IMAGE BRIGHTNESS AND RESOLUTION EFFECTS ON DIAGNOSIS

已经进行了许多研究，试图定义显示 放射学初级诊断的要求。大多数这样的研究 满足软显示器或不同图像的分辨率要求- 可提高观察者性能的处理选项。结果是 这些研究表明，当对软组织进行初步诊断时 显示时，读取器的性能低于在胶片上执行时的性能 检测包含高频信息的成像特征。 仅提到和/或处理了显示器亮度的问题 然而，在这些研究中，以一种粗略的方式，以及 分辨率和显示亮度对观察者性能的影响尚未得到 经过充分的审查。基于我们自己的数据和类似的数据 在其他机构的努力下，我们建议调查 显示亮度对阅读器性能的影响 常常是细微的异常，并评估 亮度和分辨率全面、多观察者、多视点 异常ROC研究。我们的书房设计中的具体模式和 我们将研究的异常类型应该使我们能够部分地确定 对主要感兴趣区域的“亮度细节”要求 电子成像，因为它与投影射线照相术有关 临床环境。

A number of studies have been performed in an attempt to define display requirements for primary diagnosis in radiology. Most of these studies address resolution requirements for soft displays or different image- processing options which may improve observer performance. The results of these studies show that when primary diagnosis is performed on soft display, reader performance is lower than when performed on film for the detection of imaging features which contain high-frequency information. The issue of display luminance has only been mentioned and/or dealt with in a cursory way in these studies, however, and the combined effects of resolution and display luminance on observer performance has not been adequately examined. Based on our own data and those from similar efforts at other institutions, we propose to investigate the effect of display luminance on readers' performance for the detection of specific and often subtle abnormalities and to assess the combined effect of luminance and resolution in a comprehensive, multi-observer, multi- abnormality ROC study. The specific modes in our study design and the type of abnormalities we will study should enable us to partially define "brightness detail" requirements for the region of primary interest in electronic imaging as it relates to projection radiography in the clinical environment.