McLaughlin S C, Aitchison T C, Yang T F, Macfarlane P W
University Department of Medical Cardiology, Royal Infirmaty, Glasgow, Scotland.
J Electrocardiol. 1994;27 Suppl:182-7. doi: 10.1016/s0022-0736(94)80089-8.
This study describes the implementation of novel techniques that have been designed with the aim of improving the repeatability of the diagnostic section of the Glasgow electrocardiographic (ECG) analysis program. Specific reference is made to the agreement in consecutive computer-assisted diagnoses of inferior myocardial infarction (IMI). Inherent repeat variation was estimated in ECG parameters of interest and used in conjunction with smoothing methods to produce a continuous Q-wave index ranging from 0 (no IMI) to 1 (IMI). A decision as to the presence or absence of IMI was then made on the basis of this smooth index. The sensitivity and specificity of the new approach remain unchanged from the conventional procedure when analyzing single ECGs. However, consistency in interpretation of day-to-day and minute-to-minute ECG interpretations was enhanced. Specific reference is made to the agreement between consecutive pairs of computer-assisted diagnoses of ECGs from the same patient with which one or both interpretations was that of IMI.
本研究描述了旨在提高格拉斯哥心电图（ECG）分析程序诊断部分可重复性而设计的新技术的实施情况。特别提及了下壁心肌梗死（IMI）连续计算机辅助诊断中的一致性。对感兴趣的ECG参数中的固有重复变异进行了估计，并与平滑方法结合使用，以产生一个从0（无IMI）到1（IMI）的连续Q波指数。然后根据这个平滑指数做出关于IMI存在与否的决定。在分析单份ECG时，新方法的敏感性和特异性与传统程序保持不变。然而，日常和逐分钟ECG解读的一致性得到了提高。特别提及了来自同一患者的连续成对ECG的计算机辅助诊断之间的一致性，其中一种或两种解读为IMI。
