DICOM标准论文：基于EGEE网格的医学图像数据库的设计与研究.doc

DICOM标准论文：基于EGEE网格的医学图像数据库的设计与研究【中文摘要】随着计算机信息技术和医疗技术的不断发展和应用,以及人们对医疗保健水平要求的不断提高,CT、MR、DR等数字化医疗设备在临床医学诊断中被广泛的采用,进而导致海量医学数据的产生,现有的数据存储及管理方式面临着巨大的挑战,对运行在医院中的PACS(Picture Archiving and Communication System,影像归档和通信系统)带来了巨大的压力。同时由于医院之间甚至医院内部各科室之间的信息系统差异较大,存在异构性和封闭性等问题,致使不同医疗应用系统间的通信及数据共享比较困难,降低了医学信息服务的质量。而此时网格技术的出现为这一问题提供了一个很好的解决途径。利用网格可以整合多个医院及研究机构,协同工作以实现各种资源的共享,这也是医学图像网格的思想所在。所以本文在分析医学图像数据源的基础上,搭建了一个医学图像数据库,并尝试将网格技术与医学平台的建设结合起来,充分利用网格的优势,解决海量医学数据的存储管理和数据共享。本文主要研究以下内容:首先分析专门用于医学图像存储和传输的标准,即DICOM(Digital Imaging and Communications in Medicine)标准,DICOM标准为各种医疗信息系统的集成创造了条件,也是将医学图像数据库运行在网格下的基础;然后根据对DICOM文件格式和图像信息模型的研究,并参照医院的工作流程,将DICOM医学图像按照一定的逻辑结构存储在数据库中,并以此为基础建立跨平台的医学图像数据库。最后通过对C/S和B/S结构的对比,选择合适的PACS架构,进而研究PACS系统的存储模式及存储策略方案,实现了一个可运行在实验室网格平台下的小型PACS系统。本文设计的医学图像数据库最终是要应用在实验室的网格平台下的,选择Apache+MySQL+PHP组合来进行开发,可跨平台运行,同时具有很好的扩展性,为以后的研究开发提供便利。【英文摘要】With the development and application of computer information technology and medical technology, and people pay more attention to the requirements of medical health care, the hospital widely adopts CT, MR, DR and other digital medical equipments for clinical diagnosis, thus leads to massive production of medical data. The existing method of data storage and management faces great challenges, and brings to the PACS (Picture Archiving and Communication System) running in the hospital huge pressure. At the same time, the information systems among hospitals or even the various departments within the hospital vary widely, having heterogeneous and closure problems, so the communication and data sharing among different medical applications become more difficult, and reducing the quality of medical information service. By this time, the emergence of grid technology provides a better solution for this problem. Using the grid can integrate multiple hospitals and research institutions, and implement the sharing of variety of resource through cooperative work, and this is exactly the idea of medical image grid.Therefore, this paper build a medical image database based on analyzing the medical image data source, and tries to combine with the construction of medical platform with grid technology, taking full advantage of the grid to solve the storage and management of massive medical data and data sharing. This paper studies as following contents:Firstly, this paper will analyze one standard specifically for medical image storage and transmission which named DICOM. It creates conditions for the integration of various medical information systems, and it is also the foundation of medical image database running in the grid environment. Secondly, according to the DICOM file format and image information model, and the work process of hospital, this paper makes the DICOM medical image storaged in the database as certain logical structures, and based on that, builds a cross-platform medical image database. Futhermore, through the comparison between the C/S and B/S structure, this paper selects an appropriate PACS architecture, and then this paper studies the storage mode and storage strategic of PACS, finally implements a small PACS that could run in the grid platform of laboratory.This medical image database is going to apply into the laboratorys grid platform. Using the Apache + MySQL + PHP combination to develop the system, the system can realize cross-platform running, and has good scalability to provide convenient for the future research and development.【关键词】DICOM标准 医学图像数据库 PACS 网格技术【英文关键词】DICOM medical image database PACS grid technology【目录】基于EGEE网格的医学图像数据库的设计与研究摘要4-5Abstract5第1章 绪论8-131.1 课题研究背景及来源8-91.2 医学图像网格的研究现状9-111.2.1 国外研究现状10-111.2.2 国内研究现状111.3 课题研究的现实意义11-121.4 论文主要研究内容12-13第2章 DICOM 标准分析与研究13-282.1 引言13-142.2 DICOM 标准14-192.2.1 DICOM 标准的发展历史14-152.2.2 DICOM 标准的组成15-172.2.3 DICOM 基本概念17-192.3 DICOM 医学图像数据源19-262.3.1 DICOM 医学图像文件格式19-232.3.2 DICOM 医学图像数据的解析23-242.3.3 DICOM 医学图像信息模型24-262.4 DICOM 标准的应用范围及意义26-272.5 本章小结27-28第3章 基于DICOM 标准的医学图像数据库的设计28-363.1 数据库服务器283.2 医学图像数据库设计方案28-293.3 DICOM 存储系统数据管理模块的设计29-343.3.1 医院工作流程29-313.3.2 医学图像数据库的设计31-343.4 医学图像的查询34-353.5 本章小结35-36第4章 基于B/S 的医学图像数据库的设计与实现36-494.1 PACS 架构36-394.1.1 C/S 结构36-374.1.2 B/S 结构37-394.1.3 基于 B/S 结构的 PACS 设计原则394.2 PACS 架构的实现方案39-404.3 PACS 存储方案设计40-444.3.1 PACS 存储性能的要求41-424.3.2 PACS 存储模式424.3.3 PACS 存储策略