Imaging, Therapy, and temperature monitoring ultrasonic system

• US 20030036706A1
• Filed: 07/10/2002
• Published: 02/20/2003
• Est. Priority Date: 10/14/1997
• Status: Active Grant

• Current Assignee: Guided Therapy Systems Llc
• Original Assignee: Michael H. Slayton
• Inventors: Slayton, Michael H., Barthe, Peter G.
• Granted Patent: US 7,229,411 B2
• Time in Patent Office: Days
• US Class Current: 600/439
• CPC Class Codes: A61B 2017/22028 arrays, e.g. phased arrays
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/015 By temperature mapping of body part
• CPC Class Codes: A61B 8/0833 involving detecting or locating foreign bodies or organic structures
• CPC Class Codes: A61B 8/15 Transmission-tomography
• CPC Class Codes: A61B 8/5223 for extracting a diagnostic or physiological parameter from medical diagnostic data for algorithms to analyse biomedical images G06T7/0012
• CPC Class Codes: A61N 7/02 Localised ultrasound hyperthermia hyperthermia in general A61F7/00
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

An ultrasonic system useful for providing imaging, therapy and temperature monitoring generally comprises an acoustic transducer assembly configured to enable the ultrasound system to perform the imaging, therapy and temperature monitoring functions. The acoustic transducer assembly comprises a single transducer that is operatively connected to an imaging subsystem, a therapy subsystem and a temperature monitoring subsystem. The ultrasound system may also include a display for imaging and temperature monitoring functions. An exemplary single transducer is configured such that when connected to the subsystems, the imaging subsystem can generate an image of a treatment region on the display, the therapy subsystem can generate high power acoustic energy to heat the treatment region, and the temperature monitoring subsystem can map and monitor the temperature of the treatment region and display the temperature on the display, all through the use of the single transducer. Additionally, the acoustic transducer assembly can be configured to provide three-dimensional imaging, temperature monitoring or therapeutic heating through the use of adaptive algorithms and/or rotational or translational movement. Moreover, a plurality of the exemplary single transducers can be provided to facilitate enhanced treatment capabilities.

Claims

13. A combined imaging, therapy and temperature monitoring system comprising:

a single acoustic transducer which enables three-dimensional ultrasonic imaging of a target tissue on a display, temperature measurement of said target tissue by creating a map of the temperature distribution in said target tissue on said display, and substantially controlled heating of said target tissue.

14. The system of claim 13, wherein said single transducer further enables a three-dimensional map of said temperature distribution.

15. The system of claim 13, further comprising a control system, wherein said three-dimensional imaging is facilitated by an adaptive algorithm within said control system which is configured to adapt a two-dimensional imaging signal into a three-dimensional representation of said target tissue.

16. The system of claim 15, wherein said single transducer is configured in a two-dimensional array.

17. The system of claim 13, wherein said three-dimensional imaging is facilitated by repositioning said transducer around a perimeter of said target tissue.

18. The system of claim 17, wherein said repositioning of said transducer around a perimeter of said target tissue is conducted by a mechanical repositioning device.

29. The system of claim 17, wherein said repositioning of said transducer around a perimeter of said target tissue is conducted between at least two positions.

20. The system of claim 17, wherein said repositioning of said transducer around a perimeter of said target tissue comprises at least one of rotating and translating said single transducer.

21. The system of claim 15, further comprising repositioning said transducer around a perimeter of said target tissue.

30. The ultrasonic system of claim 29, further comprising additional transducers configured to provide imaging, temperature monitoring and therapeutic heating for said treatment region.

22. An ultrasonic system for providing therapeutic treatment, said system comprising:

at least two acoustic transducers configured within a single probe, wherein at least one of said acoustic transducers is adapted to provide imaging, temperature monitoring and therapeutic heating for a treatment region.

1. A method for therapeutic treatment comprising the steps of:

providing an ultrasonic therapy system including a single acoustic transducer, a display, and a control interface; and

operating said control interface to control said single transducer to non-invasively provide three-dimensional real-time imaging and temperature monitoring, and provide therapeutic heating of a treatment region during the therapeutic treatment process, such that said three-dimensional real-time imaging, temperature monitoring, and therapeutic heating are conducted through the use of said single transducer.

2. The method of claim 1, wherein said step of operating said control interface to control said single transducer comprises adapting two-dimensional imaging signals and temperature signals from said single transducer to provide a three-dimensional representation of said imaging and temperature signals.

3. The method of claim 2, wherein said step of adapting said two-dimensional imaging signals and temperature signals comprises using an adaptive algorithm for reconfiguring said signals to represent three-dimensional images and temperature monitoring.

4. The method of claim 3, wherein said step of adapting said two-dimensional imaging signals and temperature signals comprises using a two-dimensional transducer array.

5. The method of claim 1, wherein said step of operating said control interface to control said single transducer comprises repositioning said single transducer around a perimeter of said treatment region.

6. The method of claim 5, wherein said step of repositioning comprises using a mechanical scanning device to reposition said single transducer.

7. The method of claim 5, wherein said step of repositioning comprises repositioning said single transducer to at least two positions around said perimeter of said treatment region.

8. The method of claim 5, wherein said step of repositioning comprises repositioning said single transducer substantially around said perimeter of said treatment region.

9. The method of claim 7, wherein said step of repositioning comprises repositioning said single transducer in a substantially continuous manner.

10. The method of claim 7, wherein said step of repositioning comprises at least one of rotating and translating said single transducer.

11. The method of claim 2, wherein said step of operating said control interface to control said single transducer further comprises repositioning said single transducer around a perimeter of said treatment region to provide a three-dimensional representation of said imaging and temperature signals.

12. The method of claim 1, wherein said step of operating said control interface to control said single transducer comprises providing three-dimensional therapeutic heating of said treatment region.

23. The ultrasonic system of claim 22, wherein said at least two acoustic transducers are positioned within said probe in substantially opposite directions.

24. The ultrasonic system of claim 22, wherein said at least two acoustic transducers operate at different operating frequencies.

25. The ultrasonic system of claim 22, wherein said system comprises:

at least three acoustic transducers configured within a single probe, wherein at least two of said acoustic transducers are adapted to separately provide imaging, temperature monitoring and therapeutic heating for a treatment region.

25-1. The ultrasonic system of claim 23, wherein said single probe is rotated around a perimeter of said treatment region to provide an alternate plane-of-view for each said acoustic transducer.

26. An ultrasonic system for therapeutic treatment, said system comprising:

a first transducer within an extracorporeal probe;

a second transducer within an endoscopic probe;

wherein at least one of said first transducer and said second transducer is adapted to provide imaging, temperature monitoring and therapeutic heating for a treatment region.