System and method for dual energy dynamic X-ray imaging

A dual-energy imaging and dynamic imaging technology, applied in related fields, can solve problems such as poor image quality, miss, slow readout of dose control images, etc.

Inactive Publication Date: 2008-08-06
KONINKLIJKE PHILIPS ELECTRONICS NV
View PDF0 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, involuntary patient movements such as heart contraction cannot be avoided
Significant motion of the heart between the two x-ray images may produce poor image quality due to defective tissue removal in the subtraction image
The poor image quality can lead

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for dual energy dynamic X-ray imaging
  • System and method for dual energy dynamic X-ray imaging
  • System and method for dual energy dynamic X-ray imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] As set forth herein, the present disclosure advantageously facilitates dual energy dynamic imaging and improves tissue contrast without the use or use of less contrast agent. The present disclosure may be advantageously employed in cardiac applications including, for example, imaging of vulnerable plaque in cardiac arteries. By using dual-energy quantum images acquired at very small time intervals at different kV values ​​of the x-ray source, contrast can be improved with no or less contrast agent. A dual-energy image is obtained in each frame of the dynamic sequence when subtraction or division is performed on the sub-images obtained at different kV values.

[0015] FIG. 1 is a block diagram showing structural components of an apparatus 100 for dual energy dynamic imaging according to an embodiment. The cross-section of Figure 1 defines an X-Z plane, where Z is the vertical dimension and X is the horizontal dimension. The horizontal dimension extends beyond the page,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A system and method for dual energy imaging in dynamic imaging sequences is disclosed. The system and method includes a x-ray source ( 204 ) configured for fast adaptation at different kV values of the x-ray source ( 204 ); a flat x-ray detector ( 202 ) having parallel signal integration and read-out; and a x-ray controller ( 206 ) in operable communication with the x-ray detector ( 202 ) and x-ray source ( 204 ). The detector ( 202 ) integrates a first signal corresponding to a first sub-image ( 300 ) at a first kV value ( 302 ), transfers the integrated first signal to a sample and hold node for each pixel and integrates a second signal corresponding to a second sub-image ( 304 ) at a second kV value ( 306 ). The detector ( 202 ) provides signal integration of the second sub-image ( 134 ) in parallel with read-out of the first sub-image from the sample and hold nodes. ( 300 ). The x-ray controller ( 206 ) controls generation of x-ray pulses in the x-ray source ( 204 ) and acquisition of images with the x-ray source ( 204 ) generating the x-ray pulses at different kV values on a millisecond timescale.

Description

technical field [0001] The present disclosure relates generally to dual energy imaging, and in particular to a method and system for dynamic dual energy imaging, and more particularly to said dynamic dual energy imaging using dual (ie, two different) x-ray energies. Energy imaging system and method by rapidly switching an x-ray energy source between low and high energy levels and wherein the resulting corresponding dual-energy x-ray images. The dual energy images are processed using a pre-calibrated database and adjustable parameters to produce corresponding individual images that provide enhanced visibility to anatomical structures of interest, facilitating x-ray imaging, for example, during cardiac / vascular applications . Background technique [0002] The practice of using x-ray systems in clinical imaging and diagnosis is well established. Several types of x-ray imaging methods are available to image different anatomical regions or to provide different diagnostic tools...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B6/00G01N23/087
CPCA61B6/481A61B6/542A61B6/482A61B6/4233A61B6/4291A61B6/4441A61B6/4035A61B6/5264A61B6/504G01N23/087A61B6/00
Inventor T·普尔特
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap