Face, content, and construct validity of the EndoViS training system for objective assessment of psychomotor skills of laparoscopic surgeons

Pérez Escamirosa, Fernando and Ordorica Flores, Ricardo Manuel and Oropesa García, Ignacio and Zalles Vidal, Cristian Rubén and Minor Martínez, Arturo (2015). Face, content, and construct validity of the EndoViS training system for objective assessment of psychomotor skills of laparoscopic surgeons. "Surgical Endoscopy", v. 29 (n. 11); pp. 3392-3403. ISSN 0930-2794. https://doi.org/10.1007/s00464-014-4032-6.

Description

Title: Face, content, and construct validity of the EndoViS training system for objective assessment of psychomotor skills of laparoscopic surgeons
Author/s:
  • Pérez Escamirosa, Fernando
  • Ordorica Flores, Ricardo Manuel
  • Oropesa García, Ignacio
  • Zalles Vidal, Cristian Rubén
  • Minor Martínez, Arturo
Item Type: Article
Título de Revista/Publicación: Surgical Endoscopy
Date: November 2015
ISSN: 0930-2794
Volume: 29
Subjects:
Freetext Keywords: Laparoscopic surgery Surgical training Objective assessment Motion metrics Validation Endoscopic orthogonal video system (EndoViS)
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Background The aim of this study is to present face, content, and constructs validity of the endoscopic orthogonal video system (EndoViS) training system and determines its efficiency as a training and objective assessment tool of the surgeons’ psychomotor skills. Methods Thirty-five surgeons and medical students participated in this study: 11 medical students, 19 residents, and 5 experts. All participants performed four basic skill tasks using conventional laparoscopic instruments and EndoViS training system. Subsequently, participants filled out a questionnaire regarding the design, realism, overall functionality, and its capabilities to train hand–eye coordination and depth perception, rated on a 5-point Likert scale. Motion data of the instruments were obtained by means of two webcams built into a laparoscopic physical trainer. To identify the surgical instruments in the images, colored markers were placed in each instrument. Thirteen motion-related metrics were used to assess laparoscopic performance of the participants. Statistical analysis of performance was made between novice, intermediate, and expert groups. Internal consistency of all metrics was analyzed with Cronbach’s α test. Results Overall scores about features of the EndoViS system were positives. Participants agreed with the usefulness of tasks and the training capacities of EndoViS system (score >4). Results presented significant differences in the execution of three skill tasks performed by participants. Seven metrics showed construct validity for assessment of performance with high consistency levels. Conclusions EndoViS training system has been successfully validated. Results showed that EndoViS was able to differentiate between participants of varying laparoscopic experience. This simulator is a useful and effective tool to objectively assess laparoscopic psychomotor skills of the surgeons.

More information

Item ID: 41171
DC Identifier: http://oa.upm.es/41171/
OAI Identifier: oai:oa.upm.es:41171
DOI: 10.1007/s00464-014-4032-6
Official URL: http://link.springer.com/article/10.1007%2Fs00464-014-4032-6
Deposited by: Memoria Investigacion
Deposited on: 28 Jun 2016 17:54
Last Modified: 01 Dec 2016 23:30
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