The X-Ray Computed Tomography Scanner (abbreviation: CT Scanner) is an imaging device that uses X-ray and a set of highly sensitive detectors to collect plane image data from different angles around the human body, which can be reconstructed by computer into various sectional images or 3D images.

At present, CT has become an important tool in medical imaging and can be used on almost all parts of the human body, including the head, chest, heart, abdomen, pelvis and limbs; Compared with ordinary X-ray imaging, it can provide a complete three-dimensional image of the organ. Tiny differences were found, benefiting from the high resolution of computed tomography. CT brings great convenience to doctor in diagnosis and research.