公开(公告)号：US08672849B2

公开(公告)日：2014-03-18

申请号：US13322544

申请日：2010-08-27

申请人： Fabio Andreuccetti ,  Piero Tortoli

发明人： Fabio Andreuccetti ,  Piero Tortoli

IPC分类号： A61B8/08

CPC分类号： G01S15/8913 ,  A61B8/06 ,  A61B8/0816 ,  A61B8/13 ,  A61B8/463 ,  A61B8/488 ,  G01S7/52066 ,  G01S15/8927 ,  G01S15/8984

摘要： A method for ultrasonic detection and imaging of hemodynamic information includes the steps of transmitting ultrasonic pulses into a body, which are generated by an array of electro-acoustic transducers arranged in a predetermined order and design; receiving reflected pulses with an array of receiving electro-acoustic transducers, which generate receive signals upon stimulation of the reflected pulses, the succession of pulses transmitted to or received from the body being focused along one or more scan lines; generating a Doppler frequency shift signal resulting from the reflection of pulses transmitted by a blood flow into a vessel intersected by the scan line, in a point and along the scan line, or along a direction of propagation of a pulse; determining the direction of blood flow velocity from the average frequency value of Doppler shift frequencies; and displaying the direction of blood flow velocity by graphical and/or chromatic representation differentiating opposite directions.

摘要翻译： 一种用于血液动力学信息的超声波检测和成像的方法包括以下步骤：将超声波脉冲发射到体内，其通过以预定顺序和设计布置的电声换能器阵列产生; 接收具有接收电声换能器阵列的反射脉冲，其在刺激反射脉冲时产生接收信号，传送到身体或从身体接收的脉冲的一连串沿着一条或多条扫描线聚焦; 产生多普勒频移信号，所述多普勒频移信号是由血流传输到与扫描线相交的血管中的脉冲的反射产生的，沿着扫描线或沿着脉冲的传播方向; 从多普勒频移的平均频率值确定血流速度的方向; 以及通过区分相反方向的图形和/或彩色表示来显示血流速度的方向。

公开(公告)号：US20120089027A1

公开(公告)日：2012-04-12

申请号：US13322544

申请日：2010-08-27

申请人： Fabio Andreuccetti ,  Piero Tortoli

发明人： Fabio Andreuccetti ,  Piero Tortoli

IPC分类号： A61B8/14

CPC分类号： G01S15/8913 ,  A61B8/06 ,  A61B8/0816 ,  A61B8/13 ,  A61B8/463 ,  A61B8/488 ,  G01S7/52066 ,  G01S15/8927 ,  G01S15/8984

摘要： A method for ultrasonic detection and imaging of hemodynamic information includes the steps of transmitting ultrasonic pulses into a body, which are generated by an array of electro-acoustic transducers arranged in a predetermined order and design; receiving reflected pulses with an array of receiving electro-acoustic transducers, which generate receive signals upon stimulation of the reflected pulses, the succession of pulses transmitted to or received from the body being focused along one or more scan lines; generating a Doppler frequency shift signal resulting from the reflection of pulses transmitted by a blood flow into a vessel intersected by the scan line, in a point and along the scan line, or along a direction of propagation of a pulse; determining the direction of blood flow velocity from the average frequency value of Doppler shift frequencies; and displaying the direction of blood flow velocity by graphical and/or chromatic representation differentiating opposite directions.

摘要翻译： 一种用于血液动力学信息的超声波检测和成像的方法包括以下步骤：将超声波脉冲发射到体内，其通过以预定顺序和设计布置的电声换能器阵列产生; 接收具有接收电声换能器阵列的反射脉冲，其在刺激反射脉冲时产生接收信号，传送到身体或从身体接收的脉冲的一连串沿着一条或多条扫描线聚焦; 产生多普勒频移信号，所述多普勒频移信号是由血流传输到与扫描线相交的血管中的脉冲的反射产生的，沿着扫描线或沿着脉冲的传播方向; 从多普勒频移的平均频率值确定血流速度的方向; 以及通过区分相反方向的图形和/或彩色表示来显示血流速度的方向。

公开(公告)号：US07591787B2

公开(公告)日：2009-09-22

申请号：US11227662

申请日：2005-09-15

申请人： Piero Tortoli

发明人： Piero Tortoli

IPC分类号： A61B1/00 ,  A61B5/02 ,  A61B6/08 ,  A61B8/06

CPC分类号： A61B8/06 ,  A61B8/4483 ,  G01S15/8979 ,  G01S15/8984

摘要： A method of measuring blood flow including several steps. In an initial step a first ultrasound beam is oriented in a direction substantially perpendicular to the direction of the blood flow to be measured. Next, the Doppler spectrum obtained from the backscattered echoes of said first ultrasound beam is measured. Subsequently, the ultrasound beam is reoriented so that the Doppler spectrum of the backscattered echoes of the ultrasound beam is substantially symmetrical around the zero frequency. The Doppler frequency of the backscattered echoes of a second ultrasound beam oriented at a fixed angle to the first ultrasound beam is then measured. Finally, the rate of blood flow is calculated based on the angle between the ultrasound beams and the measured Doppler frequency of the backscattered echoes of the second ultrasound beam.

摘要翻译： 一种测量血流的方法，包括几个步骤。 在初始步骤中，第一超声波束在基本上垂直于待测血流方向的方向上定向。 接下来，测量从所述第一超声波束的后向散射回波获得的多普勒频谱。 随后，超声波束被重新定向，使得超声波束的背向散射回波的多普勒频谱围绕零频率基本上对称。 然后测量与第一超声波束以固定角度定向的第二超声波的后向散射回波的多普勒频率。 最后，基于超声波束之间的角度和第二超声波束的背向散射回波的测量多普勒频率来计算血流速率。

公开(公告)号：US20070073153A1

公开(公告)日：2007-03-29

申请号：US11227662

申请日：2005-09-15

申请人： Piero Tortoli

发明人： Piero Tortoli

IPC分类号： A61B8/00

CPC分类号： A61B8/06 ,  A61B8/4483 ,  G01S15/8979 ,  G01S15/8984

摘要： A method of measuring blood flow including several steps. In an initial step a first ultrasound beam is oriented in a direction substantially perpendicular to the direction of the blood flow to be measured. Next, the Doppler spectrum obtained from the backscattered echoes of said first ultrasound beam is measured. Subsequently, the ultrasound beam is reoriented so that the Doppler spectrum of the backscattered echoes of the ultrasound beam is substantially symmetrical around the zero frequency. The Doppler frequency of the backscattered echoes of a second ultrasound beam oriented at a fixed angle to the first ultrasound beam is then measured. Finally, the rate of blood flow is calculated based on the angle between the ultrasound beams and the measured Doppler frequency of the backscattered echoes of the second ultrasound beam.

摘要翻译： 一种测量血流的方法，包括几个步骤。 在初始步骤中，第一超声波束在基本上垂直于待测血流方向的方向上定向。 接下来，测量从所述第一超声波束的后向散射回波获得的多普勒频谱。 随后，超声波束被重新定向，使得超声波束的背向散射回波的多普勒频谱围绕零频率基本上对称。 然后测量与第一超声波束以固定角度定向的第二超声波的后向散射回波的多普勒频率。 最后，基于超声波束之间的角度和第二超声波束的背向散射回波的测量多普勒频率来计算血流速率。