Device and method for detecting fading of ultrasonic contrast agent

Abstract

The invention provides a device and a method for detecting fading of an ultrasonic contrast agent, belongs to the technical field of ultrasonic treatment, and can solve the existing problems that a doctor needs to judge the fading condition of the ultrasonic contrast agent according to own experience, and the treatment efficiency and the treatment safety are greatly influenced due to the fact that no clear time regulation exists in the process. The device for detecting fading of the ultrasonic contrast agent comprises a first transceiver unit used for transmitting detection signals to the tissue of a focal region injected with the ultrasonic contrast agent and receiving first feedback signals formed by reflecting the detection signals by the tissue of the focal region injected with the ultrasonic contrast agent, a first extraction unit used for extracting first characteristic parameters of the first feedback signals according to the first feedback signals, a comparison unit used for comparing the first characteristic parameters with pre-stored initial characteristic parameters and generating a comparison result, and a judging unit used for judging whether the ultrasonic contrast agent fades or not according to the comparison result.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic therapy, and in particular relates to a detection device and method for the disappearance of an ultrasonic contrast agent. Background technique [0002] High Intensity Focused Ultrasound (HIFU) technology has been widely used in medical, scientific research, material processing and other fields. It uses the focusability and penetrability of ultrasound to focus ultrasound at a specific position after passing through the human body. , so that the temperature of the focal area rises and coagulation necrosis occurs, so as to achieve the purpose of treatment. At the same time, since the ultrasonic energy density is low in the non-focus area, normal tissues outside the focus area can be guaranteed to be unaffected or be affected to an acceptable degree. [0003] In clinical practice, while HIFU treatment is used, ultrasound contrast agents are generally injected to enhance medical ultrasound detecti...

AI Technical Summary

Problems solved by technology

[0004] The inventors have found that there are at least the following problems in the prior art: due to the uncontrollability of the inertial cavitation of ultrasound contrast agents, doctors cannot control the damage caused by ultrasound contrast agents during treatment. Therefore, in general, doctors need to Treatment begins only after the contrast agent in the tissue in the isofocal area is completely metabolized

However, there is no method and equipment in the prior art that can detect whether the ultrasound contrast agent has faded. Doctors need to judge the fade of the ultrasound contrast agent based on their own experience, and there is no clear time limit for this process. If the time is too long, If the time is too short, it will affect the safety of treatment

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