Full field of view scatter estimation for DAX imaging

An X-ray and scatterometry technology, applied in the field of X-ray imaging systems, can solve problems such as the destruction of dark field images or phase contrast images, and achieve the effect of preventing scattering artifacts and accurate scattering correction

Active Publication Date: 2021-09-28
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Darkfield imaging has been overused and sometimes darkfield or phase contrast images are corrupted by artifacts

Method used

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  • Full field of view scatter estimation for DAX imaging
  • Full field of view scatter estimation for DAX imaging

Examples

Experimental program
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Embodiment Construction

[0028] refer to figure 1 , shows a schematic block diagram of an image processing arrangement IA comprising a computerized image processing system IPS and an X-ray imaging device XI ("imager"). The x-ray imaging device is configured for dark field x-ray ("DAX") imaging and / or phase contrast ("Φ") imaging. The imaging device XI comprises an X-ray source XR and an X-radiation sensitive detector D. Imager XI may be configured for 2D radiographic imaging or 3D imaging such as a CT scanner.

[0029] The image processing system IPS may run as one or more software modules or routines on one or more data processing units PU (eg one or more computers, servers, etc.). The IPS may be arranged externally and remotely from the imager XI, or the IPS may be integrated into the imager XI, for example into a workstation associated with the imager XI or into an operator operator console. The image processing system IPS may be implemented in a distributed architecture to serve a group of imag...

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Abstract

An X-ray imaging system (XI) configured for phase contrast imaging and / or dark field imaging. The system comprises: an X-ray source (XS) operable to emit X-radiation from a focal spot (SF) of the source (XS); and an X-ray sensitive detector (D) operable to detect the X-radiation after the X-radiation interacts with an object if there is an object to be imaged between the X-ray source and the detector (D). A control logic unit (CL) is operable to operate the X-ray imaging device in any one of two modes, the two modes being an object image acquisition mode and a scatterometry mode. The X-radiation receivable at the detector when in a scatter measurement mode includes a higher proportion of scattered radiation than the X-radiation receivable when the system is in an object image acquisition mode.

Description

technical field [0001] The invention relates to an X-ray imaging system configured for phase contrast imaging and / or dark field imaging, a method of operating an X-ray imaging device, a computer program element and a computer readable medium. Background technique [0002] Dark-field ("DAX") imaging has attracted interest, especially in the medical field. Darkfield imaging is a type of X-ray imaging. Contrast in dark field imaging relates to the amount of small angle scattering experienced by X-radiation. [0003] A. Yaroshenko et al. have reported the use of mice in "Pulmonary Emphysema Diagnosis with a Preclinical Small-Animal X-ray Dark-Field Scatter-Contrast Scanner" (Radiology, Vol. 269, No. 2, November 2013). experimental dark-field imaging. Phase contrast has also been found to add additional useful insights, especially when imaging soft tissues. [0004] Darkfield imaging has been overused and sometimes darkfield or phase contrast images are corrupted by artifacts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/4208A61B6/5258A61B6/54A61B6/483A61B6/5229A61B6/484A61B6/4417A61B6/4291G01N23/041A61B6/5282A61B6/4021G01N23/20083G01N2223/051G01N2223/063G01N2223/419A61B6/542
Inventor S·P·普雷弗尔哈尔T·克勒K·J·恩格尔
Owner KONINKLJIJKE PHILIPS NV
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