DICOM PS3.3 2021b - Information Object Definitions

C.35 Manufacturing 3D Model Modules (Current)
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## C.35 Manufacturing 3D Model Modules

### C.35.1 Manufacturing 3D Model Module

Table C.35.1-1 defines Attributes specific to models used in medical 3D manufacturing.

Table C.35.1-1. Manufacturing 3D Model Module Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Measurement Units Code Sequence | (0040,08EA) | 1 | Units of distance for the coordinate system for the encapsulated 3D Manufacturing Model file. Only a single Item shall be included in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” | DCID 7063 “Model Scale Units”.
Model Modification | (0068,7001) | 3 | Specifies whether a modification of the observed anatomy (other than mirroring) was used to create the model (e.g. simulating an expected surgical result). In the negative, the model follows the observed patient anatomy in the source data. Enumerated Values: YES NO
Model Mirroring | (0068,7002) | 3 | Specifies whether mirroring of anatomy from the other side of the patient was used to create the model. Enumerated Values: YES NO
Model Usage Code Sequence | (0068,7003) | 3 | Specifies the use for which the manufactured object is intended. Only a single Item is permitted in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” | BCID 7064 “Model Usage”.
Content Description | (0070,0081) | 3 | A description of the model.
Icon Image Sequence | (0088,0200) | 3 | A preview image representing the rendered model. Only a single Item is permitted in this Sequence.
>Include Table C.7-11b “Image Pixel Macro Attributes” | See Section C.7.6.1.1.6 for further explanation.
Derivation Algorithm Sequence | (0022,1612) | 3 | Software algorithm that created the 3D model. Only a single Item shall be included in this Sequence.
>Include Table 10-19 “Algorithm Identification Macro Attributes” |
Model Group UID | (0068,7004) | 3 | Uniquely identifies a group to which the model belongs. Manufacturing models that share the same Model Group UID are considered distinct parts within the same assembly.
Recommended Display CIELab Value | (0062,000D) | 3 | Specifies the color recommended to be used for the model. This color applies both when digitally displaying the model and when selecting material for manufacturing. This would typically be used to visually distinguish between models that are part of the same assembly and/or provide best analog to real world appearance. The units are specified in PCS-Values, and the value is encoded as CIELab. This value may be superseded by individual colors that have been specified inside the encapsulated model (when the encapsulated format allows this). See Section C.10.7.1.1.
Recommended Presentation Opacity | (0066,000C) | 3 | Specifies the opacity recommended to be used for the model. This opacity applies both when digitally displaying the model and when selecting material for manufacturing. A non-opaque value would typically be specified when either (a) another model grouped in the same assembly needs to be visible behind or inside this model, or (b) the model represents anatomy that is not fully opaque. If not present, then it is assumed the model should be presented and manufactured as opaque. See Section C.27.1.1.3.

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DICOM PS3.3 2021b - Information Object Definitions