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用于人类乳腺癌参数磁共振成像映射的半自动后处理系统的实现

Implementation of a semi-automated post-processing system for parametric MRI mapping of human breast cancer.

作者信息

Lee Robert E, Welch E Brian, Cobb Jared G, Sinha Tuhin, Gore John C, Yankeelov Thomas E

机构信息

Vanderbilt University Institute of Imaging Science, 1161 21st Ave. S. AA 1105 MCN, Nashville, TN 37232-2310, USA.

出版信息

J Digit Imaging. 2009 Aug;22(4):424-36. doi: 10.1007/s10278-008-9123-2. Epub 2008 Apr 30.

Abstract

Magnetic resonance imaging (MRI) investigations of breast cancer incorporate computationally intense techniques to develop parametric maps of pathophysiological tissue characteristics. Common approaches employ, for example, quantitative measurements of T (1), the apparent diffusion coefficient, and kinetic modeling based on dynamic contrast-enhanced MRI (DCE-MRI). In this paper, an integrated medical image post-processing and archive system (MIPAS) is presented. MIPAS demonstrates how image post-processing and user interface programs, written in the interactive data language (IDL) programming language with data storage provided by a Microsoft Access database, and the file system can reduce turnaround time for creating MRI parametric maps and provide additional organization for clinical trials. The results of developing the MIPAS are discussed including potential limitations of the use of IDL for the application framework and how the MIPAS design supports extension to other programming languages and imaging modalities. We also show that network storage of images and metadata has a significant (p < 0.05) increase in data retrieval time compared to collocated storage. The system shows promise for becoming both a robust research picture archival and communications system working with the standard hospital PACS and an image post-processing environment that extends to other medical image modalities.

摘要

乳腺癌的磁共振成像(MRI)研究采用计算密集型技术来生成病理生理组织特征的参数图。常见方法包括,例如,对T(1)、表观扩散系数进行定量测量,以及基于动态对比增强MRI(DCE-MRI)的动力学建模。本文介绍了一种集成的医学图像后处理与存档系统(MIPAS)。MIPAS展示了如何使用交互式数据语言(IDL)编程语言编写图像后处理和用户界面程序,并由Microsoft Access数据库和文件系统提供数据存储,从而减少创建MRI参数图的周转时间,并为临床试验提供额外的组织架构。文中讨论了开发MIPAS的结果,包括在应用框架中使用IDL的潜在局限性,以及MIPAS设计如何支持向其他编程语言和成像模态的扩展。我们还表明,与并置存储相比,图像和元数据的网络存储在数据检索时间上有显著增加(p < 0.05)。该系统有望成为一个强大的研究图像存档与通信系统,与标准医院PACS协同工作,并成为一个扩展到其他医学图像模态的图像后处理环境。

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