Visualization of Patient Distributions in a Hospital Based on the Clinical Actions Stored in EHR

This paper presents an attempt to visualize the geographical distribution of outpatients in a hospital as a preliminary step towards the process-dynamics mining. In order to obtain the locations of patients without using devices carried by themselves, we extract clinical action records (e.g. treatments, examinations and injections) from hospital information systems and utilize the locations of information sources, under an assumption that a patient presented himself or herself at the place where an action was being recorded. Using the temporal records of clinical actions with locations, we firstly summarize the process courses frequently used in outpatient services, and then visualize the dynamics of patients by projecting the change of patient distribution onto hospital maps.