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Multi-modal image truncation compensation method and device, computer equipment and medium

A multi-modal image and compensation method technology, applied in the field of image processing, can solve the problems of slow convergence, small imaging field of view, inability to quickly and accurately compensate images, etc., and achieve the effect of improving efficiency, fast and accurate compensation

Active Publication Date: 2019-07-02
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the first method uses a single attenuation value for image filling, which cannot fully represent the tissue information of the truncated body part; the second method relies on ToF information, but there is also interference and convergence between the correction map and the metabolic map The third method, although it can increase the radial field of view of the MR image, is still smaller than the imaging field of view of PET
Therefore, none of the above three methods can quickly and accurately compensate images with truncation artifacts

Method used

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  • Multi-modal image truncation compensation method and device, computer equipment and medium
  • Multi-modal image truncation compensation method and device, computer equipment and medium

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Embodiment 1

[0046] Figure 2a It is a flow chart of the multimodal image truncation compensation method provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of compensating the truncated parts of medical images with truncation artifacts. The method can be truncated by multimodal images. The compensation device can be implemented specifically by software and / or hardware in medical imaging equipment, where the medical imaging equipment includes multi-modal imaging equipment such as PET-MR.

[0047] Such as Figure 2a As shown, the multimodal image truncation compensation method specifically includes:

[0048] S110. Acquire a first imaging modality image and a second imaging modality image with a truncation artifact.

[0049] Wherein, the first imaging modality and the second imaging modality refer to different imaging modes, or different imaging parameters in the same imaging mode, therefore, the first imaging modality obtained through the first ima...

Embodiment 2

[0057] Figure 3a It is a flow chart of a multimodal image truncation compensation method provided by Embodiment 2 of the invention. This embodiment provides a training process of the image truncation compensation model based on each optional solution in the foregoing embodiments. Such as Figure 3a As shown, the multimodal image truncation compensation method provided in the embodiment of the present invention includes the following steps:

[0058] S210. Perform radial truncation processing on the first imaging modality image and the second imaging modality image respectively to form a training sample set.

[0059] Wherein, the first imaging modality image and the second imaging modality image are a group of images of the same scanning object. In the process of collecting training samples, at least one group of images of a scanning object can be collected, and multiple images can also be collected respectively. at least one set of images of scanned objects. The radial dir...

Embodiment 3

[0074] Figure 4 It shows a schematic structural diagram of a multi-modal image truncation compensation device provided by Embodiment 3 of the present invention. This embodiment of the present invention is applicable to the case of compensating the truncated part of a medical image with truncation artifacts. The device can be configured In medical imaging equipment, such as PET-MR and other multi-modal imaging equipment.

[0075] Such as Figure 4 As shown, the multimodal image truncation compensation device in the embodiment of the present invention includes: an image acquisition module 310 and an image compensation module 320 .

[0076] Among them, the image acquisition module 310 is used to acquire the first imaging modality image and the second imaging modality image with truncation artifacts; the image compensation module 320 is used to combine the first imaging modality image and the second imaging modality image The imaging modality image is input to the image truncat...

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Abstract

The embodiment of the invention discloses a multi-mode image truncation compensation method and device, computer equipment and a medium. The method comprises the steps of obtaining a first imaging mode image and a second imaging mode image with truncation artifacts; and inputting the first imaging mode image and the second imaging mode image into the image truncation compensation model to performtruncation compensation on the second imaging mode image. According to the embodiment of the invention, the obtained medical images of multiple modalities are input into the pre-trained image truncation compensation model at the same time, so that the compensated result image of the image with the truncation artifact is obtained, and the problem that the image with the truncation artifact cannot be quickly and accurately compensated in the prior art is solved; according to the structural similarity between multi-mode images, the image with the truncation artifact can be quickly and accuratelycompensated, and the image compensation efficiency is improved.

Description

technical field [0001] Embodiments of the present invention relate to image processing technologies, and in particular to a method, device, computer equipment and media for multimodal image truncation compensation. Background technique [0002] In a medical device with a combination of multiple imaging devices, multimodal medical images can be obtained simultaneously after one imaging scan, for example, PET-MR, which is a combination of positron emission tomography PET and nuclear magnetic resonance equipment MR It is a large-scale functional metabolic and molecular imaging diagnostic equipment, which also has the inspection functions of PET and MR. In one examination of PET-MR, a PET image and an MR image can be obtained, wherein the attenuation correction information of the PET image is obtained through the MRI image. However, due to the influence of the uniformity of the magnetic field, the radial field of view of MRI is smaller than that of PET, and it often occurs that...

Claims

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Application Information

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IPC IPC(8): G06T11/00
CPCG06T11/008G06T2211/40G06T11/00G16H30/20G16H30/40G16H50/70A61B6/5229A61B6/037G06N3/088G06N3/047G06N3/045Y02D10/00G06T7/10G06N20/00G06T7/0012G06T2207/10076G06T2207/10081G06T2207/10088G06T2207/10104
Inventor 刘慧曹拓宇史宇航
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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