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US 2010/0168571 A1Published application
Image-based power feedback for optimal ultrasound imaging or radio frequency tissue ablation
AssigneeKoninklijke Philips Electronics N.V.
InventorsDavid Savery, Christopher Hall
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Abstract
Methods and systems are provided for monitoring and regulating radiofrequency (RF) ablation therapy to improve quality of ultrasound imaging. Feedback is provided from real-time ultrasound imaging, and RF power is altered in response to a feedback signal to improve image quality.
Claims19
A method for monitoring and regulating radiofrequency (RF) ablation therapy to improve quality of imaging, the method comprising:
- imaging a target area using an ultrasound imaging system to provide a pre-treatment image for calibration, and maintaining continuous real-time acquisition of at least one additional image;
- inserting an RF probe into the target area and generating an RF current to heat the target area near a tip of the RF probe, and producing at least one intra-operative image from the continuous real-time acquisition;
- and
- comparing the pre-treatment image and the intra-operative image to generate a feedback signal, wherein the feedback signal is relayed to an RF power generator, and altering RF power in response to the feedback signal, to improve quality of the intra-operative image.
1 more element
A system comprising:
- an ultrasound scanner, wherein the ultrasound scanner acquires a pre-treatment image of a target area for calibration, and at least one additional image of the target area;
- a radiofrequency (RF) probe, wherein the RF probe is inserted into the target area;
- an RF power generator;
- and
- a bubble detector, wherein the bubble detector indicates a presence of at least one bubble in the target area and produces a feedback signal, wherein the RF power generator is altered in response to the feedback signal.
2 more elements
Dependencies are inferred from the claim text.