Two-dimensional transducer arrays for improved field of view

• US 7,637,869 B2
• Filed: 06/26/2004
• Issued: 12/29/2009
• Est. Priority Date: 06/30/2003
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Sudol, Wojtek
• Primary Examiner(s): Le; Long V
• Assistant Examiner(s): Cattungal; Sanjay
• Application Number:
  US10/560,722
• Publication Number:
  US 20060173333A1
• Time in Patent Office: 2,012 Days
• Field of Search: 736/25, 736/26, 600437-466, 367/178
• US Class Current: 600/437
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: B06B 1/0637 Spherical array
• CPC Class Codes: B06B 2201/76 Medical, dental
• 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 15/8929 using a three-dimensional transducer configuration
• CPC Class Codes: G01S 15/8993 Three dimensional imaging systems
• CPC Class Codes: G10K 11/341 Circuits therefor
• CPC Class Codes: G10K 11/346 using phase variation

Abstract

A method and system for using two-dimensional transducer arrays for improving the field of view during an ultrasonic examination are disclosed. The ultrasonic imaging system includes a two-dimensional transducer array with a plurality of acoustic elements, a beam controller, a signal processor, and a display. The beam controller controls a generated acoustic beam capable of being advanced longitudinally or laterally along the two-dimensional transducer array. Additionally, the generated acoustic beam is capable of being phase-shifted by the beam controller. Combining the phase shifting of and advancement of the acoustic beam increases the field of view of the two-dimensional array.

Claims

1. An ultrasonic imaging apparatus comprising:

an ultrasonic probe;

a plurality of acoustic elements configured and arranged to form a two-dimensional array, said two-dimensional array configured and adapted to fit within the ultrasonic probe wherein said plurality of acoustic elements includes at least two active acoustic elements capable of generating acoustic pulses and/or receiving echo signals; and

a beam controller coupled to said two-dimensional array, said beam controller capable of driving the at least two active acoustic elements to produce said acoustic pulses originating from the two active acoustic elements for impinging an acoustic target to generate the echo signals, and having associated circuitry configured for controlling directional movement of said acoustic pulses by a combination of tractor treading and beam steering.

2. The ultrasonic imaging apparatus of claim 1, further including a signal processor coupled to said two-dimensional array for processing the echo signal, thereby forming at least one image signal.

3. The ultrasonic imaging apparatus of claim 1, wherein said two-dimensional array is configured and arranged in a substantially planar configuration.

4. The ultrasonic imaging apparatus of claim 1, wherein said two-dimensional array is configured and arranged in a substantially cylindrical configuration.

5. The ultrasonic imaging apparatus of claim 1, wherein said two-dimensional array is configured and arranged in a substantially convex configuration.

6. The ultrasonic imaging apparatus of claim 5, wherein said convex configuration includes substantially equal lateral and longitudinal dimensions.

7. A method for improving volumetric imaging in an ultrasonic imaging apparatus comprising the acts of:

providing an ultrasonic probe;

providing a plurality of acoustic elements configured and arranged to form a two-dimensional array, said two-dimensional array configured and adapted to fit within the ultrasonic probe wherein said plurality of acoustic elements includes at least two active acoustic element capable of generating an acoustic pulse originating from the two active acoustic elements and/or receiving echo signal;

providing a beam controller coupled to said two-dimensional array, said beam controller capable of driving the at least two of active acoustic element to produce said acoustic pulse for impinging an acoustic target to generate the echo signals and having associated circuitry configured for controlling directional movement of said acoustic pulses by a combination of tractor treading and beam steering; and

actuating said beam controller to generate and move said acoustic pulse.

8. The method of claim 7, further comprising the act of providing a signal processor coupled to said two-dimensional array for processing the echo signals, thereby forming at least one image signal.

9. The method of claim 8, further comprising the act of displaying data corresponding to the at least one image signal.

10. The method of claim 7, wherein said two-dimensional array is configured and arranged in a substantially planar configuration.

11. The method of claim 7, wherein said two-dimensional array is configured and arranged in a substantially cylindrical configuration.

12. The method of claim 7, wherein said two-dimensional array is configured and arranged in a substantially convex configuration.

13. The method of claim 12, wherein said convex configuration includes substantially equal lateral and longitudinal dimensions.

14. An ultrasonic imaging kit comprising:

at least two ultrasonic probes, each having a transducer array and associated circuitry where each ultrasonic probe is configured and dimensioned for alternative placement within an ultrasonic system, at least one of a first ultrasonic probe further including a plurality of acoustic elements configured and arranged to form a two-dimensional array, said two-dimensional array configured and adapted to fit within the ultrasonic probe wherein said plurality of acoustic elements includes at least two active acoustic elements capable of generating an acoustic pulse and/or receiving echo signal; and

a beam controller coupled to the circuitry of the first ultrasonic probe and in communication with said transducer array disposed within said ultrasonic probe, said beam controller capable configured for driving the at least two active acoustic elements to produce said acoustic pulses originating from the two active acoustic for impinging an acoustic target to generate echo signals and having associated circuitry configured for controlling directional movement of said acoustic pulses by a combination of tractor treading and beam steering.

15. The ultrasonic imaging kit of claim 14, further including a signal processor coupled to said two-dimensional array for processing the echo signals, thereby forming at least one image signal.

16. The ultrasonic imaging kit of claim 14, wherein said two-dimensional array is configured and arranged in a substantially planar configuration.

17. The ultrasonic imaging kit of claim 14, wherein said two-dimensional array is configured and arranged in a substantially cylindrical configuration.

18. The ultrasonic imaging kit of claim 14, wherein said two-dimensional array is configured and arranged in a substantially convex configuration.

19. The ultrasonic imaging kit of claim 18, wherein said convex configuration includes substantially equal lateral and longitudinal dimensions.

20. An ultrasonic imaging system comprising:

an ultrasonic probe;

a plurality of acoustic elements configured and arranged to form a two-dimensional array, said two-dimensional array configured and adapted to fit within the ultrasonic probe wherein said plurality of acoustic elements includes at least two active acoustic elements capable of generating an acoustic pulse and/or receiving an echo signals; and

a beam controller coupled to said two-dimensional array, said beam controller configured for driving the at least two active acoustic element to produce said acoustic pulses originating from the two active acoustic for impinging an acoustic target to generate at the echo signal, and having associated circuitry configured for controlling directional movement of said acoustic pulse by a combination of tractor treading and beam steering.

21. The ultrasonic imaging system of claim 20, further comprising:

a signal processor coupled to said two-dimensional array for processing the echo signals, thereby forming at least one image signal;

means for connecting said ultrasonic probe to an ultrasonic imaging apparatus; and

means for displaying the at least one image signal.

22. The ultrasonic imaging system of claim 20, wherein said two-dimensional array is configured and arranged in a substantially planar configuration.

23. The ultrasonic imaging system of claim 20, wherein said two-dimensional array is configured and arranged in a substantially cylindrical configuration.

24. The ultrasonic imaging system of claim 20, wherein said two-dimensional array is configured and arranged in a substantially convex configuration.

25. The ultrasonic imaging system of claim 24, wherein said convex configuration includes substantially equal lateral and longitudinal dimensions.