Detection method and system for determining pulmonary overexpansion by using electrical impedance tomography

A technology of electrical impedance tomography and over-inflation, applied in the directions of diagnostic recording/measurement, diagnosis, application, etc., can solve problems such as lung over-inflation

Active Publication Date: 2021-09-28
GUANGZHOU INST OF RESPIRATORY DISEASE +1
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  • Description
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Problems solved by technology

However, even with a small tidal volume (for example, a tidal volume of 6 to 8 ml/kg) or sufficient positive end-expiratory pressure to ventilate the patient lung-protectively through the ventilator, there

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  • Detection method and system for determining pulmonary overexpansion by using electrical impedance tomography
  • Detection method and system for determining pulmonary overexpansion by using electrical impedance tomography
  • Detection method and system for determining pulmonary overexpansion by using electrical impedance tomography

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Embodiment Construction

[0025]Hereinafter, a preferred embodiment of the present disclosure will be described in detail with reference to the drawings. In the following description, the same components are given the same reference numerals, and the repetition will be omitted. In addition, the drawings are merely illustrative, and the ratio of the size of the components or the shape of the component can be different from the actual difference. It should be noted that the terms "comprising" and "having" and any variation of the present disclosure, such as the process, method, system, product, or device of a series of steps or units thereof, such as the process, method, system, product, or device of a series of steps or units thereof, not necessarily limited to clear columns These steps or units can include or have other steps or units that are not clearly listed or for these processes, methods, products, or equipment. All of the methods described in this disclosure can be performed in any suitable order un...

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Abstract

The invention describes a detection method for determining pulmonary overexpansion by using electrical impedance tomography. The detection method is used for detecting at least one factor causing pulmonary overexpansion based on electrical impedance tomography images. The detection method comprises the following steps of: judging whether an area with pulmonary overexpansion exists in an area of interest or not based on first pulmonary compliance corresponding to first positive end expiratory pressure and second pulmonary compliance corresponding to second positive end expiratory pressure; judging whether pulmonary overexpansion is caused by increase of positive end expiratory pressure or not based on change of gas capacity reference values of actual end expiratory pressure of the second positive end expiratory pressure and the first positive end expiratory pressure and change of gas capacity reference values of end expiratory pressure predicted based on the first pulmonary compliance; and judging whether pulmonary overexpansion is caused by tidal volume or not based on change of actual gas capacity reference values of end inspiratory pressure of the second positive end expiratory pressure and the end expiratory pressure of the first positive end expiratory pressure and change of gas capacity reference values predicted based on the first pulmonary compliance. Therefore, factors causing pulmonary overexpansion can be determined.

Description

Technical field [0001] The present disclosure generally relates to a detection method and system of determining excessive expansion of pulmonary excessive imaging using a resistance resistance. Background technique [0002] In response and critical medicine, mechanical ventilation treatment is applied properly, and many of the lives of critically ill patients can be used. The ventilator is an effective means of manually replacing autonomous ventilation function, which has been commonly used in clinical scenes (such as pulmonary replete, positive pressure titration or pulmonary resequential evaluation) to prevent or treat respiratory failure. . [0003] Currently, in the clinic, the corresponding lung protective ventilation strategy is often provided by ventilator to lung protective ventilation for patients. For example, in the case of ensuring ventilation, the amount of moisture is lowered by the ventilator, then give a certain amount of exhaled at the end of the actuator to open...

Claims

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Application Information

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IPC IPC(8): A61B5/0536A61B5/08
CPCA61B5/0536A61B5/0806
Inventor 桑岭陆彧
Owner GUANGZHOU INST OF RESPIRATORY DISEASE
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