Standardization of performance evaluation in MRI: 13 years' experience of intersystem comparison
Standardization of performance evaluation in MRI: 13 years' experience of intersystem comparison
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DOI：
10.1002/cmr.10012
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发表时间：
2002-03-01
期刊：
影响因子：
--
通讯作者：
Kitney, R
中科院分区：
文献类型：
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作者：
De Wilde, J;Price, D;Kitney, R
本文介绍了13年来为标准化磁共振成像（MRI）中的图像质量测量所做的工作。磁共振国家评估小组（MagNET）是一家总部位于英国的非营利组织，自1988年以来一直在进行图像质量评估。这些型式试验的结果主要供英国国家卫生服务局在购买和安装新的MRI系统时使用。英国目前有大约300个MRI系统，这比美国或日本的数量要少得多。然而，这些测试被认为是必不可少的，以确保质量和安全的核磁共振成像在一个国家化的卫生服务。超过70个MRI系统已进行了一系列性能特征的类型测试;本文重点介绍了四个参数，以证明系统间比较的成功和缺陷。总的来说，信噪比和几何失真的数据清楚地显示了高保持MRI的优点，并反映了市场向这个方向的转变。测试还清楚地区分开边和圆柱形孔磁体设计。成像速度参数是在过去10年中提出的，清楚地反映了MRI中计算机数据处理和梯度性能的快速发展。(C)2002 Wiley Periodicals，Inc.
This paper presents work undertaken over 13 years to standardize image quality measurements in magnetic resonance imaging (MRI). The Magnetic Resonance National Evaluation Team, MagNET, a nonprofit organization based in the United Kingdom, has performed image quality evaluations since 1988. The results of these type tests have been for the use of the UK National Health Service primarily during purchasing and installation of a new MRI system. The United Kingdom currently has around 300 MRI systems Which is a substantially lower number than found in the United States or Japan. However these tests are deemed essential to ensure quality and safety of MRI within a nationalized health service. Over 70 MRI systems have been type tested for a range of performance characteristics; this paper focuses on four parameters to demonstrate the successes and pitfalls of intersystem comparison. overall the data for signal-to-noise ratio and geometric distortion clearly show the benefits of high-held MRI and reflect the market shift in this direction. The tests also distinguish clearly between open-sided and cylindrical bore magnet designs. The imaging speed parameter is presented over the last 10 years and clearly reflects the rapid development in computer data processing and gradient performance within MRI. (C) 2002 Wiley Periodicals, Inc.