PROBLEM TO BE SOLVED: To reduce the time for ultrasound measurement to be performed at pulse wave propagation speed measurement.SOLUTION: Provided is a pulse wave propagation speed measuring device, comprising: an ultrasound unit transmitting a two-dimensional plane wave to an artery and receiving a reflected wave； and an operation processing part processing the received signal of the reflected wave. The operation processing part performs the steps of: performing received beam forming based on the reception signal of the reflected wave and selecting a first vessel position and a different second vessel position of the artery in the longitudinal direction； detecting a first vessel diameter change timing of the artery at the first vessel position and a second vessel diameter change timing of the artery at the second vessel position； and measuring a pulse wave propagation speed using the first vessel diameter change timing and the second vessel diameter change timing.SELECTED DRAWING: Figure 18COPYRIGHT: (C)2018,JPO&INPIT【課題】脈波伝播速度の測定に際して行う超音波測定に要する時間の短縮化を図ること。【解決手段】動脈の血管に２次元平面波を送信し、反射波を受信する超音波ユニットと、前記反射波の受信信号を信号処理する演算処理部と、を備え、前記演算処理部は、前記反射波の受信信号に基づいて受信ビームフォーミングを行い、前記血管の長軸方向における位置が異なる第１の血管位置および第２の血管位置を選択することと、前記第１の血管位置における前記血管の第１の血管径変動タイミング、および、前記第２の血管位置における前記血管の第２の血管径変動タイミングを検出することと、前記第１の血管径変動タイミングと、前記第２の血管径変動タイミングとを用いて脈波伝播速度を測定することと、を行う脈波伝播速度測定装置である。【選択図】図１８
