Deformable image registration phantom comprising a housing, an inner cylinder, an outer cylinder, a ball and socket mount, and a target

Abstract

A deformable image registration phantom, having a housing, an outer cylinder with a first diameter, a parallel eccentric inner cylinder with a second diameter smaller than the first diameter, a ball and socket mount, and a target. The target is mounted to the housing by way of the inner and outer cylinders and the ball and socket mount. The inner cylinder is rotatably mounted within the outer cylinder and the target is rotatably mounted, directly or indirectly, within the inner cylinder. The outer cylinder may be rotatably mounted within the housing and the ball and socket mount rotatably mounted within the inner cylinder. Alternatively, the outer cylinder may be rotatably mounted within the ball and socket mount and the ball and socket mount rotatably mounted within the housing.

Dependencies are inferred from the claim text.