CT image reconstruction

Details CT image reconstruction CT image reconstruction

2005-01-18

2005-01-18

Bruce, David V (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000, C378S901000

Reexamination Certificate

active

06845143

ABSTRACT:
A method for artifact reduction in CT images comprising reconstructing a first data image using an inexact reconstruction algorithm, segmenting the first data image to provide a second image with high attenuation objects separate from low attenuation objects, reprojecting the second image to form a second set of data, reconstructing a third image from the second data set using an inexact reconstruction algorithm; and subtracting at least those portions of the third image outside the high attenuation object from the first image.

REFERENCES:
patent: 6084936 (2000-07-01), Patch
patent: 6173030 (2001-01-01), Patch
patent: 6240157 (2001-05-01), Danielsson

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