An electrocardiogram (ECG) is a test which measures the electrical activity of your heart to show whether or not it is working normally.
A Computed tomography scan is a medical imaging procedure that uses computer-processed combinations of many X-ray measurements taken from different angles.
An electrocardiogram (EKG) measures your heart's electrical activity. This noninvasive test can measure many aspects, from how fast the heartbeats.
Magnetic resonance imaging is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body.