Variability of human-annotations of 12-lead ECG features collected using a web system: Students vs. practitioners

Introduction: The electrocardiogram (ECG) is often interpreted incorrectly with up to 33% of interpretations containing a significant error. The difficulty in ECG interpretation is two-fold; 1) it demands an extensive knowledge of cardiac physiology, and 2) the ECG inflates cognitive workload due to the complex nature of its presentation. To make a diagnosis, the reader is required to measure ECG features in order to contrast these annotations with diagnostic criteria. Whilst signal processing algorithms can provide automated measurements, they are often imprecise.
Source: Journal of Electrocardiology - Category: Cardiology Authors: Source Type: research