Heart motion visualized from chest vibration based on multi-channel signal processing

As there are various difficulties associated with auscultation techniques, it is needed to develop new technique for assisting the understanding of heartbeat for both doctors and patients. A new device for sensing vibration of the chest and signal/image processing software for visualizing heart motion and blood flow has developed. This technique is based on the measurement of chest vibration using 64 sensors as a multiple-auscultator to show global and simultaneous heart motions. The total measurement time was five minutes approximately using a new mount plate with 64-sensor, which allows to clinical use easily. We expect that the technique can be applied to the detection of heart disease in visual and to the digital database management of the auscultation examination.