Magnetic resonance temperature measurement method and magnetic resonance temperature measurement system

A technology of temperature measurement and magnetic resonance, which is applied in the field of magnetic resonance temperature measurement methods and systems, can solve problems such as the inability to realize real-time monitoring of temperature changes, and achieve the effect of real-time monitoring

Active Publication Date: 2012-06-13
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Traditional tumor thermal ablation uses traditional scanning sequences for imaging, these scanning sequences include echo planar imaging (EPI for short) and gradient echo sequences, etc. Although the images obtained through image acquisition through these scanning sequences It can better maintain the phase in

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  • Magnetic resonance temperature measurement method and magnetic resonance temperature measurement system
  • Magnetic resonance temperature measurement method and magnetic resonance temperature measurement system
  • Magnetic resonance temperature measurement method and magnetic resonance temperature measurement system

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Embodiment Construction

[0054] In one embodiment, such as figure 1 As shown, a magnetic resonance temperature measurement method includes the following steps:

[0055] Step S110, sampling to obtain the navigation data set and the image data set, and reconstructing to obtain the corresponding phase map.

[0056] In this embodiment, in order to obtain images with high spatio-temporal resolution to monitor the temperature in real time, the field of view is sampled to obtain navigation data sets with high temporal resolution and image data sets with high spatial resolution, and then through these two data set for image reconstruction. After the data acquisition and reconstruction are completed, not only the magnitude map can be obtained, but also the corresponding phase map can be obtained.

[0057] In one embodiment, the specific process of the above step S110 is as follows: the navigation data set and the image data set are obtained by sampling through the partially separable function, and the image ...

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Abstract

A magnetic resonance temperature measurement method comprises the following steps of sparsely sampling to obtain a navigation data set and an image data set, and rebuilding to obtain corresponding phase pictures; obtaining phase change values of an area to be tested through the phase pictures; and obtaining temperature change values of the area to be tested through the phase change values. In the magnetic resonance temperature measurement method and a magnetic resonance temperature measurement system, two groups of data can be collected through view, images with high space-time resolution ratio can be rebuilt, simultaneously phase information in the images is not affected in the rebuilding process, and corresponding phase pictures can be obtained. Therefore, temperature change values can be measured according to the phase pictures, real-time monitoring on temperature change in magnetic resonance is achieved, and simultaneously requirements of high time resolution ratio and high space resolution ratio for the images are met.

Description

【Technical field】 [0001] The invention relates to magnetic resonance imaging technology, in particular to a method and system for measuring magnetic resonance temperature. 【Background technique】 [0002] Tumor thermal ablation has the advantages of small trauma and low postoperative recurrence rate, so it is widely used in the treatment of prostate and uterine fibroids. Tumor thermal ablation is to increase the temperature of lesion tissue by heating and kill it. Therefore, for To ensure the smooth progress of tumor thermal ablation in the treatment, it is necessary to quickly and accurately measure the temperature changes in the diseased tissue, so that doctors can understand the current treatment effect, predict the necrotic area, modify the treatment plan in time, and avoid damaging the health around the diseased area. organize. [0003] Because the temperature measurement technology based on magnetic resonance can not only accurately locate the lesion tissue, but also c...

Claims

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Application Information

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IPC IPC(8): A61B5/01A61B5/055
Inventor 史彩云谢国喜邱本胜刘新冯翔
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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