ballistocardiography


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bal·lis·to·car·di·og·ra·phy

(bal-is'tō-kar'dē-og'ră-fē),
1. The graphic recording of movements of the body imparted by ballistic forces (cardiac contraction and ejection of blood, ventricular filling, acceleration, and deceleration of blood flow through the great vessels); these minute movements are amplified and recorded on moving chart paper after being translated into an electrical potential by a pickup device.
2. The study and interpretation of ballistocardiograms.

ballistocardiography

[balis′tōkär′dē·og′rəfē]
the recording of body movements in reaction to the beating of the heart and the circulation of the blood.

ballistocardiography

A technique for producing a graphical representation of repetitive motions of the body evoked by the mechanical ejection of blood from the ventricles into the great vessels with each heart beat. It is a vital sign in the 1–20-Hz frequency range and can be recorded by noninvasive methods on the skin surface.