NCIt definition : Imaging Phantoms are used for the assessment of image quality. Within these functional
categories phantoms can be further defined. (1) Body Phantoms: have the shape and
composition of the human body or part of it. They are also referred to as anthropomorphic
phantoms. (2) Phantoms that are used for standardization and inter-comparison of various
radiation conditions are often referred to as Standards. (3) Reference Phantoms include
phantoms used to derive radiation dose calculations, mineral density equivalences
or other similar type measurements. They can further be defined by their intended
modality such as Ultrasound, Mammography, Computed Tomography (CT), etc.;