ELECTRICAL IMPEDANCE TOMOGRAPHIC IMAGE MEASURING DEVICE OF LIVING BODY

摘要

PROBLEM TO BE SOLVED: To uniquely obtain an absolute value of an electrical characteristic value locally suitable for an actual measurement value.;SOLUTION: The electrical impedance tomographic image device of a living body comprises: a mathematical model creating unit 34 which varies the electrical characteristic value of each mesh at which a cross section of a living body is divided into a plurality of pieces into a plurality of values, and creates a mathematical model which is not smaller than operable three dimensions; a constant current applying unit 21; a calculator 35 which varies the electrical characteristic value of an optional mesh into a plurality of values (n) by using the mathematical model, and calculates a plurality of generated numbers (n) of first potential differences when applied with a constant current; a measuring means 22 which actually measures second potential differences generated at output paired electrodes; a calculator 37 which calculates the plurality of electrical characteristic values corresponding to each pigment by using the plurality of numbers (n) of the first potential differences and the second potential differences; a determination unit 38 which estimates and determines the absolute value of the most suitable electrical characteristic value in each pigment from the electrical characteristic values; and a tomographic image display controller 39 which displays a tomographic image on the basis of the most suitable electrical characteristic value.;COPYRIGHT: (C)2012,JPO&INPIT