Multi-material decomposition using dual energy computed tomography
AssigneeGeneral Electric Company
InventorsPaulo Ricardo dos Santos Mendonça, Paul Edgar Licato, Rahul Bhotika, Brian William Thomsen
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Abstract
A method for obtaining multi-material decomposition images is disclosed, the method comprising the steps of: acquiring an image pair from a dual energy computed tomography scan of an imaged object; selecting a material basis for multi-material decomposition of the image pair; applying a physicochemical model for the material basis; and performing multi-material decomposition using at least one constraint imposed by the physicochemical model.
Claims9
A method for obtaining multi-material decomposition images, said method comprising the steps of:
- acquiring an image pair from a dual energy computed tomography scan of an imaged object;
- selecting a material basis for multi-material decomposition of said image pair;
- applying a physicochemical model for said material basis;
- and
- performing multi-material decomposition using at least one constraint imposed by said physicochemical model.
A method for obtaining multi-material decomposition images of an object, said method comprising the step of:
- conducting a first computed tomography scan of the object at a first energy spectrum;
- conducting a second computed tomography scan of the object at a second energy spectrum;
- and
- decomposing the scanned object into two basis materials to derive a linear attenuation curve based on said two basis materials.
A computer program product for performing multi-material decomposition on computed tomography images, said computer program product comprising:
- a computer-readable medium for storing computer code for execution by a computer;
- a first program code for selecting a material basis for multi-material decomposition of an image pair acquired from a computed tomography scan;
- a second code for applying a physicochemical model for said material basis;
- and
- a third code for performing multi-material decomposition using constraints imposed by said physicochemical model;
- wherein said first through third program codes are stored on said computer-readable medium.
Dependencies are inferred from the claim text.