Wave Recognition and Measurement in an Automated Electrocardiograms Analysis System

電腦化心電圖系統之波形識別及測量

留忠賢(Chung-Shyan Liu) ； 李茂芳(Maw-Fang Lee) ； 陳慶真(Beverly C. Yu)

《Journal of Medical Sciences》 5卷2期 (1983/10) Pp. 1701-1709

摘要

在電腦化心電圖診斷系統中，需要一個軟體程式來找出並識別各種不同之波形，同時輸出一組通常稱為「測量矩陣」之數據，以供診斷分析程式使用。在我們的系統中，我們採用了Template Matching之技巧教電腦找出QRS波羣之參考點，再對此QRS波羣之形態作一分析，以取出所需要之參數；對於P波及T波，也是採取類似的方法分析。此外，我們利用「平均速度法」以決定各個波形之起點及終點。

並列摘要

A computerized ECG Analysis system requires a software program which recognizes and locates waveforms from incoming ECG signals and produces a set of data, usually called measurement matrix, for diagnostic use.For this purpose, we used a ”template matching” technique for locating a ”reference point” in the QRS complex of an ECG cycle. After finding this point, we were able to perform a complete morphological analysis of the QRS complex using computer. The same was true for analyzing P-wave and T-wave. To determine the on-set and off-set points of each waveform, a specific method, named ”averaged velocity method” was used.