Development and Evaluation of a Low-Cost and High-Capacity DICOM Image Data Storage System for Research
Development and Evaluation of a Low-Cost and High-Capacity DICOM Image Data Storage System for Research
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DOI：
10.1007/s10278-009-9267-8
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发表时间：
2011-04
影响因子：
4.4
通讯作者：
M. Yakami;K. Ishizu;T. Kubo;T. Okada;K. Togashi
中科院分区：
文献类型：
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作者：
M. Yakami;K. Ishizu;T. Kubo;T. Okada;K. Togashi
用于临床诊断和研究的薄层CT数据现在广泛可用，但由于数据存储容量的限制，在短时间内通常在许多机构中被丢弃。我们设计并构建了一个低成本高容量的医学数字成像和通信（DICOM）存储系统，能够使用现成的消费者硬件组件（如Macintosh计算机、Windows PC和网络连接存储单元）存储薄片图像数据多年。采用“普通”分层文件系统，而不是集中式数据管理系统（如关系数据库），通过将患者DICOM文件排列在目录中来管理患者DICOM文件，从而通过使用Windows资源管理器通过研究日期和患者ID跟踪目录树，快速轻松地访问每个研究的DICOM文件。该系统使用的软件是开源OsiriX和我们自己开发的其他程序，这两个都可以通过互联网免费获得。该系统的初始成本约为3，600美元，增量存储成本约为每1TB 900美元。该系统自2008年2月7日以来一直在运行，存储的数据以每月约1.3 TB的速度增长。截至2009年6月23日，存储的数据总量为21.3 TB。发现维护工作量为每2周一次约30至60分钟。总之，这种新开发的DICOM存储系统是有用的研究，由于其成本效益，巨大的容量，高可扩展性，足够的可靠性，并易于数据访问。
Thin-slice CT data, useful for clinical diagnosis and research, is now widely available but is typically discarded in many institutions, after a short period of time due to data storage capacity limitations. We designed and built a low-cost high-capacity Digital Imaging and COmmunication in Medicine (DICOM) storage system able to store thin-slice image data for years, using off-the-shelf consumer hardware components, such as a Macintosh computer, a Windows PC, and network-attached storage units. “Ordinary” hierarchical file systems, instead of a centralized data management system such as relational database, were adopted to manage patient DICOM files by arranging them in directories enabling quick and easy access to the DICOM files of each study by following the directory trees with Windows Explorer via study date and patient ID. Software used for this system was open-source OsiriX and additional programs we developed ourselves, both of which were freely available via the Internet. The initial cost of this system was about $3,600 with an incremental storage cost of about $900 per 1 terabyte (TB). This system has been running since 7th Feb 2008 with the data stored increasing at the rate of about 1.3 TB per month. Total data stored was 21.3 TB on 23rd June 2009. The maintenance workload was found to be about 30 to 60 min once every 2 weeks. In conclusion, this newly developed DICOM storage system is useful for research due to its cost-effectiveness, enormous capacity, high scalability, sufficient reliability, and easy data access.