Systems and methods of high frame rate streaming for treatment monitoring

• US 9,247,921 B2
• Filed: 06/09/2014
• Issued: 02/02/2016
• Est. Priority Date: 06/07/2013
• Status: Active Grant

• Current Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Original Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Inventors: Provost, Jean, Konofagou, Elisa E., Hou, Gary Yi, Chen, Jiangang
• Primary Examiner(s): Lu, Tom Y
• Application Number:
  US14/300,106
• Publication Number:
  US 20150010222A1
• Time in Patent Office: 603 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 8/00 Diagnosis using ultrasonic, sonic or infrasonic waves imaging of objects using sonar G01S15/00
• CPC Class Codes: A61B 8/08 Detecting organic movements or changes, e.g. tumours, cysts, swellings A61B8/02 - A61B8/06 take precedence
• CPC Class Codes: A61B 8/085 for locating body or organic structures, e.g. tumours, calculi, blood vessels, nodules
• CPC Class Codes: A61N 2007/0052 using the same transducer for therapy and imaging
• CPC Class Codes: A61N 7/02 Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

Systems and techniques of treatment monitoring include acquiring channel data from each of a plurality of channels of a signal array over a plurality of frames, determining a reconstruction matrix based on a reconstruction operation to be performed on the channel data, applying the reconstruction matrix to the channel data to obtain reconstructed channel data, estimating displacement data representing displacement of an object over the frames from the reconstructed channel data; determining a conversion matrix based on a conversion operation to be performed on the reconstructed channel data, and applying the conversion matrix to the reconstructed channel data to obtain a displacement map.

Claims

1. A method for treatment monitoring using acquired channel data from each of a plurality of channels of a signal array over a plurality of frames, comprising:

determining, using a processor in communication with the signal array, a reconstruction matrix based on a reconstruction operation to be performed on the channel data;

applying, using the processor, the reconstruction matrix to the channel data to obtain reconstructed channel data;

estimating, using the processor, displacement data from the reconstructed channel data, the displacement data representing displacement of an object over the plurality of frames;

determining, using the processor, a conversion matrix based on a conversion operation to be performed on the reconstructed channel data; and

applying, using the processor, the conversion matrix to the reconstructed channel data to obtain a displacement map.

2. The method of claim 1, wherein the signal array comprises an imaging array.

3. The method of claim 1, wherein the reconstruction operation comprises an RF reconstruction operation.

4. The method of claim 1, wherein the reconstruction operation comprises a GPU-based reconstruction operation.

5. The method of claim 1, further comprising applying a low pass filter to the reconstructed channel data.

6. The method of claim 1, wherein the estimating the displacement data is performed using a cross correlation technique.

7. The method of claim 1, further comprising applying a temporal low pass filter to the estimated displacement data.

8. The method of claim 1, wherein the conversion operation comprises a scan conversion operation.

9. The method of claim 1, wherein the conversion operation comprises a GPU-based conversion operation.

10. The method of claim 1, wherein at least one of the reconstruction matrix and the conversion matrix is a sparse matrix.

11. The method of claim 1, further comprising outputting the displacement map to a display device in communication with the processor.

12. A system for treatment monitoring using acquired channel data from each of a plurality of channels of a signal array over a plurality of frames, comprising:

one or more memories; and

one or more processors coupled to the one or more memories, wherein the one or more processors are configured to;

determine a reconstruction matrix based on a reconstruction operation to be performed on the channel data;

apply the reconstruction matrix to the channel data to obtain reconstructed channel data;

estimate displacement data representing displacement of an object over the frames from the reconstructed channel data;

determine a conversion matrix based on a conversion operation to be performed on the reconstructed channel data; and

apply the conversion matrix to the reconstructed channel data to obtain a displacement map.

13. The system of claim 12, wherein the signal array comprises an imaging array.

14. The system of claim 12, wherein the signal array comprises an HIFU transducer.

15. The system of claim 12, wherein the reconstruction operation comprises an RF reconstruction operation.

16. The system of claim 12, wherein the reconstruction operation comprises a GPU-based reconstruction operation.

17. The system of claim 12, wherein the processor is further configured to apply a low pass filter to the reconstructed channel data.

18. The system of claim 12, wherein the displacement data is estimated using a cross correlation technique.

19. The system of claim 12, wherein the processor is further configured to apply a temporal low pass filter to the estimated displacement data.

20. The system of claim 12, wherein the conversion operation comprises a scan conversion operation.

21. The system of claim 12, wherein the conversion operation comprises a GPU-based conversion operation.

22. The system of claim 12, wherein at least one of the reconstruction matrix and the conversion matrix is a sparse matrix.

23. The system of claim 12, further comprising a display, in communication with the processor, to display the displacement map to a user.