper describes the state of the art in research on measuring and assessing psychomotor laparoscopic skills. It gives an overview on tracking systems as well as on metrics and advanced statistical and machine learning techniques employed for evaluation purposes. The later ones have a potential to be used as an aid in deciding on the surgical competence level, which is an important aspect when accreditation of the surgeons in particular, and patient safety in general, are considered. The prospective of these methods and tools make them complementary means for surgical assessment of motor skills, especially in the early stages of training. Successful examples such as the Fundamentáis of Laparoscopic Surgery should help drive a paradigm change to structured curricula based on objective parameters. These may improve the accreditation of new surgeons, as 1 To whom correspondence and reprint requests should be addressed at Bioengineering and Telemedicine Centre (GBT), ETSI Telecomunicación, Universidad Politécnica de Madrid (UPM). Avda Complutense, 30, 28040, Madrid, Spain. E-mail: ioropesa@gbt.tfo. upm.es. well as optimize their already overloaded training schedules.

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Surgical Technical Skills

Aggarwal

Mishra

2013

Essential Simulation in Clinical Education

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Construct validity for the LAPSIM laparoscopic surgical simulator

Abstract: LAPSIM has construct validity to distinguish between expert and novice laparoscopists. Suture simulation can be used to discriminate between individuals at different levels of residency and expert surgeons.

Cited by 136 publications

References 24 publications

Construct validity of the LapSim: Can the LapSim virtual reality simulator distinguish between novices and experts?

Construct validity of the LapSim: Can the LapSim virtual reality simulator distinguish between novices and experts?

Methods and Tools for Objective Assessment of Psychomotor Skills in Laparoscopic Surgery

Surgical Technical Skills

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