| ballistocardiograph | Instrument for taking a ballistocardiogram, consisting either of a moving table suspended from the ceiling, or of an apparatus that rests upon the patient's body, usually on the shins, together with a graphic recording system. (05 Mar 2000) |
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| ballistocardiography | Technique of graphic representation of the movements of the body imparted by the ballistic forces (recoil and impact) associated with cardiac contraction and ejection of blood and with the deceleration of blood flow through the large blood vessels. These movements, quantitatively very minute, are translated by a pickup device (transducer) into an electrical potential which is suitably amplified and recorded on a conventional electrocardiograph or other recording machine. (12 Dec 1998) |