发明名称 Biomagnetic field measuring method and apparatus
摘要 A biomagnetic field measuring apparatus has a plurality of fluxmeters disposed externally of a living body and each including a superconducting quantum interference device (SQUID) for detecting a biomagnetic field generated from the living body, the plurality of fluxmeters being operative to detect a temporal change of a component of the biomagnetic field in a first direction which is vertical to the surface of the living body, an operation processor for performing computation for determining a temporal change of a value proportional to a root of square sum of differential value of the first-direction magnetic field component in second and third directions which cross the first direction and computation for integrating the temporal change of the value over a predetermined interval to determine an integral value, and a display for displaying the determined integral value. Distribution of magnetic fields generated from the heart is determined with a small number of fluxmeters.
申请公布号 US7403809(B2) 申请公布日期 2008.07.22
申请号 US20040810812 申请日期 2004.03.29
申请人 HITACHI, LTD. 发明人 TSUKADA KEIJI;KANDORI AKIHIKO;OKAJIMA KENICHI;SASABUCHI HITOSHI;SUZUKI HIROYUKI;KONDO SHOJI;KOMIYAMA YASUAKI
分类号 A61B5/05;A61B5/04;G01R33/035;G01R33/10 主分类号 A61B5/05
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