Langer Steve
Department of Radiology, University of Washington Medical Center, Seattle, WA, USA.
J Digit Imaging. 2002 Jun;15(2):91-7. doi: 10.1007/s10278-002-0010-y. Epub 2002 Sep 26.
The benefits of an integrated picture archiving and communication system/radiology information system (PACS/RIS) archive built with open source tools and methods are 2-fold. Open source permits an inexpensive development model where interfaces can be updated as needed, and the code is peer reviewed by many eyes (analogous to the scientific model). Integration of PACS/RIS functionality reduces the risk of inconsistent data by reducing interfaces among databases that contain largely redundant information. Also, wide adoption would promote standard data mining tools--reducing user needs to learn multiple methods to perform the same task. A model has been constructed capable of accepting HL7 orders, performing examination and resource scheduling, providing digital imaging and communications in medicine (DICOM) worklist information to modalities, archiving studies, and supporting DICOM query/retrieve from third party viewing software. The multitiered architecture uses a single database communicating via an ODBC bridge to a Linux server with HL7, DICOM, and HTTP connections. Human interaction is supported via a web browser, whereas automated informatics services communicate over the HL7 and DICOM links. The system is still under development, but the primary database schema is complete as well as key pieces of the web user interface. Additional work is needed on the DICOM/HL7 interface broker and completion of the base DICOM service classes.
采用开源工具和方法构建集成化图像存档与通信系统/放射学信息系统(PACS/RIS)存档有两方面的好处。开源允许采用低成本的开发模式,接口可根据需要更新,代码也会经过众多同行的审查(类似于科学模式)。PACS/RIS功能的集成通过减少包含大量冗余信息的数据库之间的接口,降低了数据不一致的风险。此外,广泛采用将推动标准数据挖掘工具的发展,减少用户为执行相同任务而学习多种方法的需求。已构建了一个模型,该模型能够接受HL7订单、执行检查和资源调度、向设备提供医学数字成像和通信(DICOM)工作列表信息、存档研究,并支持从第三方查看软件进行DICOM查询/检索。多层架构使用单个数据库,通过ODBC桥与具有HL7、DICOM和HTTP连接的Linux服务器进行通信。通过网络浏览器支持人机交互,而自动化信息服务则通过HL7和DICOM链接进行通信。该系统仍在开发中,但主要数据库模式已完成,网络用户界面的关键部分也已完成。DICOM/HL7接口代理还需要进一步工作,基础DICOM服务类也有待完善。