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Modelling variations in hospital service delivery based on real time locating information

机译：基于实时定位信息对医院服务提供中的变化进行建模

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Variations in service delivery have been identified as a major challenge to the success of process improvement studies in service departments of hospital such as radiology. Largely, these variations are due to inherent system level factors, i.e., system variations such as unavailability of resources (nurse, bed, doctors, and equipment). These system variations are largely unnecessary/unwarranted and mostly lead to longer waiting times, delays, and lowered productivity of the service units. There is limited research on identifying system variations and modelling them for Service improvements within hospital. Therefore, this paper proposes a modelling methodology to model system variations in radiology based on real time locating system (RTLS) tracking data. The methodology employs concepts from graph theory to identify and represent system variations. In particular, edge coloured directed multi-graphs (ECDMs) are used to model system variations which are reflected in paths adopted by staff, i.e., sequence of rooms/areas traversed while delivering services. The main steps of the methodology are: (ⅰ) identifying the most standard path followed by staff for service delivery; (ⅱ) filtering the redundant events in RTLS tracking database for analysis; (ⅲ) identifying rooms/areas of hospital site involved in the service delivery; (ⅳ) determining patterns of paths adopted by staff from filtered tracking database; and, (ⅴ) representation of patterns in graph based model called as edge coloured directed multigraphs (ECDMs) of a role. A case study of MR scanning process is utilized to illustrate the implementation of the proposed methodology for modelling system variations reflected in the paths adopted by staff.
机译：服务交付的变化已被确定为医院服务部门（例如放射科）成功进行过程改进研究的主要挑战。在很大程度上，这些变化是由于固有的系统级因素引起的，即系统的变化，例如资源（护士，床，医生和设备）的不可用。这些系统的变化在很大程度上是不必要的/不必要的，并且主要导致更长的等待时间，延迟和服务单元生产率的下降。关于识别系统变体并为医院内的服务改善进行建模的研究很少。因此，本文提出了一种基于实时定位系统（RTLS）跟踪数据的放射学系统变化建模方法。该方法采用图论的概念来识别和表示系统变化。特别是，边缘有色有向多图（ECDM）用于建模系统变化，这些变化反映在员工采用的路径中，即在提供服务时经过的房间/区域的顺序。该方法的主要步骤是：（ⅰ）确定员工提供服务所遵循的最标准途径； （ⅱ）过滤RTLS跟踪数据库中的冗余事件以进行分析； （ⅲ）确定参与服务提供的医院场所的房间/区域； （ⅳ）从过滤后的跟踪数据库中确定工作人员采用的路径模式； （ⅴ）基于图形的模型中的模式表示，称为角色的有色边的有向多图（ECDM）。以MR扫描过程的案例研究来说明拟议方法的实现，该方法用于对工作人员采用的路径中反映的系统变化进行建模。

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