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Methods Inf Med 2012; 51(05): 371-382
DOI: 10.3414/ME11-01-0093
Original Articles
Schattauer GmbH

Surgical Workflow Management Schemata for Cataract Procedures

Process Model-based Design and Validation of Workflow Schemata
T. Neumuth
1   Universität Leipzig, Innovation Center for Computer Assisted Surgery (ICCAS), Leipzig, Germany:
,
P. Liebmann
1   Universität Leipzig, Innovation Center for Computer Assisted Surgery (ICCAS), Leipzig, Germany:
,
P. Wiedemann
2   University Hospital Leipzig, Department of Ophthalmology, Leipzig, Germany
,
J. Meixensberger
3   University Hospital Leipzig, Department of Neurosurgery, Leipzig, Germany, Universität Leipzig, Innovation Center for Computer Assisted Surgery (ICCAS), Leipzig, Germany
› Institutsangaben
Weitere Informationen

Publikationsverlauf

received:18. November 2011

accepted:27. April 2012

Publikationsdatum:
20. Januar 2018 (online)

    Lizenzen und Reprints

Summary

Objective: Workflow guidance of surgical activities is a challenging task. Because of variations in patient properties and applied surgical techniques, surgical processes have a high variability. The objective of this study was the design and implementation of a surgical workflow management system (SWFMS) that can provide a robust guidance for surgical activities. We investigated how many surgical process models are needed to develop a SWFMS that can guide cataract surgeries robustly.

Methods: We used 100 cases of cataract surgeries and acquired patient-individual surgical process models (iSPMs) from them. Of these, randomized subsets iSPMs were selected as learning sets to create a generic surgical process model (gSPM). These gSPMs were mapped onto workflow nets as work-flow schemata to define the behavior of the SWFMS. Finally, 10 iSPMs from the disjoint set were simulated to validate the workflow schema for the surgical processes. The measurement was the successful guidance of an iSPM.

Results: We demonstrated that a SWFMS with a workflow schema that was generated from a subset of 10 iSPMs is sufficient to guide approximately 65% of all surgical processes in the total set, and that a subset of 50 iSPMs is sufficient to guide approx. 80% of all processes.

Conclusion: We designed a SWFMS that is able to guide surgical activities on a detailed level. The study demonstrated that the high inter-patient variability of surgical processes can be considered by our approach.

Keywords

Operative surgical procedures - workflow - computer-assisted decision making - computer-assisted surgery - surgical process model
 

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