心臓表面興奮伝播の計測・表示システムの開発

概要

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A heart surface mapping is used to display the heart surface excitation propagation. The heart surface mapping draws the conduction equitime lines on the measured heart surface potentials, which is essential for identifying abnormal portion in the heart arrhythmia. It is also useful for the analysis of the arrhythmia mechanism associated with the abnormalities of the intracardiac propagation of excitation. However, most of the present mapping systems are very timeconsuming for drawing the heart surface mapping. We developed the new heart surface mapping display system with the features : (1) twelve heart surface potentials are measured simultaneously at one heart beat, and (2) the heart surface mapping can be displayed in real time. The satisfactory mapping results by several dog experiments were obtained for each of normal and abnormal heart conditions. Especially, the mapping results for the ventricular tachycardia induced by the extrastimulus indicates that the origin of ventricular tachycardia is detectable by use of this system.
社団法人精密工学会の論文
1989-05-05