Ultrasound processing apparatus and method

Patent metadata

Field	Value
Publication number	US-10709423-B2
Application number	US-201414782990-A
Country	US
Kind code	B2
Filing date	Apr 9, 2014
Priority date	Apr 22, 2013
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

The present disclosure relates to an ultrasound processing apparatus and method, and a program that enable easy and stable measurement of tissue characteristics. A vibrator driving unit drives a vibrator incorporated in an ultrasound probe based on a vibration parameter from a vibrator control unit. The vibrator control unit supplies a vibration parameter that is set in accordance with an indication signal input via a user interface, distribution information of viscoelastic coefficients, which is a measurement result of strain computed by a strain computation unit, or the like, and controls the vibrator driving unit. The present disclosure can be applied to, for example, an ultrasound diagnostic imaging apparatus that generates an ultrasound image based on a signal from a probe that captures an ultrasound image, and displays the ultrasound image.

First claim

The invention claimed is:

1. An ultrasound processing apparatus, comprising:
a probe that includes a vibration generator, wherein the vibration generator is configured to vibrate the probe based on a vibration parameter;
a vibration controller configured to:
set the vibration parameter of the vibration generator;
receive a reflected signal from an object corresponding to an ultrasound signal, wherein the reflected signal is acquired by the probe;
estimate a strain of the object based on the reflected signal;
change, based on the strain, the vibration parameter to synchronize a timing of the vibration generated by the vibration generator and a timing of detection of the strain; and

a vibration driver configured to drive the vibration generator based on the vibration parameter.

2. The ultrasound processing apparatus according to claim 1 , further comprising a user interface configured to receive a user operation.

3. The ultrasound processing apparatus according to claim 2 ,
wherein the user operation corresponds to a focus position setting operation to set a user-specified focus position.

4. The ultrasound processing apparatus according to claim 1 , wherein
the probe further includes a vibrating element configured to emit the ultrasound signal.

5. The ultrasound processing apparatus according to claim 1 ,
wherein the vibration parameter is one of a displacement of the vibration, a frequency of the vibration, or a direction of the vibration.

6. The ultrasound processing apparatus according to claim 1 , wherein the probe comprises a plurality of vibration generators.

7. The ultrasound processing apparatus according to claim 1 ,
wherein, at a time of surgery, the probe is in contact with one of an organ or a tissue.

8. The ultrasound processing apparatus according to claim 1 , wherein
the vibration controller is further configured to change a frequency of the vibration generated by the vibration generator to synchronize the timing of the vibration and the timing of the detection of the strain.

9. The ultrasound processing apparatus according to claim 1 ,
wherein the probe includes a transducer and a plurality of vibration generators including the vibration generator.

10. The ultrasound processing apparatus according to claim 9 , further comprising a signal processor configured to:
determine a distance between a target point in a measuring area and the transducer; and
generate a detection signal by phase delayed addition of reflected signals corresponding to each of the plurality of vibration generators based on the determined distance,
wherein the vibration controller is further configured to set the vibration parameter based on the detection signal.

11. An ultrasound processing method, comprising:
in an ultrasound processing apparatus that comprises a probe including a vibration generator:
setting a vibration parameter of the vibration generator to vibrate the probe;
receiving a reflected signal from an object corresponding to an ultrasound signal, wherein the reflected signal is acquired by the probe;
estimating a strain of the object based on the reflected signal;
changing, based on the strain, the vibration parameter to synchronize a timing of the vibration generated by the vibration generator and a timing of detection of the strain; and
driving the vibration generator based on the vibration parameter.

12. A non-transitory computer-readable medium having stored thereon computer-readable instructions, which when executed by a computer, cause the computer to execute operations, the operations comprising:
setting a vibration parameter of a vibration generator to vibrate a probe, wherein the probe includes the vibration generator;
receiving a reflected signal from an object corresponding to an ultrasound signal, wherein the reflected signal is acquired by the probe;
estimating a strain of the object based on the reflected signal;
changing, based on the strain, the vibration parameter to synchronize a timing of the vibration generated by the vibration generator and a timing of detection of the strain; and
driving the vibration generator based on the vibration parameter.

Assignees

• Sony Corp

Inventors

• Sakaguchi Tatsumi

Classifications

• A61B8/08

  Clinical applications (A61B8/02, A61B8/04, A61B8/06 take precedence) · CPC title

• G01S15/8915

  using a transducer array · CPC title

• A61B8/4444

  related to the probe · CPC title

• G01S7/52042

  determining elastic properties of the propagation medium or of the reflective target (diagnostic techniques involving the measurement of strain A61B8/485) · CPC title

• A61B8/469

  for selection of a region of interest · CPC title