Morgun O N, Nemchenko K E, Rogov Iu V
Med Tekh. 2003 Sep-Oct(5):6-9.
A quantitative parameter characterizing the differences between the set-size object distinguishability and contrast at a preset dose is offered for use as an alternative to the comparative techniques systems currently used in visualizing the X-ray images. The parameter of threshold contrast distinguishability contains data on the quant efficiency of system detection. Noteworthily, the threshold contrast distinguishability, unlike the quant efficiency detection, enables a sufficiently simple experimental determination.
提出了一个定量参数,用于表征在预设剂量下集合大小物体可区分性和对比度之间的差异,以替代目前用于X射线图像可视化的比较技术系统。阈值对比度可区分性参数包含系统检测的量化效率数据。值得注意的是,与量化效率检测不同,阈值对比度可区分性能够通过足够简单的实验来确定。