visual representation as by photography or painting

the branches of medical science that deal with nonsurgical techniques

obtaining images by the use of X rays

using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)

the use of nuclear magnetic resonance of protons to produce proton density images

(radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation

the branches of medical science that deal with nonsurgical techniques