G's Flashcards
gastrography
A radiographic contrast study of the stomach. Gastrogram.
gram
Years ago, radiographs were also called radiograms. Currently, gram is used to describe contrast studies (e.g., esophagram, cystogram); for example, cystography is performed to produce a cystogram.
granuloma
A mass or nodule of chronically inflamed tissue with granulations (small, rounded masses of tissue that form during healing), usually associated with an infectious process.
graph
In imaging terminology, this term refers to an image. Practically the term has come to mean a survey or noncontrast image: a radiograph.
gravel sign
Refers to the accumulation of tiny, sandlike mineral opacities immediately proximal to the site of a gastric or intestinal obstruction
grid
An x-ray filtering device consisting of interspaced metal strips (usually lead) designed to block (absorb) secondary or scatter radiation. Grid is positioned between the subject (patient) and image detector (e.g., film, phosphor plate).