NON-ROC STUDIES IN IMAGING SYSTEMS EVALUATIONS

现在在成像过程中进行的许多调查 系统的评估和比较包括解释(阅读) 受试者评估的正常和异常病例的研究 工作特性(ROC)或其衍生产品。ROC方法论 (以及它的衍生品)有许多罕见的限制 在提出成像系统的评估时进行考虑。它是 这项调查的目的是探索替代方法和 将它们的结果与使用点测量ROC获得的结果进行比较 类似评估的方法。不同的方法可以 有可能被用来得出决定性的结果，或者作为替代，他们 可用于定义感兴趣变量的范围，该变量应 将使用ROC类型的研究进行进一步研究。要做到这一点，我们将 探索各种场景，其中系统生成的图像 要么相似，要么不同。我们将探索的方法 都是非提示和提示的主观评级，只是值得注意 差分(JND)和多点排序。

Many of the investigations that are now carried out during imaging systems' evaluations and comparisons include interpretation (reading) studies of normal and abnormal cases that are evaluated by receiver operating characteristics (ROC) or derivatives thereof. ROC methodology (as well as its derivatives) has many limitations that are rarely considered when imaging systems' evaluations are proposed. It is the purpose of this investigation to explore alternative methodologies and compare their results to those obtained using a point measurement ROC methodology for similar assessments. The different methodologies could potentially be used to derive conclusive results, or alternatively, they can be used to define the range of the variable of interest that should be further investigated using an ROC-type study. To do so, we will explore a variety of scenarios where the images produced by the systems are either similar and/or different. The methodologies we will explore are both non-prompted and prompted subjective ratings, Just Noticeable Differences (JND), and multi-point rank ordering.