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Contrast agent dose simulation

A technology related to contrast agents and energy, which is applied in the direction of instruments, applications, and radiological diagnostic technologies, and can solve problems such as limited optimization of scanning protocols and non-compromising diagnostic value

Active Publication Date: 2017-05-10
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, optimization of scanning protocols is often limited, since the diagnostic value of the scans should not be compromised, and in current clinical settings, doses are kept very high to ensure sufficient contrast agent uptake in vasculature or tissues. visibility

Method used

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  • Contrast agent dose simulation
  • Contrast agent dose simulation
  • Contrast agent dose simulation

Examples

Experimental program
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Embodiment Construction

[0018] first reference figure 1 , illustrates an imaging system 100, such as a computed tomography (CT) scanner. Imaging system 100 includes a generally stationary gantry 102 and a rotating gantry 104 rotatably supported by stationary gantry 102 and rotating about an examination region 106 about a z-axis. An object support 107 such as a couch supports an object or object in the examination area 106 . The object support 107 is movable in conjunction with the scanning to guide the object or object with respect to the examination region 106 for its scanning.

[0019] A radiation source 108 , such as an X-ray tube, is rotatably supported by the rotating gantry 104 , rotates with the rotating gantry 104 , and emits radiation through the examination region 106 . In one example, the controller controls the average or peak emission voltage of the radiation source 108 . This includes switching the transmit voltage between and / or otherwise switching between two or more transmit volta...

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Abstract

A method includes obtaining a set of energy dependent data generated from a spectral scan. The set of energy dependent data includes a sub-set of data corresponding to only contrast agent. The method further includes separating the sub-set of data from other data of the energy dependent data. The other data includes non-contrast agent data. The method further includes scaling the sub-set of data to change a concentration of the contrast agent in the sub-set of data from that of the sub-set of data. The method further includes visually presenting at least the scaled sub-set of data.

Description

technical field [0001] The following generally relates to simulating contrast-enhanced images based on projection and / or image data from contrast-enhanced scans, and is described with particular application to computed tomography (CT). However, the following also applies to other imaging applications, such as X-ray, C-arm volume imaging, breast tomosynthesis, and / or other imaging. Background technique [0002] Spectral (or multi-energy) CT utilizes multiple attenuation values ​​acquired simultaneously at many different photon energies to solve for the photoelectric effect, Compton scattering, and other component(s) of the material's mass attenuation coefficient (e.g., K edge) contribution. There are several ways to perform multi-energy CT acquisition, such as using multiple X-ray tubes, kVp switching, multi-slice detectors, and photon counting detectors. [0003] Contrast-enhanced scans require the administration of a contrast agent. The literature indicates that various ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B6/00G06T11/00
CPCA61B6/032A61B6/481A61B6/482A61B6/5205G06T11/005G06T11/008G06T2211/408A61B6/48A61B6/52G06T11/003
Inventor R·D·比普斯T·克勒M·格拉斯
Owner KONINKLJIJKE PHILIPS NV