Interpretation of motion analysis of laparoscopic instruments based on principal component analysis in box trainer settings

Oropesa García, Ignacio and Pérez Escamirosa, Fernando and Sánchez Margallo, José Alberto and Enciso, Silvia and Rodríguez Vila, Borja and Minor Martínez, Arturo and Sánchez Margallo, Francisco Miguel and Gómez Aguilera, Enrique J. and Sanchez Gonzalez, Patricia (2018). Interpretation of motion analysis of laparoscopic instruments based on principal component analysis in box trainer settings. "Surgical Endoscopy", v. 32 (n. 7); pp. 3096-3107. ISSN 0930-2794. https://doi.org/10.1007/s00464-018-6022-6.

Description

Title: Interpretation of motion analysis of laparoscopic instruments based on principal component analysis in box trainer settings
Author/s:
  • Oropesa García, Ignacio
  • Pérez Escamirosa, Fernando
  • Sánchez Margallo, José Alberto
  • Enciso, Silvia
  • Rodríguez Vila, Borja
  • Minor Martínez, Arturo
  • Sánchez Margallo, Francisco Miguel
  • Gómez Aguilera, Enrique J.
  • Sanchez Gonzalez, Patricia
Item Type: Article
Título de Revista/Publicación: Surgical Endoscopy
Date: January 2018
ISSN: 0930-2794
Volume: 32
Subjects:
Freetext Keywords: Box trainer, Motion analysis, EVA tracking system, Principal component analysis, HSMAP
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 Motion analysis parameters (MAPs) have been extensively validated for assessment of minimally invasive surgical skills. However, there are discrepancies on how specific MAPs, tasks, and skills match with each other, reflecting that motion analysis cannot be generalized independently of the learning outcomes of a task. Additionally, there is a lack of knowledge on the meaning of motion analysis in terms of surgical skills, making difficult the provision of meaningful, didactic feedback. In this study, new higher significance MAPs (HSMAPs) are proposed, validated, and discussed for the assessment of technical skills in box trainers, based on principal component analysis (PCA). Methods Motion analysis data were collected from 25 volunteers performing three box trainer tasks (peg grasping/PG, pattern cutting/PC, knot suturing/KS) using the EVA tracking system. PCA was applied on 10 MAPs for each task and hand. Principal components were trimmed to those accounting for an explained variance >80% to define the HSMAPs. Individual contributions of MAPs to HSMAPs were obtained by loading analysis and varimax rotation. Construct validity of the new HSMAPs was carried out at two levels of experience based on number of surgeries. Results Three new HSMAPs per hand were defined for PG and PC tasks, and two per hand for KS task. PG presented validity for HSMAPs related to insecurity and economy of space. PC showed validity for HSMAPs related to cutting efficacy, peripheral unawareness, and confidence. Finally, KS presented validity for HSMAPs related with economy of space and knotting security. Conclusions PCA-defined HSMAPs can be used for technical skills’ assessment. Construct validation and expert knowledge can be combined to infer how competences are acquired in box trainer tasks. These findings can be exploited to provide residents with meaningful feedback on performance. Future works will compare the new HSMAPs with valid scoring systems such as GOALS.

More information

Item ID: 54597
DC Identifier: http://oa.upm.es/54597/
OAI Identifier: oai:oa.upm.es:54597
DOI: 10.1007/s00464-018-6022-6
Official URL: https://link.springer.com/article/10.1007/s00464-018-6022-6
Deposited by: Memoria Investigacion
Deposited on: 10 Apr 2019 16:33
Last Modified: 10 Apr 2019 16:33
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