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Multimodel type medical image registration method based on standard mask in operation guiding

A medical image and surgical navigation technology, applied in surgical navigation systems, image analysis, image data processing, etc., can solve the problem of not being able to complete the registration of multi-modal preoperative medical images and intraoperative patient coordinate space, and the time-consuming collection of fiducial landmarks. It can improve the treatment effect and quality of life, reduce the cost of rehabilitation medical care, and reduce the effect of surgical complications.

Inactive Publication Date: 2006-06-28
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

"The disadvantages are: this method is based on limited fiducial markers for image space and surgical space registration, and its registration accuracy is limited; the position acquisition of fiducial markers in the operation is pointed by a probe, which is easy to cause the fiducial markers The position is shifted in the surgical space, and it is time-consuming and troublesome to collect the reference marker points one by one with the surgical probe during the operation; this method cannot complete the registration of the multi-mode preoperative medical image and the intraoperative patient coordinate space

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  • Multimodel type medical image registration method based on standard mask in operation guiding
  • Multimodel type medical image registration method based on standard mask in operation guiding
  • Multimodel type medical image registration method based on standard mask in operation guiding

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[0028] Such as figure 1 As shown, taking the preoperative image and intraoperative registration of head surgery navigation as an example, the specific steps of the method of the present invention are described as follows:

[0029] 1. First prepare the reference mask for high-brightness display in CT and MRI medical imaging, and stick the mask on the skin surface of the patient around the lesion. The mask material is a mixture of gadolinium-based and aluminum that can be seen in CT and MRI imaging. According to the imaging resolution of CT and MRI, the thickness of the mask is about 0.9mm. Prepare the reference mask and attach it to the skin surface of the head around the lesion to ensure that the positioning centroid of the reference mask mark set is as close as possible to the target lesion area, so as to ensure the target registration error of the target lesion area surrounded and centered by the reference mask Make it as small as possible and apply the mask to perform multi-mod...

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Abstract

This invention relates to a configuring method for a multi-mode medical image based on a primary standard facial mask in surgery navigation including the following steps: 1, first of all preparing a multi-mode primary standard facial mask, 2, carrying out multi-mode image configuration before the surgery by the image recover method of the primary standard mask , 3, utilizing the collection method for the outer surface in the operation to collect the position information in the space of the outer surface points, 4, finally applying the real time configuration merge method before and in the surgery to get the configuration relation of the multimode image space before the operation and a coordinate space of the patient in the operation.

Description

Technical field [0001] The invention relates to a method in the technical field of computer application, in particular to a multi-mode medical image registration method based on a reference mask in surgical navigation. Background technique [0002] In image-guided computer-assisted surgery, in order to perform surgical navigation based on preoperative medical image scan information, it is necessary to establish the registration relationship between the intraoperative patient and the preoperative medical image. In order to establish this registration relationship, the LandmarX system of Medtronic, a world-renowned surgical navigation system manufacturer, uses a registration system in clinical practice: sticking a fiducial mark point that can be visualized in medical imaging on the surface of the patient’s skin. Locate the three-dimensional position of the fiducial mark in the medical image space and the patient's intraoperative coordinate space, and establish the registration rela...

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Application Information

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IPC IPC(8): G06T7/00A61B34/20G06T11/00
Inventor 秦斌杰庄天戈殷善开
Owner SHANGHAI JIAO TONG UNIV
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