MODELING AND EVALUATING IMAGE MANAGEMENT SYSTEMS

该计划项目的目标是发展一个定量的 图像临床效果客观评价模型 存档和通信系统（PACS）。 诊断准确性、效率、满意度、成本和选择 结果将在三个临床试验机构进行前瞻性测量： 急诊科、医疗重症监护室和外科 加护病房 数据收集周期的迭代设计 与干预措施穿插使用，以促进评价 一项日新月异的技术。 第一个项目开发了一个诊断价值指数， 诊断的准确性和信息获取的效率。 使用观察者一致性估计精度的方法将是 研究了 该指数将成为有效性分析的一部分。 第二个项目研究各种PACS实施如何影响 病人护理的有效性。 数学模型将 开发用于模拟诊断成像和信息传递 过程 这些模拟将提供有关 假设情况下的PACS，并将帮助识别机会 改进。 第三个项目研究PACS工作站在医院的有效使用 临床环境 它将集中精力及时获得 报告和图像。 第四个项目开发了一个模型，用于评估临床 和经济效益。 该项目将汇集 其他项目的有效性措施，并将其纳入 成本效益模型。 这些项目不仅将提供有关PACS的有用信息， 也是一种评估快速出现的信息的示范方法， 基于技术。

The goal of the Program Project is the development of a quantitative model for the objective evaluation of the clinical impact of picture archiving and communication systems (PACS). Diagnostic accuracy, efficiency, satisfaction, cost, and selected outcomes will be measured prospectively at three clinical sites: an emergency department, a medical intensive care unit, and surgical intensive care unit. An iterative design of data collection cycles interspersed with interventions is used to facilitate the evaluation of a rapidly changing technology. The first project develops an index of diagnostic value that combines diagnostic accuracy and the efficiency of information acquisition. Methods of estimating accuracy by using observer agreement will be studied. The index will be part of the effectiveness analysis. The second project studies how various PACS implementations influence the effectiveness of patient care. Mathematical models will be developed to simulate the diagnostic imaging and information delivery process. The simulations will provide data about the operation of the PACS under hypothetical situations and will help identify opportunities for improvement. The third project studies the effective use of PACS workstation in a clinical environment. It will concentrate on the timely acquisition of reports and images. The fourth project develops a model for the evaluation of the clinical and economic outcomes of PACS. This project will bring together the effectiveness measures from the other projects and integrate them into a cost-effectiveness model. These projects will provide not only useful information about PACS but also a model methodology for evaluating a rapidly emerging information based technology.