Image quality control for digital mammographic systems: initial experience and outlook.
Image quality control for digital mammographic systems: initial experience and outlook.
复制标题
数字乳腺X线摄影系统的图像质量控制：初步经验和展望。
DOI：
10.1007/bf03168128
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发表时间：
1995
影响因子：
4.4
通讯作者：
Krupinski,E
中科院分区：
文献类型：
--
作者：
Roehrig,H;Yu,T;Krupinski,E
本报告介绍(1)广泛的专题回顾和关于数字系统图像质量控制(IQC)可能性的教程，以及(2)使用两种商用数字成像系统进行IQC的结果和初步经验，但对任何特定方法的讨论都很有限。亚利桑那大学对用于乳房X光摄影引导数字立体定向乳腺活检的数字成像系统进行了广泛的评估。测量了线性度、灵敏度、信噪比和方波调制。评估了体模的图像，如美国放射学会认可体模和对比细节乳房X光照相体模，以及X射线源焦点的图像。评估还包括成像系统的阴极射线管。收集的数据表明，与胶片-屏幕系统相比，数字成像系统具有重要的优势，因为它们提供了可用于定量分析的数字信号输出。因此，IQC可以成为比目前实践更定量的学科，提供关于正在评估的成像系统的更多信息，并在实际操作过程中更好地控制它们的属性。
This report presents (1) a broad topical review and a tutorial of the possibilities for image quality control (IQC) with digital systems, and (2) results and initial experience for IQC with two commercial digital imaging systems, but with limited discussion on any particular method. Digital imaging systems used for mammographically guided digital stereotactic breast biopsy were evaluated extensively at the University of Arizona. Measurements were made of linearity, sensitivity, signal-to-noise ratio, and square-wave modulation. Images of phantoms such as the American College of Radiology Accreditation Phantom and the contrast detail mammography Phantom were evaluated as well as images of the x-ray source’s focal spot. The evaluation also included the cathode ray tubes for the imaging systems. The data collected show that digital imaging systems have an important advantage over film-screen systems because they provide a digital signal as output that can be used for quantitative analysis. As a result, IQC can become a much more quantitative discipline than presently practiced, providing more information on the imaging systems under evaluation, and providing better control over their properties during actual operation.