Method and apparatus for aligning a multi-modality imaging system
AssigneeGeneral Electric Company
InventorsJohn Jay Williams, Gang Cheng, Xiaoquan Zhao
Life of this patent
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Abstract
A method of determining component misalignment in a multi-modality imaging system includes imaging a plurality of target objects with a first modality unit to generate a tomographic image data set and imaging the plurality of targets with a second modality unit to generate an emission image data set. The method also includes determining a location of the target objects in the emission image data set to produce emission target object location coordinates, calculating a positional alignment vector for each target object based on the emission target object location coordinates, and aligning the multi-modality imaging system based on the positional alignment vectors.
Claims26
A method of determining component misalignment in a multi-modality imaging system including a first modality unit and a second modality unit, said method comprising:
- imaging a plurality of target objects with the second modality unit to generate an emission image data set;
- determining a location of the target objects in the emission image data set to produce emission target object location coordinates;
- calculating a positional alignment vector for each target object based on the emission target object location coordinates;
- and
- aligning the multi-modality imaging system based on the positional alignment vectors.
A multi-modality imaging system comprising a first modality unit, a second modality unit, and a computer operationally coupled to the first and second modality units, wherein the computer is programmed to:
- image a plurality of target objects with the second modality unit to generate an emission image data set;
- determine a location of the target objects in the emission image data set to produce emission target object location coordinates;
- and
- calculate a positional alignment vector for each target object based on the emission target object location coordinates, the positional alignment vectors used to align the multi-modality imaging system.
A computer readable medium encoded with a program programmed to instruct a computer to:
- image a plurality of target objects with the second modality unit to generate an emission image data set;
- determine a location of the target objects in the emission image data set to produce emission target object location coordinates;
- and
- calculate a positional alignment vector for each target object based on the emission target object location coordinates, the positional alignment vectors used to align the multi-modality imaging system.
Dependencies are inferred from the claim text.