Cardiac Vibration Signals
The pulsatile phenomena of the body’s surface with every heart beat have attracted the attention of physicians since the beginning of medicine. Precordial examination or cardiac examination is performed as part of the regular physical examination for the purpose of the detection of cardiovascular pathologies. These tests include palpation and auscultation. With palpation, the pulsations of the heart and great arteries that are transmitted to the chest wall are qualitatively assessed through tactile observations. The main context of these project are the study of methods that quantifies these pulsations and records the acceleration, velocity, or displacement of specific points on the body or the platform on which the body lies, caused by these pulsations. These low frequency signals have been shown to have correspondences to contractility and mechanical performance of the heart as a pump, and can be used as tools in non-invasive cardiology. In particular Seismocardiogrm and Ballistocardiogram are studied.