Hello Aspirant,

Hope you are doing great.  Phantoms were first used in 2D X-ray imaging techniques like radiography and fluoroscopy, but more recently, phantoms with desirable imaging features have been produced for 3D techniques like MRI, CT, Ultrasound, PET, and other imaging methods or modalities.

In the realm of medical imaging, an imaging phantom, or simply phantom, is a specially built item that is scanned or imaged to test, analyze, and modify the performance of various imaging instruments and there are even digital phantoms, anthropomorphic and calibration.

ALL THE BEST