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Image processing device and method for blood flow imaging

An image processing device and blood flow technology, applied in image data processing, image generation, 2D image generation, etc., can solve problems such as inapplicable aneurysm flow reconstruction

Active Publication Date: 2012-12-05
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, this and other current flow reconstruction methods are based on vascular architecture and are thus limited to tubular structures with well-defined connected structures of distinct voxel bundles along the vascular tree.
Therefore, at the present stage, it is not suitable for (for example) reconstruction of aneurysmal flow

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  • Image processing device and method for blood flow imaging
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  • Image processing device and method for blood flow imaging

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Embodiment Construction

[0037] figure 1 An X-ray apparatus 100 according to the present invention is shown, which is used to form a two-dimensional X-ray image or X-ray projection image of an object 40 to be examined (for example, a patient placed on a patient examination table 60). The X-ray device includes a first imaging unit 1. The first imaging unit 1 has a first X-ray source 10 and a first X-ray detector 11. The first X-ray source 10 and the first X-ray detector 11 are installed so that they The C-shaped arms 12 face each other upwards, and the C-shaped arms 12 themselves are mounted on a bracket 13 which is only partially shown. On the one hand, the C-shaped arm 12 can be rotated around a horizontal axis, and on the other hand, it can be driven to rotate by a motor, for example, rotated 180° in the direction of the double arrow 20 around its center. This movement makes it possible to move from the different reproducible projection directions r of the first imaging unit 1 1 , R 2 , R 3 A number ...

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Abstract

An image processing device is proposed and includes a reconstruction unit (51) for reconstruction of a 3D volume image of said object from said first series of X-ray projection images (D), a segmentation unit (52) for segmentation of the vessel tree from said 3D volume image, a forward projection unit (54) for forward projection of the segmented vessel tree onto said first and projection plane (R1, R2), respectively, and a mapping unit (55) for mapping of the image values of pixels of the vessel tree in said second and third, respectively, series of X-ray projection images onto corresponding voxels of said 3D volume image to obtain said time series of 3D volume images showing the blood flow in the vascular tree of the object.

Description

Technical field [0001] The present invention relates to an image processing device and a corresponding image processing method, which are used for the first series of X-ray projection images (D) of the object acquired from different projection directions and the first series of X-ray projection images (D) and respectively from the Or the second and third series of X-ray projection images of the object alternately acquired in the second fixed projection direction on the first or second fixed projection plane to generate a time series of 3D volumetric images showing blood flow in the vascular tree of the object. In addition, the present invention relates to a computer program for implementing the method on a computer. The present invention particularly relates to an X-ray apparatus for imaging blood flow in a vascular tree of a subject. Background technique [0002] In WO 02 / 056260 Al a method of imaging blood flow in the vascular tree is disclosed, which obtains additional inform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00
CPCG06T2211/404G06T11/008G06T2211/412
Inventor M·格拉斯H·施米特
Owner KONINK PHILIPS ELECTRONICS NV