Templeton A W, Dwyer S J, Cox G G, Lee K R, Johnson J A, Martin N L, Chang C H, Anderson W H, Hensley K S, Bialek J
AJR Am J Roentgenol. 1987 Oct;149(4):847-51. doi: 10.2214/ajr.149.4.847.
We have successfully interfaced an advanced microcomputer system to a 47-cm image intensifier for direct digital radiology. Our development effort has included the design and construction of hardware and the implementation of software. The system matrix (spatial resolution) is 1024 X 1024 and contrast resolution is 8 bits deep. A receiver-operator-characteristic analysis comparing conventional and digital laser chest radiographs for the detection of lung nodules demonstrated no statistical difference. Dosimetry measurements identified decreased patient dose. The intensifier-based digital imaging system is being increasingly used for a variety of examinations including IV pyelograms, all kinds of barium studies, and skeletal, trauma, and chest studies. Hard-copy laser-printed digital images with "bones black" are preferred by the radiology staff and have been well accepted by referring clinicians.
我们已成功地将一个先进的微型计算机系统与一台47厘米的影像增强器连接，用于直接数字放射学。我们的开发工作包括硬件的设计与构建以及软件的实施。系统矩阵（空间分辨率）为1024×1024，对比度分辨率为8位深度。一项比较传统胸部X光片和数字激光胸部X光片对肺结节检测的接收者操作特征分析表明，二者在统计学上没有差异。剂量测定结果显示患者剂量有所降低。基于影像增强器的数字成像系统正越来越多地用于各种检查，包括静脉肾盂造影、各种钡剂造影检查以及骨骼、创伤和胸部检查。放射科工作人员更喜欢带有“骨骼黑色显示”的硬拷贝激光打印数字图像，这些图像也已被转诊的临床医生广泛接受。
