Definition : Cardiographs designed to measure and record data and graphics (i.e., a ballistocardiogram) of the external movements of the body caused by thrust of the heart during systolic ejection of the blood. Ballistocardiographs were originally based on devices such as dedicated tables and chairs capable of measuring the displacement of the body caused by the heart function; some devices were also capable of measuring velocity (i.e., displacement first derivative). Lightweight small devices (known as digital ballistocardiographs and also as seismographs) based on sensors that measure the acceleration of the body movement are currently used, especially for detecting early cardiac abnormalities and to characterize particular diseases.
Entry Terms : "Displacement Cardiographs"
UMDC code : 10266