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A vertebra recognition device and method

A technology for identifying devices and vertebrae, applied in the field of medical spine imaging, can solve problems such as wrong predictions and increased surgical risks

Active Publication Date: 2018-10-26
THE SECOND AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In the process of generating the curved rod, the doctor can only use the two-dimensional CT image to calculate some spinal parameters to predict the shape of the spine after correction. There may be prediction errors, which may cause the pre-made curved rod to be modified during the operation. , increased surgical risk

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  • A vertebra recognition device and method
  • A vertebra recognition device and method
  • A vertebra recognition device and method

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Experimental program
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Embodiment approach

[0055] figure 1 The illustrated vertebra recognition method requires the user to manually cut the vertebra, which is time-consuming and laborious. exist figure 1 On the basis of , improvements were made. figure 2 A preferred implementation of the spine recognition method of the present invention is shown, which includes the following steps: S201: Import a spine model. The spine model is a single vertebral model and / or the entire spine model obtained based on three-dimensional reconstruction of CT tomographic images; the spine model also includes a single vertebral model from which impurities have been preliminarily removed.

[0056] The imported spine model includes not only a spine model obtained by performing three-dimensional reconstruction on CT tomography, but also a passed single vertebral bone model. The re-import of the single vertebra model, through the re-identification of the vertebra end face, helps to eliminate the influence of the shadow generated by impuriti...

Embodiment 1

[0068] by figure 2 with image 3 As an example, the vertebra recognition method of the present invention will be described. The vertebra recognition process includes:

[0069] S201: Import the spine model. The spine model imported in this embodiment is a spine model obtained based on three-dimensional reconstruction of a CT tomogram. In a specific implementation process, the spinal column model may also include a single vertebral model in which impurities have been preliminarily removed.

[0070] S202: Perform end face recognition on each vertebra on the spine. Described end face recognition is to utilize triangular face selector, at first select a triangular face on a curved surface, utilize this triangular face as seed point to grow, combine the normal vector of each triangular face, grow according to the normal vector of seed triangular face and For the included angles of the normal vectors of other triangular faces, select adjacent triangular faces whose included ang...

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Abstract

The invention discloses a vertebra identification apparatus and a method thereof. The vertebra identification apparatus comprises an image acquisition unit, an end surface identification unit, an end surface analysis unit, a bounding box generation unit and an image processing unit. The end surface identification unit carries out vertebra end surface identification on a vertebral image collected by the image acquisition unit and sends a fitting curved surface generated during an identification process to the end surface analysis unit. The end surface analysis unit uses the identified fitting curved surface to acquire a central point of the curved surface and a normal vector, takes the central point of the curved surface as an original point so as to establish a three-dimensional space coordinate system and calculates value domains of the curved surface in three directions of a three-dimensional coordinate axis. The bounding box generation unit determines a position and a size of a bounding box according to the identified the central point of the fitting curved surface and the value domains of each point of the curved surface in the three directions of the three-dimensional coordinate axis and generates the bounding box so as to complete vertebra interception.

Description

technical field [0001] The invention relates to the technical field of medical spine imaging, in particular to a vertebra recognition device and method. Background technique [0002] With the development of modern medical imaging technology, there have been computed tomography (CT), magnetic resonance imaging (MRI), positron emission computed tomography (PEI), ultrasound (Ultrasound) and so on. However, these medical imaging devices can only provide two-dimensional images of internal tissues or organ sections of the human body, and cannot provide continuous three-dimensional images. In the current medical diagnosis, lesions are mainly found by observing a group of CT and MRI two-dimensional slice images. The shape and size of the lesions can only be estimated by the doctor's experience in film reading, which lacks intuition and makes accurate judgments difficult. . [0003] With the continuous development of surgery, precision surgery has put forward higher requirements fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/593
CPCG06T7/0012G06T2207/10081G06T2207/30012
Inventor 荆珏华霍星钱军王浩田大胜程里檀结庆邵堃
Owner THE SECOND AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV