公开(公告)号：WO2017102924A1

公开(公告)日：2017-06-22

申请号：PCT/EP2016/081147

申请日：2016-12-15

Applicant: UNIVERSITÄTSKLINIKUM HAMBURG-EPPENDORF

Inventor： KORDING, Fabian ,  DR. YAMAMURA, Jin ,  RUPRECHT, Christian ,  FEHRS, Kai-Kristoph

IPC: A61B8/02 ,  A61B8/08 ,  A61B5/00 ,  G01R33/567

CPC classification number: A61B8/0883 ,  A61B5/0044 ,  A61B5/055 ,  A61B5/7292 ,  A61B8/02 ,  A61B8/4494 ,  A61B8/488 ,  A61B8/5223 ,  G01R33/4814 ,  G01R33/5673

Abstract: A device for detecting the heartbeat of a patient comprises a transmitter for ultrasonic waves, a receiver for Doppler-shifted ultrasonic waves, and evaluating means configured to extract at least one time-varying frequency component (51b) from the time-dependent signal (51, 51a) delivered by the receiver and to evaluate moments t1, t2, t3, t4 of the heartbeat from the variation of at least one of the frequency components in time. In particular, a window of interest, WOI (53a, 53b, 53c, 53d), in time is determined from the variation of the at least one frequency component. The moments are then determined as the moment where the time-dependent signal (51, 51a) from the receiver assumes a maximum (b1, b2, b3, b4) within the WOI. The heartbeat may be used to trigger image acquistion, in particular in a MRI apparatus. Tracking means may be provided to determine which transmitters and/or receivers cover the heart, in particular for imaging of a fetus.

Abstract translation: 用于检测患者心跳的设备包括用于超声波的发射器，用于多普勒频移的超声波的接收器以及被配置为提取至少一个时变频率分量（51b）的评估装置， 从由接收器传递的时间相关信号（51,51a）中并且根据至少一个频率分量的时间变化来评估心跳的时刻t1，t2，t3，t4。 具体而言，根据至少一个频率分量的变化确定时间窗口WOI（53a，53b，53c，53d）。 这些矩然后被确定为来自接收机的时间相关信号（51,51a）在WOI内呈现最大值（b1，b2，b3，b4）的时刻。 心跳可以用于触发图像采集，特别是在MRI设备中。 可以提供追踪装置以确定哪些发射机和/或接收机覆盖心脏，特别是用于胎儿的成像。