Thermotherapy nondestructive temperature measuring equipment based on type-B ultrasonic image

Abstract

The invention relates to a B-ultrasound image-based non-destructive temperature measuring device for hyperthermia in the technical field of biomedical engineering, comprising: a computer-controlled relay switch and a power amplifier module, a computer-controlled B-ultrasound image acquisition module, a combined probe module, a computer-controlled relay switch and a power amplifier module. The power amplifier module sets and adjusts the output power of the focused transducer probe in the combined probe module, the duty cycle of the pulse wave and the emission time to control the emission dose; the computer controls the B-ultrasound image acquisition module to determine the acquisition of the B-ultrasound image by the image acquisition card , set the frequency and times of image acquisition in the computer, and feed back the collected images to the computer in real time; the combination probe module combines the B-ultrasound probe and the focusing transducer probe together, so that the B-ultrasound image can be better projected and focused Part of the information in the field, and finally let the computer collect the B-ultrasound image. The invention adopts ultrasound to detect the temperature change, not only the device used is small, but also the operation is simple and the cost is low.

Description

technical field [0001] The invention relates to a device in the technical field of medical equipment engineering, in particular to a non-destructive temperature measurement device for hyperthermia based on B-ultrasound images. Background technique [0002] High-intensity focused ultrasound (HIFU) hyperthermia combined with chemotherapy and radiotherapy can effectively inhibit the growth of tumor cells, and the therapeutic effect is remarkable. During hyperthermia, the control of HIFU emission dose is very important. Accurate dose control not only helps to improve the therapeutic effect, but also avoids tissue burns caused by overheating, thereby reducing the pain of patients and reducing the risk of surgery. However, so far, there is still a lack of effective methods to control the emission dose of HIFU clinically. [0003] At present, the method of clinically controlling the emission dose of HIFU hyperthermia is that the clinician controls the emission by setting and adju...

AI Technical Summary

Problems solved by technology

There are several problems in this method: 1) Due to the individual differences of patients, there is no uniform and applicable emission dose

[0004] After searching the literature of the prior art, it was found that K.Hynynen et al published "MRI guided and monitored focused ultrasoundthermal ablation methods: a review of progress," in Int J Hyperthermia, 20(7), pp.725-737, 2004, It is proposed that nuclear magnetic resonance (MRI) is a potential method to assist in achieving dose control of HIFU hyperthermia, but it is still in the experimental stage

Nuclear magnetic resonance (MRI) has the characteristics of high temperature measurement accuracy (up to 0.5 degrees Celsius), but MRI has the following limitations: 1) MRI equipment is expensive, which limits the popularization and promotion of HIFU temperature measurement; 2) MRI imaging speed is slow And image processing is complex, it is difficult to realize real-time temperature monitoring; especially for HIFU hyperthermia, the temperature of the focal area rises to above 75 degrees Celsius in an instant (0.5s~5s), which brings new challenges to real-time monitoring

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