Understanding Perceptual Boundaries in Laparoscopic Surgery

Lamata de la Orden, Pablo and Gómez Aguilera, Enrique J. and Lamata Hernández, Félix and Oltra Pastor, Alfonso and Sánchez Margallo, Francisco Miguel and Pozo Guerrero, Francisco del (2008). Understanding Perceptual Boundaries in Laparoscopic Surgery. "IEEE Transactions on Biomedical Engineering", v. 55 (n. 3); pp. 866-873. ISSN 0018-9294.


Title: Understanding Perceptual Boundaries in Laparoscopic Surgery
  • Lamata de la Orden, Pablo
  • Gómez Aguilera, Enrique J.
  • Lamata Hernández, Félix
  • Oltra Pastor, Alfonso
  • Sánchez Margallo, Francisco Miguel
  • Pozo Guerrero, Francisco del
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Biomedical Engineering
Date: March 2008
Volume: 55
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
UPM's Research Group: perceptual fidelity boundary utile fidelity boundary augmented reality ex vivo tissue biomechanical property force feedback algorithm human perceptual capability laparoscopic pulling force laparoscopic surgery surgeons surgical gesture tissue consistency perception tissue stiffness virtual reality simulator
Creative Commons Licenses: Recognition - Non commercial - Share

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Human perceptual capabilities related to the laparoscopic interaction paradigm are not well known. Its study is important for the design of virtual reality simulators, and for the specification of augmented reality applications that overcome current limitations and provide a supersensing to the surgeon. As part of this work, this article addresses the study of laparoscopic pulling forces. Two definitions are proposed to focalize the problem: the perceptual fidelity boundary, limit of human perceptual capabilities, and the Utile fidelity boundary, that encapsulates the perceived aspects actually used by surgeons to guide an operation. The study is then aimed to define the perceptual fidelity boundary of laparoscopic pulling forces. This is approached with an experimental design in which surgeons assess the resistance against pulling of four different tissues, which are characterized with both in vivo interaction forces and ex vivo tissue biomechanical properties. A logarithmic law of tissue consistency perception is found comparing subjective valorizations with objective parameters. A model of this perception is developed identifying what the main parameters are: the grade of fixation of the organ, the tissue stiffness, the amount of tissue bitten, and the organ mass being pulled. These results are a clear requirement analysis for the force feedback algorithm of a virtual reality laparoscopic simulator. Finally, some discussion is raised about the suitability of augmented reality applications around this surgical gesture.

More information

Item ID: 2023
DC Identifier: http://oa.upm.es/2023/
OAI Identifier: oai:oa.upm.es:2023
Deposited by: Memoria Investigacion
Deposited on: 22 Dec 2009 07:48
Last Modified: 20 Apr 2016 11:49
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