Inhibition method for complete type-B ultrasonic instrument supersonic wave aberration based on transmission iterative method

An all-digital, iterative method technology, applied in the field of suppression of ultrasonic abnormalities of all-digital B-ultrasound instruments, can solve the problems of difficult to obtain reliable image diagnosis, achieve the effect of reducing and suppressing ultrasonic abnormalities and facilitating modeling

Inactive Publication Date: 2010-06-02
ZHEJIANG UNIV
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Problems solved by technology

In many cases, reduced image resolution may make reliable diagnosis based on these images difficult to obtain

Method used

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  • Inhibition method for complete type-B ultrasonic instrument supersonic wave aberration based on transmission iterative method
  • Inhibition method for complete type-B ultrasonic instrument supersonic wave aberration based on transmission iterative method
  • Inhibition method for complete type-B ultrasonic instrument supersonic wave aberration based on transmission iterative method

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 , 11 As shown, the method of suppressing the ultrasonic abnormality of the all-digital B-ultrasound instrument based on the emission iterative algorithm is carried out in the following steps:

[0029] (1) The ultrasonic transducer probe of the all-digital B-ultrasound instrument transmits the original signal to the human body;

[0030] (2) The signal is fed back from the human body, received by the probe, and the feedback signal is transmitted to the microprocessor, that is, the CPU;

[0031] (3) The CPU iteratively processes the feedback signal;

[0032] (4) The iteratively processed signal is transmitted to the human body through the probe;

[0033] (5) The probe receives the feedback signal again;

[0034] (6) Return to step (3) and repeat steps (3)-(6) 8 times;

[0035] (7) Finally, the image is displayed.

[0036] system box Figu...

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Abstract

The invention provides an inhibition method based on a transmission iterative method for the ultrasonic aberration of an all-digital B-ultrasonic scanner. The method comprises the following steps that: (1) an ultrasonic transducer probe of the B-ultrasonic scanner transmits an original signal; (2) the probe receives a feedback signal and transmits the feedback signal to a microprocessor; (3) the microprocessor carries out iterative treatment of the feedback signal; (4) the probe transmits the signal which has undergone the iterative treatment again; (5) the probe receives the feedback signal again; (6) the step (3) is returned to, and the steps from (3) to (6) are repeated for a plurality of times; (7) an image is displayed. The inhibition method based on the transmission iterative algorithm for the ultrasonic aberration of the all-digital B-ultrasonic scanner uses filter estimation to correct a transmitting sound beam, and an obtained sound beam brings about the acoustic back scattering which is more suitable for estimating the arrival time and amplitude of the signal. Therefore, the modeling of the transducer becomes more convenient and is finally applied to the all-digital B-ultrasonic scanner for reducing and inhibiting the ultrasonic aberration.

Description

technical field [0001] The invention belongs to the technical field of all-digital B-ultrasound instruments, and in particular relates to a method for suppressing the abnormality of ultrasonic waves of all-digital B-ultrasound instruments based on a transmission iteration method. Background technique [0002] Aberrations in medical ultrasound imaging are usually modeled by the arrival time and amplitude fluctuations of the transducer array signal, which is an approximation of the physical aberration process and can correct the transmitted signal by using delay and amplitude filters, But it is very difficult to measure this kind of filter when it is seriously abnormal. [0003] In medical ultrasound imaging, the nonlinear characteristics of ultrasonic waves propagating in biological tissues are usually used, which also brings noise. The main source of noise in ultrasonic images is the aberration and multiple reflections between the transducer and biological tissues, both of w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/14
Inventor 郑音飞李鹏乔义松
Owner ZHEJIANG UNIV
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