Quality and Process Innovation, Academic Medical Center, Amsterdam, the Netherlands.
BMJ Qual Saf. 2011 Dec;20(12):1075-80. doi: 10.1136/bmjqs.2010.049643. Epub 2011 Oct 7.
High access times for MRI facilities have a negative impact on quality of care and patient service. Since these resources are both scarce and expensive, better utilising the capacity is the most economical way of reducing these access times. As a rule, patient appointments are not scheduled efficiently. Consequently, the most promising way of reducing access times is to optimise the scheduling strategy. The aim of this study was to reduce MRI access times by optimising the scheduling strategy and by implementing this strategy in practice in a university hospital in the Netherlands.
The scheduling process was analysed to define the improvement potentials and to simulate the process. Computer simulation was used to copy the process and experiment with scheduling strategies in theory. Promising scenarios were defined and run in the simulation model. Based on the simulation results, a new scheduling strategy was designed and implemented.
The simulation experiments showed that block reduction leads to a maximum decrease in access time of 93%.
Implementing a scheduling strategy with a practically applicable minimum number of blocks resulted in an actual decrease from 36, 22, 28, 9 and 9 to 7, 2, 10, 3 and 1 calendar days, respectively, depending on the patient group.
This study proved that modelling the scheduling process can contribute to optimising the scheduling strategy, which can lead to a reduction in access times for imaging facilities such as MRI scanners.
磁共振成像(MRI)设备的高访问时间对医疗质量和患者服务产生负面影响。由于这些资源稀缺且昂贵,因此更好地利用容量是减少这些访问时间的最经济方式。通常情况下,患者的预约安排效率不高。因此,缩短访问时间最有希望的方法是优化调度策略。本研究旨在通过优化调度策略并在荷兰的一家大学医院中实施该策略来减少 MRI 的访问时间。
分析了调度过程,以确定改进的潜力并对该过程进行模拟。计算机模拟用于复制该过程并在理论上尝试调度策略。定义了有前景的方案并在模拟模型中运行。基于模拟结果,设计并实施了新的调度策略。
模拟实验表明,减少块数可使访问时间最大减少 93%。
实施具有实际可行的最小块数的调度策略,可使实际访问时间分别减少 7、2、10、3 和 1 个日历日,具体取决于患者群体。
本研究证明,对调度过程进行建模有助于优化调度策略,从而可以减少 MRI 等成像设备的访问时间。