C. CT Pixel Value Transformation Macro

Table C.8-126 specifies the attributes of the CT Pixel Value Transformation Functional Group macro.

Notes: 1. This Macro is equivalent to the Modality LUT transformation in non Multi-frame IODs.

2. This in effect specializes the C. Pixel Value Transformation Macro.


Attribute Name Tag Type Attribute Description
Pixel Value Transformation Sequence (0028,9145) 1 Contains the attributes involved in the transformation of stored pixel values. Only a single Item shall be included in this sequence.
>Rescale Intercept (0028,1052) 1 The value b in relationship between stored values (SV) and the output units. Output units = m*SV + b.
>Rescale Slope (0028,1053) 1 m in the equation specified by Rescale Intercept (0028,1052).
>Rescale Type (0028,1054) 1 Specifies the output units of Rescale Slope (0028,1053) and Rescale Intercept (0028,1052). See C. for further explanation. If Frame Type (0008,9007) Value 1 of this frame is ORIGINAL and Frame Type (0008,9007) Value 3 is not LOCALIZER, the value shall be HU (Hounsfield Units).