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Erschienen in: International Journal of Computer Assisted Radiology and Surgery 5/2014

01.09.2014 | Original Article

Surgical task analysis of simulated laparoscopic cholecystectomy with a navigation system

verfasst von: T. Sugino, H. Kawahira, R. Nakamura

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 5/2014

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Abstract

Purpose

   Advanced surgical procedures, which have become complex and difficult, increase the burden of surgeons. Quantitative analysis of surgical procedures can improve training, reduce variability, and enable optimization of surgical procedures. To this end, a surgical task analysis system was developed that uses only surgical navigation information.

Methods

   Division of the surgical procedure, task progress analysis, and task efficiency analysis were done. First, the procedure was divided into five stages. Second, the operating time and progress rate were recorded to document task progress during specific stages, including the dissecting task. Third, the speed of the surgical instrument motion (mean velocity and acceleration), as well as the size and overlap ratio of the approximate ellipse of the location log data distribution, was computed to estimate the task efficiency during each stage. These analysis methods were evaluated based on experimental validation with two groups of surgeons, i.e., skilled and “other” surgeons. The performance metrics and analytical parameters included incidents during the operation, the surgical environment, and the surgeon’s skills or habits.

Results

   Comparison of groups revealed that skilled surgeons tended to perform the procedure in less time and involved smaller regions; they also manipulated the surgical instruments more gently.

Conclusion

   Surgical task analysis developed for quantitative assessment of surgical procedures and surgical performance may provide practical methods and metrics for objective evaluation of surgical expertise.

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Metadaten
Titel
Surgical task analysis of simulated laparoscopic cholecystectomy with a navigation system
verfasst von
T. Sugino
H. Kawahira
R. Nakamura
Publikationsdatum
01.09.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
International Journal of Computer Assisted Radiology and Surgery / Ausgabe 5/2014
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-013-0974-8

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