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.

2023年6月5日 · The electrocardiogram (abbreviated as ECG or EKG) represents an electrical tracing of the heart and is recorded non-invasively from the surface of the body. The word ECG derives from the German language.

2024年4月2日 · ECG test results can help your care team diagnose: Irregular heartbeats, called arrhythmias. A previous heart attack. The cause of chest pain. For example, it may show signs of blocked or narrowed heart arteries. An ECG also may be done to learn how well a pacemaker and heart disease treatments are working. You may need an ECG if you have:

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.

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.

2020年2月13日 · Let’s start off with the most basic question: what is an ECG? The simplest answer is that it’s a noninvasive method of measuring the heart’s electrical activity during the cardiac cycle. Doctors can see how long an electrical signal takes to pass through the heart, and how big the changes in voltage are as it does so.

4 天之前 · ECG lead placement and what each lead shows. A standard 12-lead ECG utilises 10 electrodes strategically placed on the patient’s body to provide different views of the heart’s electrical activity. These leads are divided into: Limb leads (I, II, III, aVR, aVL, aVF): These view the heart in the vertical plane.

Learn the principles of cardiac physiology, electrocardiography and ECG interpretation. The action potential and conduction system are also discussed.

2024年12月31日 · Our ECG Case Collection contains over 85 cases to help you recognise common ECG abnormalities. Each case study includes a detailed explanation to help you master complex topics such as Wolff-Parkinson-White and Brugada syndrome. Our comprehensive guide on how to read an ECG covers how to interpret ECGs using a systematic approach.