Dose reduction in full-field digital mammography - An anthropomorphic breast phantom study.

被引：0
|
作者：
Obenauer, S [1 ]
Hermann, KP [1 ]
Grabbe, E [1 ]
机构：
[1] Univ Gottingen, Dept Diagnost Radiol, D-37075 Gottingen, Germany
来源：
DIGITAL MAMMOGRAPHY, PROCEEDINGS | 2003年
关键词：
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The goal of this study was to evaluate the potential of radiation dose reduction in full-field digital mammography (FFDM) compared to screen-film mammography (SFM). An anthropomorphic breast phantom with superimposed microcalcifications (50-20mum) was used to evaluate the detectability of microcalcifications. Images were exposed automatically (AEC mode) using a Mo/Mo anode-filter-combination (protocol A). Dose reduction in digital mammography was achieved by using protocol B with Mo/Rh and protocol C with Rh/Rh. The detectability of microcalcifications was assessed by 3 well-experienced readers with a confidence level ranging from I to 5. A receiver operating characteristic (ROC) analysis was performed. Compared to screen-film mammography the digital mammography system allows an equivalent detection rate for microcalcifications at a lower radiation exposure.
引用
收藏
页码：145 / 148
页数：4
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