Tungsten alloy CT scan, also called tungsten alloy X-ray computed tomography (X-ray CT) or tungsten alloy computerized axial tomography scan (CAT scan), takes advantage of computer-processed integrations of many X-ray images taken from different angles to produce tomographic images (virtual 'slices') of specific areas of a scanned object, enabling the user to see inside the object without cutting.

Tungsten alloy X-ray CT completely excludes the superimposition of images of structures outside the area of interest. And because of its intrinsic high-contrast resolution, it can distinguish the differences between tissues that differ in physical density by less than 1%. Data from a single CT imaging procedure making up of either multiple contiguous or one helical scan also can be viewed as images in the axial, coronal, or sagittal planes, it varies from different diagnostic tasks.

Though CT has many advantages in the field of medicine, but it also has some side effects .The radiation used in CT scans can damage body cells, including DNA molecules, which can lead to cancer. According to the National Council on Radiation Protection and Measurements, between the 1980s and 2006, the use of CT scans has increased six fold (600%). A study by a New York hospital found that nearly a third of its patients who underwent multiple scans received the equivalent of 5,000 chest X-rays.To avoid the side effect, tungsten alloy shielding parts is widely used inthe CT scan as tungsten alloy can shield X-rays and stop X rays from harming human body.