Portable 3D ultrasound system

• US 7,141,020 B2
• Filed: 02/20/2002
• Issued: 11/28/2006
• Est. Priority Date: 02/20/2002
• Status: Expired due to Term

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Wilson, Martha G., Poland, Mckee D
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): Jung, William
• Application Number:
  US10/080,160
• Publication Number:
  US 20030158482A1
• Time in Patent Office: 1,742 Days
• Field of Search: 600/437, 600/445, 600446-449, 600/441, 600/459, 600/463
• US Class Current: 600/447
• CPC Class Codes: A61B 8/4427 Device being portable or laptop-like
• CPC Class Codes: G01H 1/00 Measuring characteristics of vibrations in solids by using direct conduction to the detector G01H9/00, G01H11/00 take precedence
• CPC Class Codes: G01H 3/00 Measuring characteristics of vibrations by using a detector in a fluid G01H7/00, G01H9/00, G01H11/00 take precedence
• 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 15/8993 Three dimensional imaging systems
• CPC Class Codes: G01S 7/52046 Techniques for image enhancement involving transmitter or receiver image enhancement by image data processing G06T5/00
• CPC Class Codes: G01S 7/52079 Constructional features constructional features of transducers B06B; mounting transducers G10K11/00; constructional features of ultrasonic medical diagnostic devices A61B8/44
• CPC Class Codes: G01S 7/5208 with integration of processing functions inside probe or scanhead
• CPC Class Codes: G01S 7/52082 involving a modular construction, e.g. a computer with short range imaging equipment modular ultrasonic medical diagnostic devices A61B8/4411
• CPC Class Codes: G10K 11/346 using phase variation

Abstract

A portable 3D ultrasound device having an ultrasound transducer. The ultrasound transducer includes a transducer array with a plurality of transducer elements arranged in a plurality of dimensions, the transducer array including an emitter to emit ultrasound energy, a receiver to receive responses generated in accordance with the ultrasound energy, a plurality of sub-array beamformers, a signal processor to convert the generated responses into a 3D ultrasound image and a display unit to display the 3D ultrasound image.

Claims

1. A portable 3D ultrasound device, comprising:

A. an ultrasound transducer, comprising;

a transducer array comprising a plurality of transducer elements arranged in a plurality of dimensions, the transducer array including an emitter to emit ultrasound energy and a receiver to receive responses generated in accordance with the emitted ultrasound energy; and

a plurality of sub-array beamformers, comprising;

a static receive delay to delay a plurality of the generated responses; and

a first summer electrically coupled to the static receive delay to sum the plurality of the delayed generated responses to generate a summed acoustic signal;

B. a signal processor electrically coupled to the first summer to convert the generated summed acoustic signal into a 3D ultrasound image; and

C. a display unit to display the 3D ultrasound image.

2. The portable 3D ultrasound device of claim 1, wherein the signal processor comprises:

a generator to generate 3D detected data from the summed acoustic signal; and

a scan converter to convert the 3D detected data into the 3D ultrasound image.

3. The portable 3D ultrasound device of claim 2, wherein the scan converter and the display unit are contained in a single unit.

4. The portable 3D ultrasound device of claim 2, wherein the signal processor and the display unit comprise a laptop computer.

5. The portable 3D ultrasound device of claim 2, further comprising a battery to power the portable ultrasound device.

6. The portable 3D ultrasound device of claim 2, wherein the signal processor comprises a handheld computer.

7. The portable 3D ultrasound device of claim 2, wherein the generator comprises a dynamic beamformer, comprising:

a plurality of dynamic receive delays to delay the summed acoustic signals; and

a second summer electrically coupled to the dynamic receive delays to sum the delayed summed acoustic signals to generate an array of beamformed data.

8. The portable 3D ultrasound device of claim 7, wherein the generator further comprises an image detector electrically coupled to the second summer to receive the array of beamformed data and generate the 3D detected data therefrom.

9. The portable 3D ultrasound device of claim 8, wherein the dynamic beamformer and the image detector comprise a PC card.

10. The portable 3D ultrasound device of claim 1, wherein the portable ultrasound device weighs less than 10 pounds.

11. The portable 3D ultrasound device of claim 1, further comprising a moving unit to move the transducer along an axis.

12. The portable 3D ultrasound device of claim 1, wherein the display unit displays the 3D ultrasound image in real time.

13. The portable 3D ultrasound device of claim 1, wherein the 3D ultrasound image is one of a bi-plane image, a multiplane image, a single image at a user-defined orientation, a volumetric image and a holographic image.

14. A portable 3D ultrasound device, comprising:

A. a transducer, comprising;

a plurality of acoustic elements in a form of a matrix array constructed from a plurality of transducer elements arranged in a plurality of dimensions, the matrix array included to transmit ultrasound energy and receive responses generated in accordance with the ultrasound energy, and

a plurality of sub-array beamformers to generate a plurality of sub-array summed acoustic signals from the generated responses;

B. a dynamic beamformer, comprising;

a plurality of dynamic receive delays to delay the sub-array summed acoustic signals, and

a full-array summer to sum the delayed sub-array summed acoustic signals to generate a full set of beamformed data;

C. an image detector to generate 3D detected data from the full set of beamformed data;

D. a scan converter to convert the 3D detected data into a 3D ultrasound image; and

E. a display unit to display the 3D ultrasound image.

15. The portable 3D ultrasound device of claim 14, wherein the sub-array beamformers comprise:

a set of static transmit delays to delay the transmitted ultrasound energy;

a set of static receive delays to delay the generated responses; and

a sub-array summer to sum the statically delayed generated responses to generate the plurality of sub-array summed acoustic signals.

16. The portable 3D ultrasound device of claim 15, wherein the 3D detected data comprises a plurality of scan lines in three dimensions, and the static transmit delays focus the transmitted ultrasound energy to generate the plurality of scan lines in three dimensions.

17. The portable 3D ultrasound device of claim 15, wherein the 3D detected data comprises a plurality of scan lines in three dimensions, and the dynamic receive delays focus the received responses to generate the plurality of scan lines in three dimensions.

18. A 3D ultrasound imaging method, comprising the steps of:

scanning a body with a portable or hand-held device by transmitting ultrasound energy from the portable or hand-held device and receiving responses generated in accordance with the transmitted ultrasound energy with the portable or hand-held device;

generating a plurality of sub-array summed RF acoustic signals using static beamforming techniques;

generating a full array of beamformed RF data using dynamic beamforming;

generating image detected data by image detecting the full array of generated beamformed RF data;

converting the image detected data to a 3D ultrasound image with the portable or hand-held device; and

displaying the 3D ultrasound image on the portable or hand-held device.

19. The method of claim 18, wherein the static beamforming techniques utilized in the step of generating a plurality of sub-array summed RF data includes

delaying the generated responses, and

summing the delayed generated responses to generate a plurality of summed signals;

and wherein the dynamically beamforming the summed signals utilized in the step of generating a full array of beamformed RF data includes;

dynamically delaying the summed signals, and

summing the delayed summed signals to generate 3D detected data; and

scan converting the 3D detected data into the 3D ultrasound image.