Performance evaluation of a "dual-side read" dedicated mammography computed radiography system.
Performance evaluation of a "dual-side read" dedicated mammography computed radiography system.
复制标题
“双面读取”专用乳房X线照相计算机放射线照相系统的性能评估。
DOI：
10.1118/1.1584045
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发表时间：
2003
期刊：
影响因子：
3.8
通讯作者：
B. Schueler
中科院分区：
文献类型：
--
作者：
K. Fetterly;B. Schueler
The image quality of a dedicated mammography computed radiography (CR) system was characterized. A unique feature of this system is that it collects image signals from both sides of the storage phosphor. Measurements of the modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE) were made. This work included improvements in our measurement methods to specifically account for the detrimental effects of system glare on the MTF and to accurately characterize the low-frequency NPS components. Image quality measurements were performed using a 25 kVp beam filtered with 2 mm Al and an exposure range of 1 to 100 mR (87 to 870 microGy). The DQE was found to decrease with increasing exposure due to an increased contribution of storage phosphor structure noise. The DQE of this system was compared to similar measurements made using a standard CR system. The dual-side read system demonstrated superior DQE compared to the standard system. The decrease in DQE with increasing exposure was more severe for the standard system than the dual-side read system. This finding suggests that the CR system noise was reduced for the dual-side read system compared to the standard system.
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影响因子：
3.8
作者：
Vedantham, S;Karellas, A;Hendrick, RE
通讯作者：
Hendrick, RE
双屏 CR 胸部成像中信噪比和对比度噪声比的区域改善——一项模型研究。
影响因子：
3.8
作者：
Liu,X;Shaw,CC
通讯作者：
Shaw,CC
数字放射线摄影中基本成像特性的研究。
影响因子：
3.8
作者：
Giger,ML;Doi,K
通讯作者：
Doi,K
提高双屏计算机放射成像中的信噪比和对比度噪声比。
影响因子：
3.8
作者：
Shaw,CC;Wang,TP;Breitenstein,DS;Gur,D
通讯作者：
Gur,D
影响因子：
3.8
作者：
DOBBINS, JT;ERGUN, DL;CLARK, DC
通讯作者：
CLARK, DC