X-ray Absorption (Radiographic Contrast)

X-ray absorption, in the context of radiographic contrast, refers to the differential attenuation of X-ray photons as they pass through various tissues or materials within the body. This difference in absorption is fundamental to producing contrast in radiographic images, allowing visualization of internal structures based on their composition and density. Contrast agents are substances introduced into the body specifically to alter local x-ray absorption characteristics, either increasing (positive contrast) or decreasing (negative contrast) attenuation.

Other names

Radiographic ContrastX-ray AttenuationDifferential X-ray Absorption

Enhancement or reduction of X-ray attenuation in specific tissues or regions of interest.