Method and apparatus for measuring flow in multi-dimensional ultrasound

Method and apparatus for measuring flow in multi-dimensional ultrasound

  • CN 101,273,904 B
  • Filed: 03/28/2008
  • Issued: 06/24/2015
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
Patent Images

1. , for estimating a method for the speed of the stream in ultrasound data set, the method comprises:

  • Two-dimentional 2D image defines sampling volume door, and this 2D image is based on ultrasound data set;

    The transmitting aperture transmitted is determined by selecting first group of element of transducer of ultrasonic probe, by selecting to be arranged on second on the opposite side of transmitting aperture and the 3rd group of element of transducer determines first group of receiving aperture in the first dimension, by selecting the 4th and the 5th group of element of transducer be arranged in the second orthogonal dimension on the opposite side of transmitting aperture to determine second group of receiving aperture, described first and second groups of receiving apertures are separated with described transmitting aperture;

    Be included in described transmitting aperture and/or described receiving aperture by changing which element of transducer the position changing transmitting aperture described in described probe and/or described first group of receiving aperture and described second group of receiving aperture along when the first dimension and/or two-dimensional movement in the position of described sampling volume door;

    Utilize described first group and second group of receiving aperture in described sampling volume door, detect the frequency spectrum Doppler velocity estimation of stream relative to the angle of the signal launched by the element of transducer in described transmitting aperture based on the wave beam detected by described first group and second group of receiving aperture, this frequency spectrum Doppler velocity estimation detects in the first orthogonal peacekeeping second is tieed up;

    AndBased on this frequency spectrum Doppler velocity estimation, in sampling volume door, determine that the true velocity flowed is estimated.

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