Orthogonal cameras system for tracking of laparoscopic instruments in training environments
Por:
Perez-Escamirosa, Fernando, Oropesa, Ignacio, Sanchez-Gonzalez, Patricia, Tapia-Jurado, Jesus, Ruiz-Lizarraga, Jorge, Minor-Martinez, Arturo
Publicada:
1 ene 2018
Categoría:
Surgery
Resumen:
Introduction: Motion analysis is a valuable tool for assessment of psychomotor skills in laparoscopy. Nonetheless, it requires technologies for tracking the activity of the laparoscopic instruments during training. This paper presents a sensor-free system to track the movements of laparoscopic instruments based on an orthogonal camera system and video image processing. Methods: The movements of the laparoscopic instruments are tracked with two webcams placed in an orthogonal configuration. The position and orientation in the three-dimensional workspace are obtained using color markers placed on the tip of the instruments. results: Accuracy tests show a resolution of 0.14 mm for displacement, with 1694 cm3 of total workspace, and 0.54° in the angular movements. Mean relative errors of the tracking system were <1%. The orthogonal cameras show high precision, linearity, and repeatability of motion recording of the laparoscopic instruments. Conclusion: The proposed system offers unconstrained manipulation of the instruments and a low-cost alternative for traditional tracking technologies. © 2018 Publicaciones Permanyer. All rights reserved.
Filiaciones:
Perez-Escamirosa, Fernando:
Department of Surgery, Faculty of Medicine, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
Univ Nacl Autonoma Mexico, Fac Med, Dept Surg, Ciudad De Mexico, Mexico
Oropesa, Ignacio:
Biomedical Engineering and Telemedicine Centre (GBT), Center for Biomedical Technology, ETSI TelecomunicaciónUniversidad Politécnica de Madrid (UPM), Madrid, Spain
Univ Politecn Madrid, Biomed Engn & Telemed Ctr GBT, Ctr Biomed Technol, ETSI Telecomunicac, Madrid, Spain
Sanchez-Gonzalez, Patricia:
Biomedical Engineering and Telemedicine Centre (GBT), Center for Biomedical Technology, ETSI TelecomunicaciónUniversidad Politécnica de Madrid (UPM), Madrid, Spain
Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
Univ Politecn Madrid, Biomed Engn & Telemed Ctr GBT, Ctr Biomed Technol, ETSI Telecomunicac, Madrid, Spain
Biomed Res Networking Ctr Bioengn Biomat & Nanome, Madrid, Spain
Tapia-Jurado, Jesus:
Centro de Enseñanza por Simulación de Posgrado (CESIP), Unidad de Posgrado, Universidad Nacional Autónoma de México, Facultad de Medicina, Universidad Nacional Autónoma de México Ciudad de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Posgrad, Fac Med, Ctr Ensenanza Simulac Posgrad CESIP, Ciudad De Mexico, Mexico
Ruiz-Lizarraga, Jorge:
Centro de Enseñanza por Simulación de Posgrado (CESIP), Unidad de Posgrado, Universidad Nacional Autónoma de México, Facultad de Medicina, Universidad Nacional Autónoma de México Ciudad de México, Mexico
Univ Nacl Autonoma Mexico, Unidad Posgrad, Fac Med, Ctr Ensenanza Simulac Posgrad CESIP, Ciudad De Mexico, Mexico
Minor-Martinez, Arturo:
Department of Electrical Engineering, Bioelectronics Section, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, Mexico
Inst Politecn Nacl, Dept Elect Engn, Bioelect Sect, Ctr Invest & Estudios Avanzados,CINVESTAV IPN, Ciudad De Mexico, Mexico
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