Magnetic resonance temperature imaging method and system based on biological heat transfer model

A technology of heat transfer model and imaging method, which is applied in the field of biomedical engineering, can solve the problems of time resolution, spatial resolution and image quality, and achieve the effects of increasing applicability, improving reconstruction error, and improving accuracy

Active Publication Date: 2021-03-23
应葵 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the hardware facilities and selected sequences are fixed, time resolution, spatial resolution and image quality cannot be achieved simultaneously in the imaging process.
Therefore, there is room for improvement in the above techniques

Method used

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  • Magnetic resonance temperature imaging method and system based on biological heat transfer model
  • Magnetic resonance temperature imaging method and system based on biological heat transfer model
  • Magnetic resonance temperature imaging method and system based on biological heat transfer model

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Embodiment Construction

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0056] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present ...

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Abstract

The invention discloses a magnetic resonance temperature imaging method and system based on a biological heat transfer model. The method comprises the following steps of S101, introducing the biological heat transfer model into a hybrid algorithm, and modifying a regular constraint term, S102, performing optimization processing and real-time updating on parameters of the biological heat transfer model by utilizing a magnetic resonance temperature imaging model in a temperature distribution calculation process, and S103, combining the biological heat transfer model with the magnetic resonance temperature imaging model by using a Kalman filter, and iteratively updating the image. According to the magnetic resonance temperature imaging method based on the biological heat transfer model, on one hand, the inhibition capability of a hybrid algorithm on motion and temperature drift can be reserved; on the other hand, the reconstruction error of the area with small temperature change can be greatly improved, the applicability of the hybrid algorithm is improved, and the prediction accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a magnetic resonance temperature imaging method and system based on a biological heat transfer model. Background technique [0002] Hyperthermia technology, as a minimally invasive or even non-invasive new tumor treatment method, has the advantages of low mortality, low recurrence rate, and rapid postoperative recovery. The core purpose of tumor hyperthermia is to inactivate tumor cells while ensuring The safety of healthy tissue cells. In order to achieve this goal, it is necessary to pay close attention to the temperature changes in the heated area and surrounding normal tissues during tumor hyperthermia, so as to evaluate the progress of the operation according to the thermal tolerance of different tissues and make a reasonable operation plan. [0003] Magnetic resonance temperature imaging (magnetic resonance temperature imaging, MRTI) can perform near-real-ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/36G06T5/20A61B5/055
CPCG01K7/36G06T5/20A61B5/055
Inventor 应葵唐文丁
Owner 应葵
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