METHOD OF MODIFYING DATA ACQUISITION PARAMETERS OF AN ULTRASOUND DEVICE

• US 20080021319A1
• Filed: 07/20/2007
• Published: 01/24/2008
• Est. Priority Date: 07/20/2006
• Status: Abandoned Application

• Current Assignee: Ultrasound Medical Devices, Inc.
• Original Assignee: Ultrasound Medical Devices, Inc.
• Inventors: Hamilton, James
• Application Number:
  US11/781,217
• Publication Number:
  US 20080021319A1
• Time in Patent Office: Days
• US Class Current: 600/437
• CPC Class Codes: A61B 8/0858 involving measuring tissue layers, e.g. skin, interfaces
• CPC Class Codes: A61B 8/485 involving measuring strain or elastic properties
• CPC Class Codes: G01S 15/8959 using coded signals for correlation purposes
• CPC Class Codes: G01S 7/52046 Techniques for image enhancement involving transmitter or receiver image enhancement by image data processing G06T5/00

Abstract

In one embodiment, the invention is a method of modifying data acquisition parameters of an ultrasound device and includes the steps of collecting at least two acoustic beams, calculating optimizations for at least one data acquisition parameter using the acoustic beams, modifying data acquisition parameters according to the optimization. In another embodiment, the invention is a method of collecting at least two acoustic beams for an ultrasound device and includes multiplexing multiple transmit beam signals, transmitting the multiplexed transmit beam signals, receiving at least one receive beam corresponding to each transmit beam, and demultiplexing the received beams.

Claims

1. A method of modifying data acquisition parameters of an ultrasound device, comprising the steps of:

collecting at least one acoustic beam;

calculating optimizations for at least one data acquisition parameter using the acoustic beams; and

modifying data acquisition parameters according to the optimization.

2. The method of claim 1, wherein the step of calculating optimizations for at least one data acquisition parameter includes calculating at least one displacement estimate from the collected acoustic beams using speckle tracking.

3. The method of claim 2, wherein the optimization for at least one data acquisition parameter is at least one data acquisition parameter selected from the group consisting of:

beam spacing, local frame rate, full frame rate, transmit and receive beam location, transmit beam width, transmit waveform, transmit rate, collection geometry, and temporal sampling.

4. The method of claim 2, wherein the optimization for at least one data acquisition parameter is beam spacing, and wherein the beam spacing is automatically adjusted based on calculated tissue displacements.

5. The method of claim 2, wherein the step of calculating optimizations for at least one data acquisition parameter using the acoustic beams includes at least one speckle tracking parameter.

6. The method of claim 2 wherein the step of calculating optimizations for at least one data acquisition parameter using the acoustic beams includes at least one speckle tracking parameter, wherein at least one speckle tracking parameter is selected from the group consisting of:

beam interpolation, search size, and kernel size.

7. The method of claim 1, wherein the step of calculating optimizations for at least one data acquisition parameter using the acoustic beams also includes calculating an assessment of at least one data acquisition parameter using at least one data type selected from the group consisting of:

tissue displacement, temporal and spatial variation of tissue displacement, correlation magnitude, and spatial and temporal variation of correlation magnitude.

8. The method of claim 7, wherein the calculated assessment of at least one data acquisition parameter, using at least one data type, is displayed as at least one image type selected from the group consisting of:

color encoding of the current displayed image mode, current image mode, data quality metric image, calculated assessment over time.

9. The method of claim 1, wherein the step of collecting at least two acoustic beams further comprises the steps of:

(a) multiplexing a first transmit beam signal with a second transmit beam signal;

(b) transmitting the multiplexed transmit beam signals;

(c) receiving at least one receive beam corresponding to the first transmit beam signal and at least one receive beam corresponding to the second transmit beam signal; and

(d) demultiplexing the received beams.

10. The method of claim 9 wherein step (a) further includes modulating the transmit beam signals.

11. The method of claim 10 wherein step (a) further includes modulating the transmit beam signals with orthogonal codes.

12. The method of claim 9, wherein step (d) includes demultiplexing the signals by a method selected from the group consisting of:

demodulating, masking, filtering, and sorting.

13. The method of claim 9 wherein step (b) includes transmitting the multiplexed beam transmit signals to measure at least one subset of a full ultrasound frame.

14. The method of claim 13, further including the step of combining at least two subsets of a full ultrasound frame into one full frame.

15. A method of collecting at least two acoustic beams for an ultrasound device, comprises the steps of:

(a) multiplexing a first transmit beam signal with a second transmit beam signal;

(b) transmitting the multiplexed transmit beam signals;

(c) receiving at least one receive beam corresponding to the first transmit beam signal and at least one receive beam corresponding to the second transmit beam signal; and

(d) demultiplexing the received beams.

16. The method of claim 15 wherein step (a) further includes modulating the transmit beam signals.

17. The method of claim 16 wherein step (a) further includes modulating the transmit beam signals with orthogonal codes.

18. The method of claim 15, wherein step (d) includes demultiplexing the signals by a method selected from the group consisting of:

demodulating, masking, filtering, and sorting.

19. The method of claim 15 wherein step (b) includes transmitting the multiplexed beam transmit signals to measure at least one subset of a full ultrasound frame.

20. The method of claim 19, further including the step of combining at least two subsets of a full ultrasound frame into one full frame.