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1. a grating.
2. in radiology, a device consisting essentially of a series of narrow lead strips closely spaced on their edges and separated by spacers of low density material; used to reduce the amount of scattered radiation reaching the x-ray film.
3. a chart with horizontal and perpendicular lines for plotting curves.
Amsler grid see Amsler charts.
baby grid a direct-reading chart on infant growth.
cross-hatched grid two linear grids that are superimposed at right angles to each other, used for maximal scatter cleanup.
grid cutoff differences in radiographic intensity that are caused by improper focusing of the lead lines of a grid.
focused grid a linear grid in which all of the lead strips are aligned in a tilted fashion toward a centering point.
linear grid a grid designed to permit the passage of the primary beam by having lead lines aligned in the same direction separated by radiolucent interspacing material. There are two types, parallel and focused.
Wetzel grid a direct-reading chart for evaluating physical fitness in terms of body build, developmental level, and basal metabolism.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
a chart used to plot changes in height, weight, physical fitness, and related aspects of physical development in children and adolescents. Now more commonly called growth curves, this technique is obsolete.
Farlex Partner Medical Dictionary © Farlex 2012
[Norman C. Wetzel, U.S. pediatrician, b. 1897]
A graph for use in evaluating growth and development in children aged 5 to 18 years.
Medical Dictionary, © 2009 Farlex and Partners
Wetzel,Norman C., U.S. pediatrician, 1897-1984.
Wetzel grid - chart of growth, plotting height, weight, physical fitness and related aspects of young and adolescent children.
Medical Eponyms © Farlex 2012