Method and device for monitoring temperature distribution of ablation heat field

A technology of temperature distribution and thermal field, which is applied in the field of bio-optics, can solve the problems of limited monitorable area and risk of tumor implantation, and achieve the effect of meeting clinical needs, large temperature measurement range and high temperature measurement accuracy

Active Publication Date: 2019-01-18
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0004] The present invention is used to solve the problem of invasive temperature measurement methods such as thermal resistance and thermocouple in the prior art, which are traumatic to

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  • Method and device for monitoring temperature distribution of ablation heat field
  • Method and device for monitoring temperature distribution of ablation heat field
  • Method and device for monitoring temperature distribution of ablation heat field

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[0046] In order to make the technical features and effects of the present invention more obvious, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings. The present invention can also be described or implemented in other different specific examples. The equivalent transformations done within all belong to the protection category of the present invention.

[0047] In the description of this specification, descriptions referring to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "examples", "specific examples", or "some examples" etc. mean It means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Fu...

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Abstract

The invention provides a method and a device for monitoring the temperature distribution of the ablation heat field. The method includes control ablation probe located in tissue to be tested to emit laser signal so as to excite photoacoustic signal from ablation probe and tissue to be tested, and controlling ablation probe to emit laser signal from ablation probe to emit photoacoustic signal. Detecting a photoacoustic signal using an ultrasonic device positioned on a surface of a tissue to be monitored; The temperature distribution is calculated according to the photoacoustic signal. The ablation heat field temperature distribution monitoring method and device provided by the invention can realize large-scale non-invasive temperature monitoring, have the characteristics of non-invasive, wide temperature measuring range and high temperature measuring accuracy, and can meet clinical requirements.

Description

technical field [0001] The invention belongs to the field of bio-optics, and in particular relates to a method and a device for monitoring the temperature distribution of an ablation heat field. Background technique [0002] Real-time and accurate monitoring of the temperature distribution of the ablation thermal field is a major clinical requirement in the thermal ablation process. The temperature distribution of the thermal field directly determines the location, size and shape of the ablation lesion, and is considered to be the decisive factor for the prognosis of tumor ablation therapy. In the follow-up study of clinical tumor ablation therapy, failure to meet the ablation boundary, that is, the ablation area is smaller than the tumor area, is an independent risk factor for recurrence after ablation therapy, and it is also the most direct inducing factor. Effectively controlling the size of the ablation area can not only ensure that the tumor is completely cleared, but ...

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Application Information

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IPC IPC(8): A61B18/00A61B5/01A61B5/00
CPCA61B5/0095A61B5/015A61B18/00A61B2018/00577A61B2018/00791
Inventor 刘成波白园园宋亮郑荣琴丛冰李凯龚小竞
Owner SHENZHEN INST OF ADVANCED TECH
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