C.8.7.11 X-Ray Grid Module

This Module describes the attributes related to the use of a grid to reduce scatter of X-Rays during the acquisition of an X-Ray image.

Table C.8-36X-RAY GRID MODULE ATTRIBUTES

Attribute Name Tag Type Attribute Description
Grid (0018,1166) 3 Identifies the grid. May be multi-valued. Defined Terms are: FIXED FOCUSED RECIPROCATING PARALLEL CROSSED NONE
Include ‘X-Ray Grid Description Macro’ Table C.8-36b

Table C.8-36bX-RAY GRID DESCRIPTION MACRO ATTRIBUTES

Attribute Name Tag Type Attribute Description
Grid Absorbing Material (0018,7040) 3 The X-Ray absorbing material used in the grid.
Grid Spacing Material (0018,7041) 3 The spacing material used in the grid.
Grid Thickness (0018,7042) 3 The thickness in mm of the X-Ray absorbing material used in the grid.
Grid Pitch (0018,7044) 3 The pitch in mm of the X-Ray absorbing material used in the grid.
Grid Aspect Ratio (0018,7046) 3 Ratio of the vertical spacing and horizontal spacing of the X-Ray absorbing material used in the grid. Specified by a pair of integer values where the first value is the vertical size, and the second value is the horizontal size.
Grid Period (0018,7048) 3 Period in mSec of reciprocation cycle. Only meaningful if a value of Grid (0018,1166) is RECIPROCATING.
Grid Focal Distance (0018,704C) 3 Focal distance in mm of a FOCUSED grid.
Grid ID (0018,1006) 3 Identifier of the grid