Method and apparatus for realizing focusing calculation in continuous Doppler ultrasound system

A technology of Doppler ultrasound and focus calculation, which is applied in the field of focus calculation in the continuous Doppler ultrasound system, can solve the problems of consuming multipliers and excessive calculation resources, and achieve the goals of saving calculation resources, increasing parallelism, and improving efficiency Effect

Active Publication Date: 2009-07-01
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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Problems solved by technology

This algorithm configures a focus parameter calculation unit for each transmit and receive channel, which consumes many multipliers, square rooters, and

Method used

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  • Method and apparatus for realizing focusing calculation in continuous Doppler ultrasound system
  • Method and apparatus for realizing focusing calculation in continuous Doppler ultrasound system
  • Method and apparatus for realizing focusing calculation in continuous Doppler ultrasound system

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Embodiment Construction

[0031] Generally speaking, the method for performing focus calculation in a Doppler ultrasound system according to the present invention includes the following steps: obtaining focus coordinates; obtaining wavelength or sound velocity; calculating channel coordinates; according to focus coordinates, channel coordinates, and wavelength or sound velocity , using a focus parameter calculation device shared between channels to calculate the focus parameters of each channel. Combine below Figure 2 to Figure 5 Describe it in detail.

[0032] figure 2 It is a structural diagram of channel distance calculation according to an embodiment of the present invention. As shown in the figure, the channels are arranged at equal intervals, half of the channels are used for transmitting, and the other half are used for receiving. The coordinate zero point of the screen is located between the transmit channel and the receive channel. Assuming that the transmission frequency is f0, the 2-dim...

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Abstract

The invention discloses a method for performing focalization calculation in a Doppler ultrasonic system and the method comprises steps of obtaining focal coordinates; obtaining wave length or speed of sound; calculating channel coordinates; adopting a focalization parameter calculating device shared by the channels to calculate focalization parameters of each channel according to the focal coordinates, channel coordinates and wave length or speed of sound. The invention also disclose a device for performing focalization calculation in a Doppler ultrasonic system, and the device comprises a data obtaining device for obtaining focal coordinates and wave length or speed of sound; a channel coordinate calculating device for calculating channel coordinates; a focalization parameter calculatingdevice for connecting with the data obtaining device and the channel coordinate calculating device for calculating focalization parameters of at least two channels according to the focal coordinates, channel coordinates and wave length or speed of sound. Large numbers of computing resources can be saved by adopting the computing resources shared by channels to performing the focalization calculation, and the computational efficiency can be improved by adopting a water-running mode to perform the focalization calculation.

Description

technical field [0001] The invention relates to the field of ultrasonic diagnostic instruments, in particular to a method and equipment for realizing focus calculation in a continuous Doppler ultrasonic system. Background technique [0002] In ultrasound imaging systems, the Doppler effect is widely used in the detection of blood flow. The ultrasonic transducer transmits ultrasonic waves into the body of the subject and receives ultrasonic echoes returned from the body of the subject. In blood vessels, moving red blood cells scatter ultrasound waves, and this scattering shifts the frequency of the ultrasound echoes. The magnitude of the frequency shift is related to the center frequency of the emitted ultrasonic waves and the movement speed of red blood cells. The Doppler effect is divided into pulse wave and continuous wave. Generally speaking, the Doppler effect of pulse wave is affected by the detection depth and pulse repetition frequency, and is limited to low-speed b...

Claims

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Application Information

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IPC IPC(8): A61B8/06G06F17/00G06Q50/00
Inventor 皮兴俊胡锐尤奎
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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