Abstract
Purpose
Hospitals’ effectiveness and efficiency can be enhanced by automating the resource and time management of the most cost-intensive unit in the hospital: the operating room (OR). The key elements required for the ideal organization of hospital staff and technical resources (such as instruments in the OR) are an exact online forecast of both the surgeon’s resource usage and the remaining intervention time.
Methods
This paper presents a novel online approach relying on time series analysis and the application of a linear time-variant system. We calculated the power spectral density and the spectrogram of surgical perspectives (e.g., used instrument) of interest to compare several surgical workflows.
Results
Considering only the use of the surgeon’s right hand during an intervention, we were able to predict the remaining intervention time online with an error of 21 min 45 s ±9 min 59 s for lumbar discectomy. Furthermore, the performance of forecasting of technical resource usage in the next 20 min was calculated for a combination of spectral analysis and the application of a linear time-variant system (sensitivity: 74 %; specificity: 75 %) focusing on just the use of surgeon’s instrument in question.
Conclusion
The outstanding benefit of these methods is that the automated recording of surgical workflows has minimal impact during interventions since the whole set of surgical perspectives need not be recorded. The resulting predictions can help various stakeholders such as OR staff and hospital technicians. Moreover, reducing resource conflicts could well improve patient care.
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Acknowledgments
This study was kindly funded by the German Federal Ministry of Education and Research (BMBF) and the Saxon Ministry of Science and Fine Arts (SMWK) under Unternehmen Region (Grant Number 03Z1LN12) as well as by the European Regional Development Fund (ERDF) and the State of Saxony in connection with measures to support the technology sector. For this type of study, formal consent is not required. Informed consent was obtained from each participant included in the study.
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Maktabi, M., Neumuth, T. Online time and resource management based on surgical workflow time series analysis. Int J CARS 12, 325–338 (2017). https://doi.org/10.1007/s11548-016-1474-4
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DOI: https://doi.org/10.1007/s11548-016-1474-4