Fat temperature measuring method and device

A measurement method and fat technology, which is applied in diagnostic recording/measurement, ultrasound therapy, medical science, etc., and can solve problems such as slow scanning speed, SAR exceeding the standard, and inaccurate T2 value detection

Active Publication Date: 2018-07-10
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for measuring fat temperature, so as to solve the problems in the prior art that the T2 value detected...

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  • Fat temperature measuring method and device
  • Fat temperature measuring method and device
  • Fat temperature measuring method and device

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[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] The purpose of the embodiments of the present invention is to provide a method for measuring fat temperature, so as to solve the problem of magnetic resonance temperature imaging based on the principle of proton resonance frequency shift (PRFS) in the existing magnetic resonance temperature monitoring method. It is widely used in temperature monitoring during the treatment of various tissues. This method is mainly based on the ideal linear relationship between the proton resonance frequency of water molecules and temperature changes. However, the resonance frequency of protons in fat is diff...

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Abstract

The invention provides a fat temperature measuring method. The fat temperature measuring method comprises the following steps: detecting spinning-spinning relaxation time T2 of fat tissue based on aninterval scanning three-echo steady state iTESS sequence; and according to the corresponding relation between the fat temperature marked in advance and the spinning-spinning relaxation time T2 of thefat tissue, searching for the fat temperature corresponding to the detected spinning-spinning relaxation time T2. For the fat temperature measuring method realizing T2 detection based on the iTESS sequence, the pure constraint of the fat tissue is eliminated, rapid detection can be carried out, a radio-frequency pulse flip angle used by the sequence is small, and the problem that an SAR value exceeds the standard seldom occurs.

Description

technical field [0001] The invention belongs to the field of fat temperature measurement, in particular to a method and device for measuring fat temperature. Background technique [0002] High-intensity focused ultrasound (HIFU) can use the penetration and energy deposition of ultrasound to focus low-energy ultrasound in vitro on target tissues at a specific depth, causing the temperature in the focal region to rise rapidly to 60°C, causing protein denaturation And tissue coagulation necrosis without damaging the surrounding normal tissue, HIFU therapy has gradually developed into an important tumor treatment method. Real-time monitoring of the temperature of the target tissue during HIFU treatment is the key to the success of the treatment. [0003] Magnetic resonance imaging has become an important means of HIFU treatment monitoring due to its multi-directional stereoscopic imaging, unique temperature monitoring, and multiple tissue contrasts. The temperature monitoring ...

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Application Information

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IPC IPC(8): A61B5/01A61B5/055A61N7/02
CPCA61B5/01A61B5/055A61N7/02
Inventor 郑海荣刘新乔阳紫邹超帖长军程传力孟德
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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