Akademik

Wideness; the distance from one side of an object or area to the other.

- orbital w. the distance between the dacryon and the farthest point on the anterior edge of the outer border of the orbit (Broca), or between the latter point and the junction of the frontolacrimal suture and the posterior edge of the lacrimal groove.

- window w. the range of CT numbers (in Hounsfield units) included in the gray scale video display of the CT image, ranging from 1 to 2000 or 3000, depending on the type of machine. Also, the range of electromagnetic energies passed by an electronic screening module of an imaging device, as by a scintillation camera. SEE ALSO: window level.