DICOM PS3.3 2024a - Information Object Definitions

A.33.8 Variable Modality LUT Softcopy Presentation State IOD

A.33.8.1 Variable Modality LUT Softcopy Presentation State IOD Description

The Variable Modality LUT Softcopy Presentation State IOD specifies information that may be used to apply transformations to monochrome or pseudo-color images for which one or more Modality LUT transformations are intended for presentation control. This IOD supports presentation control for a set of images for which the Modality LUT varies on a frame-by-frame basis.

It includes capabilities from the Grayscale Softcopy and Pseudo-color Presentation State IODs for specifying:

  1. the output grayscale space in P-Values

  2. the output color space in PCS-Values

  3. grayscale contrast transformations including Modality LUT and VOI LUT

  4. a color palette to map the transformed grayscale values into pseudo-color

  5. mask subtraction for multi-frame images

  6. selection of the area of the image to display and whether to rotate or flip it

  7. image and display relative annotations, including graphics, text and overlays

Note

This IOD may only reference monochrome images or pseudo-color images, i.e. images with a Photometric Interpretation (0028,0004) of MONOCHROME1, MONOCHROME2 or PALETTE_COLOR. For other Photometric Interpretations, presentation behavior is not defined. See Section A.33.2 for the Color Softcopy Presentation State IOD, which allows for referencing color images, e.g. images with a Photometric Interpretation (0028,0004) of RGB.

DICOM PS3.3 2024a - Information Object Definitions