《1986尘肺诊断标准》读片重复性的研究

为了验证《1986尘肺诊断标准》的读片重复性,作者用集体读片方式分析读片差异、分析原因。 两次该片诊断符合程度75％;小阴影形态70％;密集度75％;分布范围65％;大阴影、胸膜斑、小阴影聚集及弥漫胸膜增厚则完全相符。 影响诊断结果相符程度的主要因素是密集度判定差异。产生差异的原因可能与标准片对比方法、胸片示局部小阴影密集度较高及混合形态阴影对判定的影响等因素有关。

Intra-variation within a observer group in the application of 1986 Chinese Classification of Pneumoconioses

Pneumoconiosis is recognized by certainfairly distinctive roentgenographic appearancesand a dust-exposure history. Film readingcan easily be done under the guidance of awell designed classification system and a setof standard films, However, the variation ofresulis does exist among the observerswithin the expert group. This study is anattempt to determine the degree and chara-cteristics of intra-variation in filmreadingwithin a certain group of observers.