Patent ID: 9398889
Filing Date: 2016-07-26
CPC Classification: A61B,G09B

Claim Text:
1. A method of detecting a difference between a measured optical deformation of a radiographic phantom pair and a theoretical deformation of said radiographic phantom pair, said method comprising: (i) comparing a first optical image of a non-deformed radiographic phantom to a second optical image of a deformed radiographic phantom thereby obtaining a measured optical deformation; (ii) performing a deformable registration method between a first computerized tomography (CT) image of said non-deformed radiographic phantom and a second CT image of said deformed radiographic phantom using a deformable registration algorithm thereby obtaining a theoretical deformation; and (iii) comparing said measured optical deformation with said theoretical deformation thereby determining a difference between said measured optical deformation and said theoretical deformation; wherein said non-deformed radiographic phantom and said deformed radiographic phantom each comprise a radiographic phantom material, said radiographic phantom material comprising a soft phantom material and a plurality of optically detectable non-radiopaque markers in spatial communication with said soft phantom material, and wherein said deformed radiographic phantom further comprises a deformation element formed of an inflatable catheter balloon disposed within said soft phantom material.