Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography.
Modeling, validation and application of a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography.
复制标题
用于线性槽扫描数字乳房X线摄影的数学组织等效乳房模型的建模、验证和应用。
DOI：
10.1088/0031-9155/54/6/009
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发表时间：
2009
影响因子：
3.5
通讯作者：
Douglas,TS
中科院分区：
文献类型：
--
作者：
Hussein,K;Vaughan,CL;Douglas,TS
本文提出了一种用于线性狭缝扫描数字乳腺摄影的数学组织等效乳房体模。最近开发的原型线性狭缝扫描数字乳腺X射线摄影系统用于模型验证;计算图像质量指标，如图像对比度和对比度噪声比。结果与使用乳房摄影设计的物理乳房等效体模测量的值吻合良好。数学模型的估计像素强度、模数转换增益和探测器加性噪声与测量值吻合良好，相关性接近1。该模型的应用程序，检查使用单色滤波器的剂量减少和提高图像质量的狭缝扫描数字乳腺X射线摄影的可行性。
This paper presents a mathematical tissue-equivalent breast phantom for linear slot-scanning digital mammography. A recently developed prototype linear slot-scanning digital mammography system was used for model validation; image quality metrics such as image contrast and contrast-to-noise ratio were calculated. The results were in good agreement with values measured using a physical breast-equivalent phantom designed for mammography. The estimated pixel intensity of the mathematical phantom, the analogue-to-digital conversion gain and the detector additive noise showed good agreement with measured values with correlation of nearly 1. An application of the model, to examine the feasibility of using a monochromatic filter for dose reduction and improvement of image quality in slot-scanning digital mammography, is presented.