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Phantom-and-method-for-evaluating-calcium-scoring

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Phantom and method for evaluating calcium scoring

Details

Inventors: Acharya, Kishore C.; Heinold, Thad A.;
Assignee: GE Medical Systems Global Technology Company, LLC (Waukesha, WI)
Primary Examiner: Kim; Robert H.
Assistant Examiner: Song; Hoon K.
Attorney, Agent or Firm: Horton, Esq.; Carl B. Armstrong Teasdale LLP

A method is described for evaluating substance scoring, the scoring based on imaging system-generated images of an object having regions of interest due to possible presence of the substance, the method including the steps of simulating the regions of interest using a phantom having a plurality of volumes, each volume having dimensions simulating dimensions of a region of interest, each volume having a density representative of a substance density; generating images of the phantom; scoring the substance based on the phantom images; and comparing results of the substance scoring to expected phantom-image results. The above-described phantom and method allow a scoring system user to verify substance scoring accuracy and to compare scores resulting from different imaging systems, scanning methods and reconstruction algorithms.

DETAILED DESCRIPTION There is therefore provided, in one embodiment, a method for evaluating substance scoring, the scoring based on imaging system-generated images of an object having regions of interest due to possible presence of the substance, the method including the steps of simulating the regions of interest using a phantom having a plurality of volumes, each volume having dimensions simulating dimensions of a region of interest, each volume having a density representative of a substance density; generating images of the phantom; scoring the substance based on the phantom images; and comparing results of the substance scoring to expected phantom-image results.
The above-described phantom and method allow a scoring system user to verify substance scoring accuracy and to compare scores resulting from different imaging systems, scanning methods and reconstruction algorithms.

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