| 摘要 |
PURPOSE:To align a current dipole group and a tomographic image easily and accurately by deciding the position of a high-frequency oscillating coil with the position of a marker used as a reference, obtaining the positional relation between the current dipole group and the high-frequency oscillating coil, and overlapping the tomographic image and the current dipole group based on the position of the high-frequency oscillating coil. CONSTITUTION:A high-frequency oscillating coil 2 is fitted at the preset position of a head band used as a marker and generates the high-frequency magnetic field based on the signal sent from a computer 11. A SQID fluxmeter 3 converts the magnetic field detected by a detecting coil 1 into the electric signal and feeds it to a high-pass filter 4 and a low-pass filter 5. The electric signals passing through the high-pass filter 4 and the low-pass filter 5 are stored in data memories 6, 7. The computer 11 estimates a current dipole group for the measured brain magnetic field based on the data from the data memories 6, 7 and overlaps the current dipole group on the tomographic image of a head section obtained by an image diagnostic device 8. |
