Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [5] using electrodes placed on the skin.

2023年6月6日 · Whether during routine examinations or heart diagnostics, many people have already had an electrocardiogram (ECG or EKG). But what does it actually measure, and what does the ECG curve show us? Our nerve and muscle cells communicate with each other using electrical and chemical signals.

Comprehensive tutorial on ECG interpretation, covering normal waves, durations, intervals, rhythm and abnormal findings. From basic to advanced ECG reading. Includes a complete e-book, video lectures, clinical management, guidelines and much more.

2011年1月1日 · ECG signals are reflective of electric activities of a heart muscle. They are related to a variety of intertwined and complex chemical, electrical, and mechanical processes present in heart.

2024年4月2日 · An electrocardiogram (ECG or EKG) is a quick test to check the heartbeat. It records the electrical signals in the heart. Test results can help diagnose heart attacks and irregular heartbeats, called arrhythmias. ECG machines can be found in medical offices, hospitals, operating rooms and ambulances.

2024年9月29日 · Electrocardiogram, commonly known as ECG or EKG is a medical test report indicating the heart’s electrical activity and rhythm during repeated cardiac cycles. It is printed on grid paper called the ECG strip or ECG tracing. The process of producing an electrocardiogram is termed electrocardiography.

2011年3月5日 · An overview of ECG interpretation, including the different components of a 12-lead ECG, cardiac axis and lots more.

The electrocardiogram (ECG) records from the body surface and registers the differences in electrical potential generated by the heart. The signal recorded is determined by action potentials generated by millions of individual cells and their sequence of activation.

Signal averaging of QRS waveforms creates a digital composite of several hundred cardiac cycles to detect high-frequency, low-amplitude potentials and microcurrents at the terminal part of the QRS complex. These findings represent areas of slow conduction through abnormal myocardium, indicating increased risk of reentrant ventricular tachycardia.

2025年3月17日 · 例如，深度学习在ecg信号处理中的应用越来越广泛，它能够学习ecg信号的复杂特征，并实现更准确的波形检测和噪声去除。 此外，基于云计算和大数据技术的ECG信号处理平台，能够实现大规模ECG数据的分析和管理，为心血管疾病的预防和管理提供更全面的支持。