Research Unit Human-Computer Interaction, Institute for Medical Informatics, Statistics & Documentation, Medical University Graz, Graz, Austria.
J Biomed Inform. 2011 Dec;44(6):968-77. doi: 10.1016/j.jbi.2011.07.003. Epub 2011 Jul 26.
This paper describes a new method of collecting additional data for the purpose of skin cancer research from the patients in the hospital using the system Mobile Computing in Medicine Graz (MoCoMed-Graz). This system departs from the traditional paper-based questionnaire data collection methods and implements a new composition of evaluation methods to demonstrate its effectiveness. The patients fill out a questionnaire on a Tablet-PC (or iPad Device) and the resulting medical data is integrated into the electronic patient record for display when the patient enters the doctor's examination room. Since the data is now part of the electronic patient record, the doctor can discuss the data together with the patient making corrections or completions where necessary, thus enhancing data quality and patient empowerment. A further advantage is that all questionnaires are in the system at the end of the day - and manual entry is no longer necessary - consequently raising data completeness. The front end was developed using a User Centered Design Process for touch tablet computers and transfers the data in XML to the SAP based enterprise hospital information system. The system was evaluated at the Graz University Hospital - where about 30 outpatients consult the pigmented lesion clinic each day - following Bronfenbrenner's three level perspective: The microlevel, the mesolevel and the macrolevel: On the microlevel, the questions answered by 194 outpatients, evaluated with the System Usability Scale (SUS) resulted in a median of 97.5 (min: 50, max: 100) which showed that it is easy to use. On the mesolevel, the time spent by medical doctors was measured before and after the implementation of the system; the medical task performance time of 20 doctors (age median 43 (min: 29; max: 50)) showed a reduction of 90%. On the macrolevel, a cost model was developed to show how much money can be saved by the hospital management. This showed that, for an average of 30 patients per day, on a 250 day basis per year in this single clinic, the hospital management can save up to 40,000 EUR per annum, proving that mobile computers can successfully contribute to workflow optimization.
本文描述了一种新方法，通过使用 Graz移动医疗计算系统（MoCoMed-Graz）从医院的患者那里收集额外数据，以进行皮肤癌研究。该系统与传统的基于纸张的问卷调查数据收集方法不同，采用了新的评估方法组合，以展示其有效性。患者在平板电脑（或 iPad 设备）上填写问卷，生成的医疗数据将整合到电子病历中，以便患者进入医生诊室时进行显示。由于数据现在是电子病历的一部分，医生可以与患者一起讨论数据，必要时进行更正或补充，从而提高数据质量和患者的自主权。另一个优势是，所有问卷在一天结束时都在系统中，不再需要手动输入，从而提高了数据完整性。前端是使用面向触摸平板电脑的用户为中心的设计过程开发的，并将数据以 XML 格式传输到基于 SAP 的企业医院信息系统。该系统在格拉茨大学医院进行了评估，该医院每天约有 30 名门诊患者咨询色素斑诊所，评估结果基于 Bronfenbrenner 的三个层次视角：微观层面、中观层面和宏观层面：在微观层面上，194 名门诊患者回答的问题，用系统可用性量表（SUS）进行评估，中位数为 97.5（最小值：50，最大值：100），表明它易于使用。在中观层面上，测量了实施系统前后医生花费的时间；20 名医生（年龄中位数为 43（最小值：29；最大值：50））的医疗任务执行时间减少了 90%。在宏观层面上，开发了一个成本模型来展示医院管理层可以节省多少资金。这表明，在这个单一诊所中，每天平均有 30 名患者，每年有 250 天，医院管理层每年可节省高达 40,000 欧元，证明移动计算机可以成功地为工作流程优化做出贡献。
