PROBLEM TO BE SOLVED: To provide a vital data processing device capable of automatically producing a synthesized electrocardiographic waveform equivalent to the standard 12 lead waveform corrected in the personal difference among subjects and the displacement of electrodes based on prescribed inducted waveform data.SOLUTION: X, Y, and X component waveforms of the heart-induced electric vectors are produced from the induced waveform (S120), and plural candidate waveforms for each induced waveform are produced from a unipolar induction vector for the electrode position to be used for the standard 12 leads and a synthesized bipolar lead vector of the standard 12 leads produced by using the unipolar lead vector (S130). The interrelation between each candidate waveform and a previously stored standard waveform is found and the similarity is calculated based on the interrelation (S160). Then, the candidate waveform with the largest similarity is determined and selected as the synthesized standard induced waveform (S190).COPYRIGHT: (C)2002,JPO【課題】 所定の誘導波形情報から、被験者の個人差や電極位置のずれを補正した標準12誘導波形に相当する合成誘導心電波形を自動生成可能な生体情報処理装置を提供すること【解決手段】 誘導波形から心起電力ベクトルのX、Y、Z成分波形を生成し(S120)、標準12誘導に用いる電極位置に対する単極誘導ベクトルと、当該単極誘導ベクトルを用いて生成した標準12誘導の合成双極誘導ベクトルとから、各誘導波形毎に複数の候補波形を生成する(S130)。各候補波形と予め記憶された基準波形との相互相関を求め、相互相関に基づき類似度を算出する(S160)。そして、類似度の最も大きな候補波形を合成標準誘導波形として決定、選択する(S190)。
