A comparison of the imaging properties of CCD-based devices used for small field digital mammography.

A comparison of the imaging properties of CCD-based devices used for small field digital mammography.
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用于小视场数字乳腺 X 线摄影的基于 CCD 的设备的成像特性比较。

DOI:
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发表时间:
2002
影响因子:
3.5
通讯作者:
M. Payne
M. Payne
中科院分区:
工程技术2区
文献类型:
--
作者:
D. Evans;A. Workman;M. Payne

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比较了三种采用电荷耦合器件(CCD)的小视场数字乳腺X射线摄影(SFDM)系统在空间分辨率和信噪比方面的客观成像特性。结果表明,虽然它们被设计用于名义上相同的任务,立体定位和斑点成像,这些探测器有显着不同的物理成像性能。成像系统的设计参数,如荧光屏的类型和厚度,屏幕配置和方法的光学耦合的磷光体的CCD的检测器的成像性能有显着的影响。
The objective imaging characteristics of three systems that use charge coupled devices (CCD) for small-field digital mammography (SFDM) have been compared in terms of spatial resolution and signal to noise ratio. The results indicate that although they are designed for nominally the same tasks of stereotactic localization and spot imaging these detectors have significantly differing physical imaging properties. Imaging system design parameters such as the phosphor screen type and thickness, screen configuration and method of optically coupling the phosphor to the CCD have significant effects on the imaging performance of the detectors.
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发表时间: 2000-03-01
期刊: MEDICAL PHYSICS
影响因子: 3.8
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