Source:http://linkedlifedata.com/resource/umls/id/C0179202
SPN: A ballistocardiograph is a device, including a supporting structure on which the patient is placed, that moves in response to blood ejection from the heart. The device often provides a visual display.,UMD: Cardiographs used for recording the motion of the body -toward the head and toward the feet- caused by the thrust of the heart during systolic ejection of the blood. The patient is placed on a special table that is so delicately balanced that vibrations of the body can be sensed by a transducer that reproduces its characteristics in a ballistocardiogram. They are used in measuring cardiac output and the force of contraction of the heart.