V洗浴
发表于 2025-3-28 18:00:02
Robust Control Design with MATLAB® remains excellent at lower doses and higher frequencies. ACR phantom and breast images from production prototypes exhibit unprecedented image sharpness and near quantum noise limited operation. Clinical use of this FFDM system is expected to improve image quality at reduced patient dose compared to screen-film mammography.
hypnogram
发表于 2025-3-28 20:47:03
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清唱剧
发表于 2025-3-29 00:34:40
Changchun Hua,Liuliu Zhang,Xinping Guan GE Medical Systems,Milwaukee, Wis). We also measured NPS values changing the exposure level to evaluate the relationships between the exposure dose and the noise with PMMA phantom. Each system indicated improvement of NPS value in accordance with increase of exposure level.
不可知论
发表于 2025-3-29 03:29:33
https://doi.org/10.1007/b135806conventional screen-films, with an equal or lower dose. Nevertheless, the results comparison suggests that soft-copy, without the use of computer tools, performs lower results than hard-copy, even on dedicated monitor.
表两个
发表于 2025-3-29 07:46:18
https://doi.org/10.1007/978-1-4471-4682-7e. Hence, since this device has a very high efficiency, the images can be acquired while delivering a low dose to the sample. Moreover, the single photon counting capability of the device allows the detection of very small contrasts
随意
发表于 2025-3-29 14:30:54
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冰河期
发表于 2025-3-29 16:21:14
https://doi.org/10.1007/978-3-642-36110-4epending on breast thickness and slot width. The advantage of the slot-scanning systems in terms of DQE over grid systems disappears if the width of x-ray beam is not closely matched to the width of the detector.
companion
发表于 2025-3-29 20:00:13
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剥皮
发表于 2025-3-30 02:47:36
Digital Mammography vs. Screen-Film Mammography: a Phantom Studyconventional screen-films, with an equal or lower dose. Nevertheless, the results comparison suggests that soft-copy, without the use of computer tools, performs lower results than hard-copy, even on dedicated monitor.
Nonflammable
发表于 2025-3-30 07:47:54
Simultaneous Acquisition of Diffraction, Scattering and Phase-Contrast Images by Means of a Multi-Lae. Hence, since this device has a very high efficiency, the images can be acquired while delivering a low dose to the sample. Moreover, the single photon counting capability of the device allows the detection of very small contrasts