DICOM PS3.3 2018e - Information Object Definitions

C.8.7.11 X-Ray Grid Module (Current)
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#### 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.8-36. X-Ray Grid Module Attributes

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

Table C.8-36b. X-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

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DICOM PS3.3 2018e - Information Object Definitions