Patent ID: 8636411
Filing Date: 2014-01-28
Classification: A61B,G01R

Abstract:
1. An apparatus useful for computed tomography imaging, comprising: a phantom control reference, comprising a plurality of compartments, each compartment containing contrast material, the contrast material differing in density from one compartment to another throughout the plurality of compartments, the densities of the contrast material in the plurality of compartments forming a series of densities that corresponds to a density curve of blood perfusion of a healthy tissue; a controller for positioning the compartments in a screening field of view of a CT machine so that the CT machine takes a series of images of the compartments at a same examination time that the CT machine takes a series of CT images of the healthy tissue; and an output structure for providing a first blood perfusion result for the CT images of the phantom control reference used in connection with a first examination of the healthy tissue by a particular CT machine and for providing a second blood perfusion result for the CT images of the phantom control reference used in connection with a second examination of the healthy tissue using a second CT machine.