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Three-dimensional visualization method for maps in neurosurgery navigation system

A surgical navigation and neurosurgery technology, applied in the field of medical image processing and application, can solve the problem that patient images are difficult to consider, and achieve the effect of improving registration accuracy and avoiding repeated operations.

Inactive Publication Date: 2010-09-15
JIANGSU APON MEDICAL TECHNOLOGY CO LTD
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Problems solved by technology

Since the SW map is limited to some areas of the internal nerve, it is difficult to take into account other relevant parameters such as the size of the nerve chamber and the size of the head when it is registered with the actual patient image, which is a difficulty in this study
In addition, the reconstruction of 2D printed atlases to 3D stereoscopic images is also a difficult point, which is expected to be resolved

Method used

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  • Three-dimensional visualization method for maps in neurosurgery navigation system
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  • Three-dimensional visualization method for maps in neurosurgery navigation system

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Embodiment Construction

[0032] Such as figure 1 with figure 2 as shown, figure 2 It is the cooperation process of the variable scale grid method and the segmented local linear registration algorithm. After describing the process of dividing the input image into 12 sub-regions according to the AC-PC points and creating the variable scale grid PGS , gives the process of implementing registration and fine-tuning using the method of segmented local linear registration.

[0033] The following embodiments are provided in conjunction with the content of the execution method of the present invention:

[0034] Such as figure 1 As shown, when the patient's 3D image instance is read into the system, the doctor implements the method in the following six steps:

[0035](1) AC-PC setting: When the doctor selects the "AC-PC setting" function in the system menu, the system will give the initial AC-PC point in the patient image, and display it in the window with a color mark. The physician then uses the mouse ...

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Abstract

The invention discloses a three-dimensional visualization application method for anatomic maps in a neurosurgery navigation system, which belongs to the technical field of medicinal image processing and application. The method comprises a preliminary work part and a post execution method, wherein the preliminary work comprises the following steps of: performing delicate digital three-dimensional reconstruction work on two groups of nerve anatomic maps (SW, TT) by adopting an advanced nonlinear interpolation method, and unifying the two groups of maps under the same coordinate system by using a three-dimensional nonlinear rectification method; and the execution method comprises the following steps of: performing formatting of input images, realizing real-time rectification of the maps and the patient images by adopting the match of a variable ratio grid method and a sectional local area linear rectification algorithm, and realizing precise rectification and visualization of the anatomic maps by interactive fine tuning. The method is more intuitive, more accurate and easier to operate, realizes complete unification after full three-dimensional reconstruction of two sets of maps TT and SW, provides great convenience for preoperative diagnosis and intraoperative navigation of doctors, and increases an important function for the surgical navigation system.

Description

technical field [0001] The invention relates to a three-dimensional visualization application method, in particular to a three-dimensional visualization application method of anatomical atlas in a neurosurgery navigation system, belonging to the technical field of medical image processing and application. Background technique [0002] Neurosurgery navigation system is a complex system engineering integrating computer technology, biomedical engineering technology and modern medical technology. Among them, the three-dimensional visualization of neuroanatomical atlas is a key technology, which plays a decisive role in the localization of lesions. In traditional neurosurgery, doctors can only complete complex operations by reading anatomical atlases and relying on experience. This will inevitably cause the problems of low success rate and long operation time. At present, there are two main neuroanatomical atlases widely used in clinic: Talairach-Tournoux (TT) neuroanatomical a...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T11/00A61B19/00A61B34/20
Inventor 顾力栩陆春晖张智慧王凝宇徐纪文
Owner JIANGSU APON MEDICAL TECHNOLOGY CO LTD
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