Method and apparatus of spectral differential phase-contrast cone-beam CT and hybrid cone-beam CT
R Ning, W Cai - US Patent 9,364,191, 2016 - Google Patents
DPC (differential phase contrast) images are acquired for each photon energy channel,
which are called spectral DPC images. The final DPC image can be computed by summing
up these spectral DPC images or just computed using certain 'color'representation
algorithms to enhance desired features. In addition, with quasi-monochromatic x-ray source,
the required radiation dose is substantially reduced, while the image quality of DPC images
remains acceptable.
which are called spectral DPC images. The final DPC image can be computed by summing
up these spectral DPC images or just computed using certain 'color'representation
algorithms to enhance desired features. In addition, with quasi-monochromatic x-ray source,
the required radiation dose is substantially reduced, while the image quality of DPC images
remains acceptable.
Method and apparatus of spectral differential phase-contrast cone-beam CT and hybrid cone-beam CT
R Ning, W Cai - US Patent 10,478,142, 2019 - Google Patents
DPC (differential phase contrast) images are acquired for each photon energy channel,
which are called spectral DPC images. The final DPC image can be computed by summing
up these spectral DPC images or just computed using certain 'color'representation
algorithms to enhance desired features. In addition, with quasi-monochromatic x-ray source,
the required radiation dose is substantially reduced, while the image quality of DPC images
remains acceptable.
which are called spectral DPC images. The final DPC image can be computed by summing
up these spectral DPC images or just computed using certain 'color'representation
algorithms to enhance desired features. In addition, with quasi-monochromatic x-ray source,
the required radiation dose is substantially reduced, while the image quality of DPC images
remains acceptable.
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