Computer tomography apparatus and method for examining an object of interest
AssigneeKkoninklijke Philips Electronics N.V.
InventorsAndy Ziegler, Thomas Koehler, Michael Grass
Life of this patent
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Abstract
A computer tomography apparatus (100) for examination of an object of interest (107), the computer tomography apparatus (100) comprising detecting elements (123) adapted to detect electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner, and a determination unit (118) adapted to determine structural information concerning the object of interest (107) based on a statistical analysis of detecting signals received from the detecting elements (123).
Claims19
A computer tomography apparatus (100) for examination of an object of interest (107), the computer tomography apparatus (100) comprising:
- detecting elements (123) adapted to detect electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner;
- a determination unit (118) adapted to determine structural information concerning the object of interest (107) based on a statistical analysis of position and energy information of detecting signals received from the detecting elements (123),
- wherein the statistical analysis is performed during a reconstruction process and computes a likelihood estimate that photons were coherently scattered from particular positions and angles of the object of interest (107) based on a computed probability density computed in accordance with said position and energy information of said detecting signals.
A method of examining an object of interest (107) with a computer tomography apparatus (100), the method comprising the steps of:
- detecting electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner;
- and
- determining structural information concerning the object of interest (107) based on a statistical analysis of the detected signals,
- wherein the statistical analysis is performed during a reconstruction process and computes a likelihood estimate that photons were coherently scattered from particular positions and angles of the object of interest (107) based on a computed probability density computed in accordance with said position and energy information of said detecting signals.
A computer-readable medium (402), in which a computer program of examining an object of interest (107) with a computer tomography apparatus (100) is stored which, when being executed by a processor (401), is adapted to carry out the steps of:
- detecting electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner;
- and
- determining structural information concerning the object of interest (107) based on a statistical analysis of the detected signals;
- wherein the statistical analysis is performed during a reconstruction process and computes a likelihood estimate that photons were coherently scattered from particular positions and angles of the object of interest (107) based on a computed probability density computed in accordance with said position and energy information of said detecting signals.
A computer program product comprising one or more computer-readable media having thereon computer executable instructions for examining an object of interest (107) that, when executed by a processor (401), is adapted to carry out the steps of:
- detecting electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner;
- and
- determining structural information concerning the object of interest (107) based on a statistical analysis of the detected signals;
- wherein the statistical analysis is performed during a reconstruction process and computes a likelihood estimate that photons were coherently scattered from particular positions and angles of the object of interest (107) based on a computed probability density computed in accordance with said position and energy information of said detecting signals.
Dependencies are inferred from the claim text.