Methods and apparatus for optimizing CT image quality with optimized data acquisition
AssigneeGeneral Electric Company
InventorsHui David He, Thomas L. Toth
Life of this patent
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Abstract
A method is described for optimizing signal-to-noise performance of an imaging system, including the steps of scout-scanning an object to obtain scout scan data; determining a plurality of normalized x-ray input signal factors using the scout scan data; using the normalized x-ray input signal factors to determine at least one system input signal; selecting at least one gain for the object scan using the system input signal; and applying the selected gain corresponding to the system input signal in the object scan.
Claims30
A method for reducing electronic noise during object scanning by a computed tomography imaging system, said method comprising the steps of:
- scout scanning the object to obtain scout scan data;
- determining at least one normalized x-ray input signal factor using the scout scan data;
- using the at least one normalized x-ray input signal factor to determine at least one system input signal;
- selecting at least one gain for the object scan using the at least one system input signal;
- and
- applying the at least one selected gain corresponding to the at least one system input signal in the object scan.
An apparatus for reducing electronic noise during an object scan by a computed tomography imaging system, said apparatus configured to:
- scout scan the object to obtain scout scan data;
- determine at least one normalized x-ray input signal factor using the scout scan data;
- use the at least one normalized x-ray input signal factor to determine at least one system input signal;
- select at least one gain for the object scan using the at least one system input signal;
- and
- apply the at least one selected gain corresponding to the at least one system input signal in the object scan.
Dependencies are inferred from the claim text.