DEVICE SYSTEM AND METHOD FOR GENERATING ADDITIVE RADIATION FORCES WITH SOUND WAVES

• US 20130058195A1
• Filed: 06/29/2012
• Published: 03/07/2013
• Est. Priority Date: 06/29/2011
• Status: Abandoned Application

• Current Assignee: Anis Redha Hadj Henni, Cedric Rene Schmitt, Emmanuel Montagnon, Guy Cloutier
• Original Assignee: Cedric Rene Schmitt, Emmanuel Montagnon, Guy Cloutier
• Inventors: CLOUTIER, Guy, HENNI, Anis Redha Hadj, SCHMITT, Cdric Rne, MONTAGNON, Emmanuel
• Application Number:
  US13/537,322
• Publication Number:
  US 20130058195A1
• Time in Patent Office: Days
• US Class Current: 367/99
• CPC Class Codes: A61B 8/0825 for diagnosis of the breast, e.g. mammography
• CPC Class Codes: A61B 8/085 for locating body or organic structures, e.g. tumours, calculi, blood vessels, nodules
• CPC Class Codes: A61B 8/15 Transmission-tomography
• CPC Class Codes: A61B 8/4477 using several separate ultrasound transducers or probes
• CPC Class Codes: A61B 8/485 involving measuring strain or elastic properties
• CPC Class Codes: G01S 15/8915 using a transducer array
• CPC Class Codes: G01S 15/8925 the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays
• CPC Class Codes: G01S 15/8927 using simultaneously or sequentially two or more subarrays or subapertures
• CPC Class Codes: G01S 15/8934 using a dynamic transducer configuration
• CPC Class Codes: G01S 15/894 by rotation about a single axis
• CPC Class Codes: G01S 15/8945 using transducers mounted for linear mechanical movement
• CPC Class Codes: G01S 7/52022 using a sequence of pulses, at least one pulse manipulating the transmissivity or reflexivity of the medium
• CPC Class Codes: G01S 7/52042 determining elastic properties of the propagation medium or of the reflective target diagnostic techniques involving the measurement of strain A61B8/485

Abstract

The present relates to a device, a system and a method for generating radiation forces in a region of interest. For doing so, a plurality of additive shear waves are generated in the region of interest.

Claims

1. A method for generating radiation forces in a region of interest, the method comprising:

identifying a plurality of additive shear waves;

determining direction and magnitude of two-dimensional acoustic waves for each additive shear wave; and

generating the two-dimensional acoustic waves with the determined direction and magnitude for each one of the plurality of additive shear waves so as to generate radiation forces in the region of interest.

2. The method of claim 1, wherein the plurality of additive shear waves are generated concurrently.

3. The method of claim 2, wherein the additive shear waves converge to one specific point in the region of interest.

4. The method of claim 2, wherein the additive shear waves follow an arbitrary path in the region of interest.

5. The method of claim 2, wherein the additive shear waves surround the region of interest.

6. A system for generating radiation forces in a region of interest, the system comprising:

a plurality of transducers for generating two-dimensional acoustic waveforms; and

a control unit for controlling orientation and magnitude of the two-dimensional radiation forces so as to generate a plurality of additive shear waves in the region of interest.

7. The system of claim 6, wherein the additive shear waves are generated concurrently.

8. The system of claim 7, wherein the additive shear waves converge to one specific point in the region of interest.

9. The system of claim 7, wherein the additive shear waves follow an arbitrary path in the region of interest.

10. The system of claim 7, wherein the additive shear waves surround the region of interest.

11. A device for generating radiation forces in a region of interest, the device comprising:

a plurality of transducers, each transducer being controlled for generating a two-dimensional acoustic radiation force with a corresponding orientation and magnitude so as to generate additive shear waves in the region of interest.

12. The device of claim 11, wherein the additive shear waves are concurrent and converge to one specific point in the region of interest.

13. The device of claim 11, wherein the additive shear waves follow an arbitrary path in the region of interest.

14. The device of claim 11, wherein the additive shear waves surround the region of interest.