A method and apparatus for estimating the propagation time of an aortic pulse (aortic PTT) from a time difference measured between a plurality of reference points of a cardiac elastic diagram (BCG wave).
A method for predicting the pulse propagation time (PTT) of an aorta from a time difference measured between a plurality of reference points of a cardiac elastic diagram (BCG wave) is provided. A time difference between first and second reference points of the BCG wave is measured, and a PTT is predicted from the time difference. The PTT directly corresponds to a detected time difference between the first and second reference points, or the PTT is a time difference between the PTT and the first and second reference points of a BCG wave. The relationship is obtained by calibrating the time difference in another way to obtain PTT. [Selection] Figure 1【課題】心弾動図（ＢＣＧ波）の複数の基準点の間で測定された時間差から大動脈の脈拍伝搬時間（ＰＴＴ）を予測する方法を提供する。【解決手段】 前記ＢＣＧ波の第１と第２の基準点の間の時間差を測定し、前記時間差からＰＴＴを予測する。前記ＰＴＴは、検出された前記第１と第２の基準点の間の時間差に直接対応する、又は前記ＰＴＴは、前記ＰＴＴと、ＢＣＧ波の前記第１と第２の基準点の間の時間差との間の関係を用いて得られ、前記関係は、ＰＴＴを得る他の方法で前記時間差の校正することにより得られる。【選択図】 図１
