Patent ID: 6941165
Filing Date: 2005-09-06
Classification: A61B,G06T

Abstract:
1. A magnetocardiographic diagnosis apparatus for ventricular late potential, comprising: a magnetic field distribution measurement device performing a non-contact magnetic measurement on a subject's chest at a plurality of coordinates to obtain a plurality of time-series magnetic data corresponding to said plurality of coordinates, and also using said plurality of time-series magnetic data to generate time-series magnetic field distribution data on said chest; a first arithmetic device using said generated time-series magnetic field distribution data to generate data representative of a three-dimensional, intramyocardial, electrical behavior of said subject; a second arithmetic device processing separately provided, tomographic, thoracic data of said subject to generate data representative of a three-dimensional anatomical image; and a display device displaying an image of said three-dimensional, intramyocardial, electrical behavior represented by said data generated by said first arithmetic device, as superimposed on said three-dimensional anatomical image represented by said data generated by said second arithmetic device, thereby capable of three-dimensionally identifying localization of a ventricular late potential attributed to intramyocardial, un-uniform excitation conduction, wherein said data generated by said first arithmetic device and representative of said three-dimensional, intramyocardial, electrical behavior is data representative of an intramyocardial excitation conduction rate and wherein said first arithmetic device approximates by means of one or more small current element pieces a part in myocardium corresponding to an excitation conduction path and calculates a temporal variation of a position of said small current element piece to generate data representative of an intramyocardial excitation conduction rate.