Spatial perception predicts laparoscopic skills on virtual reality laparoscopy simulator

Hassan, I.; Gerdes, Berthold; Koller, Michael; Dick, Bruce; Hellwig, Dieter; Rothmund, M.; Zielke, A.

doi:10.1007/s00381-007-0330-9

Cited by 36 publications

(31 citation statements)

References 16 publications

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“…In contrast to advanced laparoscopic surgeons, the self-belief of novices seemed to be independent of performance, indicating that training was more important than high levels of self-belief [58]. Innate visual-spatial perception, however, seemed to correlate positively with better performance of novices, indicating the possibility of this trait being used as a selection tool for candidates entering surgical training [59].…”

Section: Nontechnical Aspects Of Surgical Performancementioning

confidence: 92%

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The LapSim virtual reality simulator: promising but not yet proven

2010

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Although the LapSim currently does not have any proven significant advantages over video trainers in terms of basic skills instruction and although the results of validation studies are variable, the potential for such technology to have a huge impact on surgical training is apparent. Work to determine standardized learning curves and proficiency criteria for different levels of trainees is incomplete. Moreover, defining which performance parameters measured by the LapSim accurately determine laparoscopic skill is complex. Further technological advances will undoubtedly improve the efficacy of the LapSim, and the results of large multicenter trials are anticipated.

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Section: Nontechnical Aspects Of Surgical Performancementioning

confidence: 92%

“…Other studies performed with the LapSim have investigated the impact of self-belief [58] and innate visual-spatial perception [59] on surgical performance. Interestingly, high levels of self-belief in novices correlated negatively with laparoscopic skills.…”

Section: Nontechnical Aspects Of Surgical Performancementioning

confidence: 99%

The LapSim virtual reality simulator: promising but not yet proven

2010

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“…In a study by Hassan et al the correlation between visual-spatial perception and laparoscopic skills on virtual reality laparoscopy simulator was investigated (16). The participants underwent laparoscopic training that comprised coordination, cutting and clip application.…”

Section: Discussionmentioning

confidence: 99%

Impact of Perceptual Ability and Mental Imagery Training on Simulated Laparoscopic Knot-Tying in Surgical Novices Using a Nissen Fundoplication Model

et al. 2011

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Background: performing minimally invasive surgery requires training and visual-spatial intelligence. the aim of our study was to examine the impact of visual-spatial perception and additional mental training on the simulated laparoscopic knot-tying task performed by surgical novices.Methods: a total of 40 medical students randomly assigned to two groups underwent two sessions of laparoscopic basic training on a vr simulator (simsurgery ® , oslo, norway). the variables time and tip trajectory (total path length of the instrument tip trajectory) were used to assess the performance of the intracorporeal knot-tying task using a laparoscopic nissen fundoplication model. the experimental group completed additional mental practice during the interval between the two training sessions. all performed a cube subtest of a standard intelligence test (I-s-t 2000 r) to evaluate visualspatial ability.Results: all participants achieved an improvement in time (t = 9.861; p < 0.001) and tip trajectory (t = 6.833; p < 0.001) in the second training session. High scores on the visualspatial test correlated with a faster performance (r = -0.557; p < 0.001) and more precise movements (r = -0.377; p = 0.016).comparison of the two groups did not show any statistical significant differences in the parameters time and tip trajectory.Conclusions: visual-spatial intelligence tested by a cube test correlated with simulated laparoscopic knot-tying skills in surgical novices. additional mental practice did not improve the overall knot-tying performance. further studies are therefore required to determine whether mental practice might be beneficial for experienced laparoscopic surgeons or for more complex tasks.

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“…As is noticed in our material, skills at baseline vary between individuals and we could see that some individuals with bad stereoacuity had difficulties in improving their performance score. Others have shown that previous computer experience and visuo-spatial skills affect performance on VR surgery simulators (Hassan et al 2007;Rosser et al 2007). Schijven & Jakimowicz (2004) found in their study one group that did not benefit from training despite their low initial scores and in ophthalmology, it has been reported that around 10% of residents have difficulties in learning surgical skills (Binenbaum & Volpe 2006).…”

Section: Discussionmentioning

confidence: 99%

Virtual reality cataract surgery training: learning curves and concurrent validity

Selvander

Åsman

2010

Acta Ophthalmologica

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Abstract.Purpose: To investigate initial learning curves on a virtual reality (VR) eye surgery simulator and whether achieved skills are transferable between tasks.Methods: Thirty‐five medical students were randomized to complete ten iterations on either the VR Caspulorhexis module (group A) or the Cataract navigation training module (group B) and then two iterations on the other module. Learning curves were compared between groups. The second Capsulorhexis video was saved and evaluated with the performance rating tool Objective Structured Assessment of Cataract Surgical Skill (OSACSS). The students’ stereoacuity was examined.Results: Both groups demonstrated significant improvements in performance over the 10 iterations: group A for all parameters analysed including score (p < 0.0001), time (p < 0.0001) and corneal damage (p = 0.0003), group B for time (p < 0.0001), corneal damage (p < 0.0001) but not for score (p = 0.752). Training on one module did not improve performance on the other. Capsulorhexis score correlated significantly with evaluation of the videos using the OSACSS performance rating tool. For stereoacuity < and ≥120 seconds of arc, sum of both modules’ second iteration score was 73.5 and 41.0, respectively (p = 0.062).Conclusion: An initial rapid improvement in performance on a simulator with repeated practice was shown. For capsulorhexis, 10 iterations with only simulator feedback are not enough to reach a plateau for overall score. Skills transfer between modules was not found suggesting benefits from training on both modules. Stereoacuity may be of importance in the recruitment and training of new cataract surgeons. Additional studies are needed to investigate this further. Concurrent validity was found for Capsulorhexis module.

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Spatial perception predicts laparoscopic skills on virtual reality laparoscopy simulator

Abstract: Among novices, visual-spatial perception is associated with manual skills performed on a virtual reality simulator. This result may be important for educators to develop adequate training programs that can be individually adapted.

Cited by 36 publications

References 16 publications

The LapSim virtual reality simulator: promising but not yet proven

The LapSim virtual reality simulator: promising but not yet proven

Impact of Perceptual Ability and Mental Imagery Training on Simulated Laparoscopic Knot-Tying in Surgical Novices Using a Nissen Fundoplication Model

Virtual reality cataract surgery training: learning curves and concurrent validity

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