Table C.7.6.16-2 specifies the attributes of the Pixel Measures Functional Group macro.
Table C.7.6.16-2PIXEL MEASURES MACRO ATTRIBUTES
|Attribute Name||Tag||Type||Attribute Description|
|Pixel Measures Sequence||(0028,9110)||1||Identifies the physical characteristics of the pixels of this frame. Only a single Item shall be included in this sequence.|
|>Pixel Spacing||(0028,0030)||1C||Physical distance in the imaging target (patient, specimen, or phantom) between the centers of each pixel, specified by a numeric pair - adjacent row spacing (delimiter) adjacent column spacing in mm. See 10.7.1.3 for further explanation of the value order. Note: In the case of CT images with an Acquisition Type (0018,9302) of CONSTANT_ANGLE, the pixel spacing is that in a plane normal to the central ray of the diverging X-Ray beam as it passes through the data collection center. Required if Volumetric Properties (0008,9206) is other than DISTORTED or SAMPLED. May be present otherwise.|
|>Slice Thickness||(0018,0050)||1C||Nominal reconstructed slice thickness (for tomographic imaging) or depth of field (for optical non-tomographic imaging), in mm. See C.220.127.116.11.3.1 for further explanation. Note: Depth of field may be an extended depth of field created by focus stacking (see C.8.12.4). Required if Volumetric Properties (0008,9206) is VOLUME or SAMPLED. May be present otherwise.|