PROBLEM TO BE SOLVED: To obtain at one time and highly accurately a local absolute value of an electrical characteristic value originated from a blood flow by eliminating influences of respiration and heart beat.SOLUTION: An electrical impedance tomographic image measuring apparatus includes: a first extracting means 41 which measures a second electric potential difference (Dmean(t)) generated in an outputting pair electrode, separates it into a respiration originating component and a heart beat originating component, detects a specified respiration condition from the respiration originating component of the second electric potential difference, detects a specified heart beat condition, and extracts a plurality of second electric potential differences under the specified respiration condition a second extracting means 42 which synchronously adds a plurality of the second electric potential differences extracted by the first extracting means based on a specified heart beat timing and removes the respiration originating component therefrom and a determining means 43 which estimates an absolute optimum electric characteristic value originated from the blood flow corresponding to respective pixels by using the second electric potential difference from which the respiration originating component is removed.COPYRIGHT: (C)2012,JPO&INPIT【課題】呼吸と心拍の影響を除去し、血流由来の電気的特性値の局所的な絶対値を一意で高精度に得る。【解決手段】出力ペア電極に発生する第二の電位差(Dmean(t))を測定し、呼吸由来成分と心拍由来成分に分離し、第二の電位差の呼吸由来成分から、所定呼吸状態を検出し、所定心拍状態を検出し、所定呼吸状態にある複数の第二の電位差、を抽出する第一の抽出手段41と、前記第一の抽出手段により抽出された複数の第二の電位差を所定心拍タイミングに基づいて同期加算し、呼吸由来成分が除去された第二の電位差、を抽出する第二の抽出手段42と、前記呼吸由来成分が除去された第二の電位差を用いて、各画素に対応した血流由来の絶対的な最適電気的特性値を推定する決定手段43とを備える。【選択図】図1
