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AliveCor is a medical device and AI company that develops ECG hardware and software compatible with consumer mobile devices to enable remote heart rhythm monitoring and detection of abnormal heart rhythms, or arrhythmias. [4] [5] AliveCor was founded in 2011 and is headquartered in Mountain View, California, the United States.
Cardiac monitoring is usually carried out using electrocardiography, which is a noninvasive process that records the heart's electrical activity and displays it in an electrocardiogram. [1] It is different from hemodynamic monitoring, which monitors the pressure and flow of blood within the cardiovascular system.
The manufacturing industries of ECG machines is now entirely digital, and many models incorporate embedded software for analysis and interpretation of ECG recordings with 3 or more leads. Consumer products, such as home ECG recorders for simple, 1-channel heart arrhythmia detection, also use basic ECG analysis, essentially to detect abnormalities.
The Pan–Tompkins algorithm [1] is commonly used to detect QRS complexes in electrocardiographic signals ( ECG ). The QRS complex represents the ventricular depolarization and the main spike visible in an ECG signal (see figure). This feature makes it particularly suitable for measuring heart rate, the first way to assess the heart health state.
003878. [ edit on Wikidata] A cardiac stress test is a cardiological examination that evaluates the cardiovascular system's response to external stress within a controlled clinical setting. This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate. [1]
Wireless ambulatory electrocardiography (ECG) is a type of ambulatory electrocardiography with recording devices that use wireless technology, such as Bluetooth and smartphones, for at-home cardiac monitoring (monitoring of heart rhythms). These devices are generally recommended to people who have been previously diagnosed with arrhythmias and ...
Accelerated idioventricular rhythm is a ventricular rhythm with a rate of between 40 and 120 beats per minute. Idioventricular means “relating to or affecting the cardiac ventricle alone” and refers to any ectopic ventricular arrhythmia. [1] Accelerated idioventricular arrhythmias are distinguished from ventricular rhythms with rates less ...
In electrocardiography, the ST segment connects the QRS complex and the T wave and has a duration of 0.005 to 0.150 sec (5 to 150 ms). It starts at the J point (junction between the QRS complex and ST segment) and ends at the beginning of the T wave. However, since it is usually difficult to determine exactly where the ST segment ends and the T ...