Fast generation method of blood vessel teaching aid based on automatic advancing of bounding box

A bounding box and blood vessel technology, applied in the field of medical teaching aids, can solve the problem that the centerline extraction method relies on user interaction and so on

Active Publication Date: 2022-08-09
青岛埃米博创医疗科技有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a rapid generation method of vascular teaching aids based on bounding box au

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  • Fast generation method of blood vessel teaching aid based on automatic advancing of bounding box
  • Fast generation method of blood vessel teaching aid based on automatic advancing of bounding box
  • Fast generation method of blood vessel teaching aid based on automatic advancing of bounding box

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Embodiment example

[0086] Using the original DICOM data as the input data of the present invention, the final reconstructed vascular teaching aid results are as follows: Image 6 shown.

[0087] The advantage of the present invention lies in using a self-defined directional bounding box, and based on the automatic traveling algorithm of the bounding box, the previous non-automatic blood vessel reconstruction can be fully automatic. The present invention is directly based on medical images, does not require image segmentation or manual interaction, and is fully automatic in reconstruction and production. Through the initial data automatically run out of the bounding box, re-sampling after fitting is performed to obtain accurate blood vessel key point information, and finally point cloud data is generated from this, so as to quickly realize automatic blood vessel reconstruction for a given precise point and threshold. . Compared with the traditional artificial reconstruction of blood vessels, th...

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Abstract

The invention relates to the technical field of medical teaching aids, in particular to a rapid generation method of a blood vessel teaching aid based on automatic advancing of a bounding box, which comprises the following steps of: manually operating to give an initial point and an initial direction vector on original three-dimensional data, and establishing the bounding box by using the initial point and the initial direction vector; performing offset rotation calculation through the initial point and the initial direction vector to obtain the range of the bounding box; based on the range, six surfaces of the bounding box are cut out through a slicing algorithm; solving a blood vessel outlet based on the six surfaces and the blood vessel inlet, and making direction vectors by using the blood vessel inlet and the blood vessel outlet to obtain a known direction vector; re-establishing a bounding box by using a blood vessel outlet and a known direction vector until a point data group is obtained; fitting the point data set through a spline to obtain a blood vessel center line; the blood vessel teaching aid is obtained by performing blood vessel reconstruction and generation based on the blood vessel center line, and the problem that an existing center line extraction method for a blood vessel tree depends on user interaction is solved.

Description

technical field [0001] The invention relates to the technical field of medical teaching aids, in particular to a method for rapidly generating blood vessel teaching aids based on bounding boxes that travel automatically. Background technique [0002] Blood vessels have a complex three-dimensional structure with numerous and complex branches. Individual differences in the vascular system are large, each person's vascular structure is unique, and vascular lesions cause more serious morphological specificity. It is very difficult to make a true and accurate vascular teaching aid. [0003] At present, the prior art discloses a centerline extraction method for a blood vessel tree. In this solution, the user interactively selects and calculates the centerline of each branch and finally merges to obtain a complete centerline, reconstructs the blood vessel through the centerline, and finally produces the blood vessel. Teaching aids. [0004] With the above method, a large number ...

Claims

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Application Information

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IPC IPC(8): G06T17/00G06T19/00
CPCG06T17/00G06T19/00G06T2207/30101G06T2207/10028G06T2207/10081
Inventor 齐全尹小芳王明轩左昌鑫鲁帆林庆童
Owner 青岛埃米博创医疗科技有限公司
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