基于HL7的HIS与PACS／RIS集成

目的：将HIS与PACS／RIS集成,解决两套系统数据无法共享的问题,优化业务流程,满足医院日益增长的信息化需求。方法：通过利用医疗领域不同系统之间电子数据传输的标准协议HL7技术,开发HL7接口引擎,将两个系统紧密集成．实现数据完全共享。结果：HL7接口引擎开发完成后,解决了HIS与PACS／RIS的信息共享问题,提高了工作效率。结论：HL7技术成熟,符合国际标准,扩展性很好,既有助于提高诊疗质量,又能有效保证医院内部数据的一致性。     

DICOM技术在PACS系统中的应用综述

PACS是当代医院信息化高速发展的重要环节,而DICOM又是PACS中医学图像格式和传输医学图像协议的标准。阐述基于DICOM标准的PACS系统的国内外发展现状,并对PACS系统按其应用分类进行了详细阐述,并分类研究了DICOM在PACS中的应用,同时论述了DICOM在PACS中的长远展望。     

Measuring tip-apex distance using a picture archiving and communication system (PACS)

BACKGROUND: The sliding hip screw is currently the most frequently used prosthesis used to fix trochanteric fractures of the hip. The 'tip-apex distance' (TAD) has been found to be predictive of hardware failure, with a larger TAD being associated with an increasing risk of 'cut-out'. Previous studies have either used 'hard-copy' radiographs and geometrical aids or a mixture of scanned hard-copy images and extra software to measure TAD. The current study describes a new method of tip-apex distance estimation using an entirely digital picture archiving and communication system (PACS). MATERIALS AND METHODS: Ten radiographs were measured for TAD by four surgeons of differing experience using the described measurement protocol, at two different time points (4 weeks apart). The results were then subjected to two-tailed t-tests to determine if they differed significantly. RESULTS: No tests attained significance (i.e. no statistical difference existed between the observers' measurements and no difference existed over time from a single observer's results). CONCLUSION: This study shows that TAD can be easily, accurately and, importantly, reproducibly measured using an entirely digitally based image capture and archiving system. The ease with which the measurements and calculations can be made will facilitate orthopaedic practitioners and trauma units in their auditing activities, and allows for quick TAD estimation in the 'X-ray meeting' environment.     

A Study on Image Quality Management in PACS Used by Korean Hospitals

This study evaluated a method to maintain the optimal image quality in clinical practice for image quality management in a picture archiving and communication system (PACS) that uses typical technology for digital medical images. This study conducted a survey of 25 hospitals in Seoul and metropolitan areas that had installed PACS to examine the reality of image quality management. Sixteen diagnostic monitors were used as calibration tools to compare and analyze the external illuminance uniformity and grayscale standard display function (GSDF) values at each frequency. According to the survey results, most of the hospitals did not have any particular rules or standardized methods for image quality control. In a PACS, the calibration frequency was examined within the allowable limits of error for each week and month. The calibration was not affected by the difference in brightness of the environment for reading an image. The GSDF measurement values were quite different from the standard values. In conclusion, to improve the image quality of the digital system, it is important to make good use of the system and maintain the image quality. Therefore, it is critical to capitalize on the method suggested in this study and maintain the optimal image quality to guarantee a high level of observer satisfaction.     

基于互联网的开放式数字医学影像资料库的构建

传统的医学影像管理系统，比如图像存档与通讯系统（PACS），都是基于专用的工作站和封闭式的体系结构。近年来，因特网技术的蓬勃发展使得医学影像数据的共享和分布式存储成为可能。本文提出基于因特网应用技术构建开放式数字影像资料库的体系结构和实现模式，结合PACS系统模式对他们各自的特点进行了对比，并给出了其实现的思路。     

快速变化的动态信号的采样在医疗设备改造中的应用

本文介绍了一种对快速变化的动态信号进行采样的方法，其基本思想是用多个采样／保持器将动脉信号的变化过程录下来。文章给出了相应的硬软件框架。实际应用结果表明，该方法具有容易实现、实用性强等特点，而且所需硬件费用较低。适用于将一些旧的影像和检验设备与HIS系统，PACS系统的联接。     

国强PACS的研制及应用

目的研制适合中国国情的ＰＡＣＳ。材料与方法数字成像设备或直接采集图象，或转为ＤＩＣＯＭ后采集，存储以硬盘为主，配以光盘刻录机；图像可回传并在网内互相调阅，可远程会诊，光盘刻录时同时刻入一程序使存储图像可在ＰＡＣＳ以外的 ＰＣ机上做后处理。结果国强 ＰＡＣＳ具备以下几项适合中国国情的特点：①无ＤＩＣＯＭ协议的旧式影像设备可进行数字采集，②光盘刻录的图像可在ＰＣ机上进行多项后处理。③用ＩＮＴＥＲＮＥＴ和ＭＯＤＥＭ两种方式传输。结论国强ＰＡＣＳ既适合中国国情，又与国际标准接轨。     

HIS、LIS、PACS有效规范收费行为

本文简要介绍了我院信息系统发展的现状,并以LIS为例讲述了我院如何利用HIS、LIS、PACS系统的建设,实现诊疗过程中各种检查费用的有效控制,从而有效规范诊疗过程中的收费行为。     

医院数据库负载均衡设计实践

随着医院业务规模的扩大,对信息系统应用范围也日渐扩大,数据和网络安全越来越成为医院关心的问题之一。医院网络系统的高可用性和数据库的高安全性是其中最为引人关注的问题。本文对医院数据库负载均衡问题进行了较科学的设计,并有效地解决了系统在使用高峰时运行速度缓慢、启机等问题,保证联网工作站良好运行。     

我院放射科医学影像存档和通讯系统硬件配置方案的探讨

本文从医院的实际情况出发，并根据放射科现有的设备，从安全性、经济性和扩展性等几方面探讨放射科PACS的硬件配置方案。