Lung biopsy method under virtual location CT guidance

A technology of biopsy and lung, applied in surgical navigation system, vaccination, ovulation diagnosis, medical science, etc., can solve the problem that the influence of respiratory movement on the accuracy of lung puncture cannot be ruled out, and achieve the effect of improving the accuracy of puncture and eliminating the influence

Inactive Publication Date: 2017-11-24
陈晓阳
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technique only considers the three-dimensional shape of the lung lesions, and the non-respir

Method used

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  • Lung biopsy method under virtual location CT guidance
  • Lung biopsy method under virtual location CT guidance
  • Lung biopsy method under virtual location CT guidance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A lung biopsy method guided by virtual positioning CT, the method comprising:

[0025] (1) Image simulation before puncture;

[0026] (2) Simulation-guided puncture;

[0027] (3) CT examination and completion of puncture.

Embodiment 2

[0029] According to the virtual positioning CT-guided lung biopsy method described in Example 1, the method of step (1) image simulation before puncture is to scan the prominent lesions and the localization marks on the body surface through the CT machine, wherein the prominent lesions and the localization marks on the body surface are lesions With the breathing movement and body surface positioning marks, through the image virtual software, according to the relative position changes of lung lesions and body surface positioning marks in different states of breathing motion obtained by CT scan, virtual lesions and positioning marks animation.

Embodiment 3

[0031] According to the virtual positioning CT-guided lung biopsy method described in Embodiment 1 or 2, it is characterized in that: step (2) the method of simulating guided puncture is that the image software is based on the lung lesions obtained from the CT scan before puncture and the body surface positioning electrodes. Simulate the moving picture along with the breathing movement, and the real-time moving picture of the body surface positioning marks obtained by the electromagnetic positioning system, simulate the virtual moving picture of the lesion, and transmit the virtual moving picture of the lesion and the real-time moving picture of the puncture needle tip to the imaging system. The simulation software enters the imaging system. Under the guidance of the displayed needle tip and lesion moving picture of the imaging system, the operator manipulates the direction and depth of the puncture needle, and penetrates the needle tip into the virtual lesion. On the display sc...

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Abstract

The invention discloses a lung biopsy method guided by virtual positioning CT, which is characterized in that: the method includes: (1) image simulation before puncture; (2) simulation-guided puncture; (3) CT verification to complete the puncture. The virtual positioning CT-guided lung biopsy method uses electromagnetic positioning methods combined with CT images to form a virtual image; the position changes of the body surface magnetic electrode positioning marks under different respiratory motion states, and the dynamics of virtual lung lesions moving with respiratory motion The image can guide the lung puncture biopsy needle with the magnetic positioning mark on the tip to accurately complete the lung puncture, and eliminate the influence of breathing movement on the lung puncture positioning. The lung biopsy method under the guidance of virtual positioning CT uses several electromagnetic marks to assist in the positioning of lung lesions and improve the accuracy of puncture. puncture.

Description

technical field [0001] The invention relates to the technical field of a lung biopsy method guided by virtual positioning CT, in particular to a lung biopsy method guided by virtual positioning CT. Background technique [0002] Lung biopsy is critical in the diagnosis of lung disease. Color Doppler ultrasound-guided percutaneous lung biopsy can be used for lung lesions close to the chest wall, and there is no difficulty in positioning. It can also be guided by CT, because the position of the lesion close to the chest wall changes less and is easier. For lung lesions that are not close to the chest wall, ultrasound-guided puncture cannot be used because ultrasound cannot penetrate air, and only CT-guided puncture can be used. Because the lesion moves with the respiratory movement, especially the position of the lower lung lesion can change up to 4 to 8 cm with the respiratory movement, resulting in difficulty in puncture. Especially for lesions smaller than 2 cm in the low...

Claims

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Application Information

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IPC IPC(8): A61B10/02A61B17/34A61B34/20
CPCA61B10/0233A61B17/3403A61B2034/2051
Inventor 陈晓阳施丽泳王剑铭
Owner 陈晓阳
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