An electrocardiogram or in short ECG (also known as EKG), is a test that measures the electrical activity of your heart. It’s a simple and painless test. An electrical signal that starts at the top of your heart and travels to the bottom triggers each heartbeat. This electrical activity is often affected by heart problems.
Small metal disks called Electrodes are placed on your skin. The electrical impulses of the heart are picked by these electrodes. These impulses are then recorded and give doctors a report of your heart’s electrical activity. The wires or leads in the electrodes are hooked up to the electrocardiogram machine (E.C.G.).
More on how ECG works.
AliveCor is a San Francisco based startup founded in the year 2010. The startup has developed a device and application that turns any smartphone into a clinical-quality electrocardiogram (ECG) recorder. The proprietary technology of AliveCor converts electrical impulses from the user’s fingertips into ultrasound signals. These signals are transmitted to the mobile device’s microphone. The signal transmission which is fast & efficient results in minimal battery drain. The FDA-approved, low-cost mobile ECGs fit over the back of an iPhone.
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