Superficial tumor ultrasonic thermotherapy system guided by magnetic resonance
A thermotherapy and magnetic resonance technology, applied in ultrasonic therapy, therapy, medical science and other directions, can solve the problems of inability to non-destructively measure the internal temperature of the human body, restrict the popularization and application of ultrasonic thermotherapy methods, etc., and achieve good anatomical positioning ability and installation. Simple, safety-enhancing effect
Active Publication Date: 2013-02-13
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
However, the traditional ultrasonic thermotherapy method cannot realize the non-destructive measurement of the internal temperature of the human body, and the hyperthermia temperature is the key factor to ensure the safety and effectiveness of the ultrasonic thermotherapy method. Popularization and Application of Heat Therapy
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[0026] Such as figure 1 As shown, a magnetic resonance-guided ultrasonic thermotherapy system for superficial tumors is used to measure and control the temperature of superficial tumor lesions. The lesion in the body is heated through the ultrasonic thermotherapy system, and the temperature of the lesion in the body is non-destructively measured by MRI, and fed back to the ultrasonic thermotherapy system. The ultrasonic thermotherapy system receives temperature information through the main control unit and changes the output through the temperature control algorithm. Parameters such as voltage, frequency, and duty cycle adjust the output power of the resonant power amplifier to keep the temperature of the lesion at 43°C during the heating process. At the same time, for tumor lesions of different depths, control the circulating cooling water in the water bag that is in contact with the human body The temperature can avoid skin burns due to ultrasonic heating, realize precise po...
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The invention relates to a superficial tumor ultrasonic thermotherapy system guided by magnetic resonance. The superficial tumor ultrasonic thermotherapy system guided by the magnetic resonance is used to observe and control the temperature of a focus target area of a superficial tumor. The superficial tumor ultrasonic thermotherapy system comprises a main control unit, a power ultrasonic transducer exciting unit, a cooling unit, an ultrasonic transducer, a magnetic resonance imaging (MRI) scanning unit and a MRI temperature processing unit. The main control unit is respectively connected with the power ultrasonic transducer exciting unit, the cooling unit, the MRI scanning unit and the MRI temperature processing unit. The power ultrasonic transducer exciting unit is sequentially connected with the ultrasonic transducer, the focus target area, the MRI scanning unit and the MRI temperature processing unit. The cooling unit is connected with the ultrasonic transducer. The superficial tumor ultrasonic thermotherapy system enables MRI and ultrasonic thermotherapy technology to be combined, so that quantification, real-time and accurate controlling of the therapeutic process of ultrasonic thermotherapy can be achieved. Compared with the prior art, the superficial tumor ultrasonic thermotherapy system guided by the magnetic resonance has the advantages that undamaged, real-time and accurate treatment to the superficial tumor can be achieved, mounting is simple, cost is low and the like.
Description
technical field [0001] The invention relates to a temperature measurement and control system for a tumor lesion target area, in particular to a magnetic resonance-guided ultrasonic thermotherapy system for superficial tumors. Background technique [0002] The morbidity and mortality of tumors remain high, and traditional treatment methods include invasive treatments such as surgery, radiotherapy, and chemotherapy. However, for advanced patients, surgical trauma is large, and excessive radiotherapy and chemotherapy can damage important organs and tissues of the human body. Therefore, non-invasive and minimally invasive tumor treatment methods are particularly important. [0003] The use of ultrasonic thermotherapy (including the combination of ultrasonic hyperthermia and radiotherapy and chemotherapy) to treat tumors is a green, non-invasive, safe and effective tumor treatment method. The principle of ultrasonic hyperthermia therapy is to use ultrasound to heat the lesion to...
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IPC IPC(8): A61N7/02A61B5/055
Inventor 沈国峰陈亚珠
Owner SHANGHAI JIAO TONG UNIV
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