| 摘要 |
PROBLEM TO BE SOLVED: To provide a living body magnetic field source analyzing method capable of analyzing a magnetic field source by measuring a vertical component BZ of a living body magnetic field without increasing the number of detecting coils. SOLUTION: This living body magnetic field source analyzing method is provided with a process of determining an equal magnetic field chart connecting equal points of a value at optional time (t) by determining the value in proportion to a square root of the square sum [S(x, y, t)= (BZ(x, y, t)/ x)2)+(BZ(x, y, t)/ y)2}] of a rate of change in the (x) direction and that in the (y) direction of a magnetic field component BZ(x, y, t) vertical to a living body surface of a living body magnetic field generated from a living body 2 by being detected by plural fluxmeters composed of a quantum interference element SQUID by using a plane parallel to the living body surface as an (x, y) plane of rectangular coordinates and the direction vertical to the living body surface as the (z) axis of the rectangular coordinates, a process of displaying the equal magnetic field chart on a display and a process of inputting the number of peaks of the equal magnetic field chart and position data on the peaks as the number of magnetic field sources and initial values of positions of the magnetic field sources for solving an inverse problem for estimating positions and intensities of the magnetic field sources in the living body. Accordingly, since positions of plural current sources in a living body can be directly read from an equal magnetic field chart, an inverse problem can be easily solved. |
