Experiment equipment used for verifying ultrasonic wave temperature imaging accuracy

Abstract

The invention relates to experiment equipment used for verifying ultrasonic wave temperature imaging accuracy. The equipment comprises three portions which are a radio frequency ablation system, an ultrasonic wave imaging system and a temperature detection system. The radio frequency ablation system comprises a radio frequency ablation probe used for tissue heating. The ultrasonic wave imaging system uses a linear matrix ultrasonic probe to monitor a whole process of radio frequency ablation and acquire a radio frequency signal, and uses an echo time shift technology to estimate tissue temperature distribution. The equipment is characterized in that the temperature detection system includes two portions which are an infrared camera and a thermocouple; the infrared camera directly faces a surface of tissue heating and is used to acquire temperature distribution of the surface of a tissue heating process; and the thermocouple and the radio frequency ablation probe are tied together and are inserted into tissue so as to acquire a temperature of a tissue heating center. Through two kinds of temperature information acquired by the infrared camera and the thermocouple, validity of an ultrasonic wave temperature imaging system to tissue temperature distribution estimation is assessed.

Description

technical field [0001] The invention relates to the technical fields of medical image processing, ultrasonic temperature imaging and radiofrequency ablation, and relates to an experimental device for verifying the accuracy of ultrasonic temperature imaging. Background technique [0002] Primary liver cancer is the fifth most common cancer worldwide and the third leading cause of death among all cancers [1]. The treatment of liver cancer can generally be divided into two ways: curative and palliative [2]. The former includes transplantation, surgical resection, ablation therapy, etc., while the latter includes transarterial embolization (TAE or TACE), radiation therapy, and recently developing targeted therapy. [0003] In radical treatment, radiofrequency ablation (RFA) is a treatment method that has gradually received attention in ablation treatment in recent years, and has become the mainstream of liver cancer treatment in recent years[3-4]. Its basic instrument composit...

AI Technical Summary

Problems solved by technology

[0005] However, no definitive evidence has been found until now that there is a corresponding correlation between the tissue temperature estimated by the ultrasound temperature imaging algorithm and the actual temperature distribution of the tissue.

Images