Ultrasonic temperature imaging method based on plane waves

Abstract

The invention discloses an ultrasonic temperature imaging method based on plane waves. The method includes the following steps that ultrasonic signals are transmitted to a test area according to different preset deflection angles with a preset number at the initial moment, echo signals sent back from the test area are received, and images with a preset number are obtained; the obtained images with the preset number are superimposed according to preset conditions, and a first frame of compound image is obtained; compound images with a first number in the test area are obtained within set time; accumulation is conducted on the temperature changes between adjacent frames of compound images of the compound images with the first number according to the time sequence, and a two-dimensional temperature distribution diagram corresponding to the last frame of compound image is obtained; a B-ultrasonic image of one frame of compound image is obtained; the B-ultrasonic image and the two-dimensional temperature distribution diagram are merged, and a two-dimensional temperature image of the test area is obtained. According to the ultrasonic temperature imaging method, very good sensitivity is achieved on ultrasonic radio frequency data changes caused by temperature changing, estimation of the temperature is facilitated, and the resolution ratio and the contrast ratio of the image can be ensured.

Description

technical field [0001] The invention relates to the technical field of temperature detection, in particular to an ultrasonic temperature imaging method based on plane waves. Background technique [0002] With the rapid development of medical technology, incurable diseases such as tumors have begun to be gradually overcome. However, there are many types of tumors with different characteristics. Therefore, tumor treatment is still a difficult point in research, and the treatment methods are also diversified. [0003] Currently, effective tumor treatment methods include: surgical resection, radiotherapy, chemotherapy, hyperthermia, thermal ablation, and minimally invasive interventional therapy. [0004] Benign tumors can be effectively removed by surgery, but malignant tumors are difficult to cure due to their high differentiation, fast growth and easy metastasis. Therefore, try to use radiotherapy, chemotherapy and other methods. Among them, the thermosensitive lipid-targe...

AI Technical Summary

Problems solved by technology

[0013] Based on this, it is necessary to provide a plane wave-based ultrasonic temperature imaging method that can sensitively measure rapid temperature changes in view of the low sensitivity of traditional ultrasonic temperature measurement technology to temperature changes in the measurement area.

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