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CT and ultrasonic image fused minimally invasive intervention guiding system and method

A technology of ultrasound imaging and CT imaging, applied in the field of image guidance system for puncture surgery, can solve the problem of low image resolution, achieve the effect of ensuring the effect of surgery and improving the accuracy of puncture

Active Publication Date: 2019-12-06
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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  • CT and ultrasonic image fused minimally invasive intervention guiding system and method
  • CT and ultrasonic image fused minimally invasive intervention guiding system and method
  • CT and ultrasonic image fused minimally invasive intervention guiding system and method

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Embodiment Construction

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

[0041] Such as figure 1 with figure 2 As shown together, one embodiment of the present invention provides a minimally invasive interventional 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 CT machine 1 and CT scanning bed 2;

[0042] CT imaging equipment for CT scanning the body of patient 3 to obtain CT image sequences;

[0043] The ultrasound probe 8 is used to obtain a...

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Abstract

The invention discloses a CT and ultrasonic image fused minimally invasive intervention guiding system and method. A specific implementation of the method comprises steps as follows: CT scanning is performed to obtain a CT image sequence; 3D reconstruction is performed on the CT image sequence, and a 3D model of a body of the patient is obtained; an ultrasonic image of the body of the patient is obtained; the position relation among the patient, an ultrasonic probe and a puncture needle under coordinates of a magnetic field generator is obtained; through coordinate conversion, the position relation among the patient, the ultrasonic probe and the puncture needle under coordinates of the magnetic field generator is converted into the position relation among the patient, the ultrasonic probeand the puncture needle under coordinates of the CT image, and section position of the ultrasonic image in the 3D model is acquired; the 3D model is cut according to the section position of the ultrasonic image in the 3D model, and a CT image section corresponding to the ultrasonic image is obtained; and meanwhile, the ultrasonic image and the CT image section corresponding to the ultrasonic imageare displayed, and position of the puncture needle in the CT image is displayed. By means of the embodiment, a doctor can see the ultrasonic image and the high-definition CT image in real time, and the puncture accuracy can be effectively improved.

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 biopsy, microwave, radiofrequency or cryoablation is performed. For minimally invasive interventional surgery, the accuracy of the puncture has a great impact on the efficacy. [0003] CT images and ultrasound images, two methods of obtaining image data in patients, are currently commonly used clinically guided puncture methods. The principles of CT imaging and ultrasound imag...

Claims

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Application Information

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Patent Type & Authority Applications(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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