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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: 2013-03-27
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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AI Technical Summary

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 dividers
If it is implemented with a programmable device, when there are many transmit and receive channels, it will consume a lot of computing resources

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 focal point coordinates; obtaining wavelength or speed of sound; calculating channel coordinates; according to focal coordinates, channel coordinates, and wavelength or speed of sound , The focus parameter calculation device shared between channels is used to calculate the focus parameters of each channel. Combine below Figure 2 to Figure 5 Give it a specific explanation.

[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, and half of the channels are used for transmitting and the other half are used for receiving. The zero coordinate of the screen is located between the transmitting channel and the receiving channel. Assuming that the transmitting frequenc...

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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 calculating device 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 equipment, and 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 blood flow detection. The ultrasonic transducer transmits ultrasonic waves into the subject, and receives ultrasonic echoes returned from the subject. In blood vessels, moving red blood cells scatter ultrasonic waves, and this scattering will shift the frequency of ultrasonic echoes. The magnitude of the frequency deviation is related to the center frequency of the emitted ultrasound and the movement speed of the red blood cells. The Doppler effect is divided into two types: pulse wave and continuous wave. Generally speaking, the Doppler effect of pulse wave is affected by detection depth and pulse repetition frequency, and is limited to low-velocity blood flow, such as ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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