A minimally invasive interventional guidance system and method for ct and ultrasound image fusion

An ultrasound imaging and guidance system technology, applied in the field of image guidance systems for puncture surgery, can solve problems such as low image resolution, and achieve the effects of ensuring surgical results and improving puncture accuracy

Active Publication Date: 2021-09-28
GENERAL HOSPITAL OF PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ultrasound image-guided puncture is real-time imaging, but its image resolution is low

Method used

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  • A minimally invasive interventional guidance system and method for ct and ultrasound image fusion
  • A minimally invasive interventional guidance system and method for ct and ultrasound image fusion
  • A minimally invasive interventional guidance system and method for ct and ultrasound image fusion

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Embodiment Construction

[0040] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0041] like figure 1 and figure 2 Commonly shown, one embodiment of the present invention provides a minimally invasive intervention guidance system for fusion of CT and ultrasound images, including: CT imaging equipment, ultrasound probe 8, electromagnetic tracking equipment, computer equipment and display equipment, wherein CT imaging The equipment includes a CT machine 1 and a CT scanning bed 2;

[0042] A CT imaging device, used for performing CT scanning on the body of the patient 3 to obtain a CT image sequence; ...

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Abstract

The invention discloses a minimally invasive intervention guidance system and method for fusion of CT and ultrasonic images. A specific embodiment of the method includes performing a CT scan to obtain a CT image sequence; performing three-dimensional reconstruction on the CT image sequence to obtain a three-dimensional model of the patient's body; obtaining an ultrasonic image of the patient's body; obtaining the patient, the ultrasonic probe, and the The positional relationship between the puncture needles; through coordinate transformation, the positional relationship between the patient, the ultrasound probe and the puncture needle in the coordinates of the magnetic field generator is converted into the coordinates of the CT image, and the cross-sectional position of the ultrasound image in the three-dimensional model is obtained; according to the ultrasound image Cut the 3D model at the section position in the 3D model to obtain the CT image section corresponding to the ultrasound image; simultaneously display the ultrasound image and the CT image section corresponding to the ultrasound image, and display the position of the puncture needle in the CT image. This embodiment enables physicians to view ultrasound images and high-definition CT images in real time, which can effectively improve puncture accuracy.

Description

technical field [0001] The invention relates to the technical field of medical equipment. More specifically, it relates to an image guidance system and method for puncture surgery. Background technique [0002] Puncture surgery is a minimally invasive interventional medical method widely used at present. For example, in the field of tumor treatment, minimally invasive interventional therapy is an important treatment method. In the implementation of minimally invasive interventional therapy, a rigid metal needle is punctured into the tumor site in the patient (the tumor site is called the target), and then a biopsy, microwave, radiofrequency or cryoablation is performed. For minimally invasive interventional surgery, whether the puncture is accurate or not has a great influence on the curative effect. [0003] CT imaging and ultrasound imaging, two ways to obtain imaging data in the patient's body, are currently the commonly used ways to guide puncture in clinical practice...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34A61B90/00A61B34/20
CPCA61B17/3403A61B2017/3413A61B34/20A61B90/37A61B90/39A61B2034/2051A61B2034/2063A61B2034/2065A61B2090/371A61B2090/3762A61B2090/378A61B2090/3954
Inventor 张肖肖越勇张啸波何晓锋王小平
Owner GENERAL HOSPITAL OF PLA
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