E.3.4 Other Parameters
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### E.3.4 Other Parameters

This section defines other parameters in the STD-CTMR profiles that need to be specified in order to ensure interoperable information interchange.

Table E.3-2. STD-CTMR Additional DICOMDIR Keys

Key Attribute | Tag | Directory Record Type | Type | Notes
--- | --- | --- | --- | ---
Referenced Image Sequence | (0008,1140) | IMAGE | 1C | Required if present in image object.
>Referenced SOP Class UID | (0008,1150) | IMAGE | 1C | Required if Referenced Image Sequence (0008,1140) is present.
>Referenced SOP Instance UID | (0008,1155) | IMAGE | 1C | Required if Referenced Image Sequence (0008,1140) is present.
>All other elements from Referenced Image Sequence (including Purpose of Reference Code Sequence and its content) | IMAGE | 3 |
Image Position (Patient) | (0020,0032) | IMAGE | 1C | Required if present in image object.
Image Orientation (Patient) | (0020,0037) | IMAGE | 1C | Required if present in image object.
Frame of Reference UID | (0020,0052) | IMAGE | 1C | Required if present in image object.
Rows | (0028,0010) | IMAGE | 1 |
Columns | (0028,0011) | IMAGE | 1 |
Pixel Spacing | (0028,0030) | IMAGE | 1C | Required if present in image object.

### Note

1. The Basic Directory Information Object definition in PS3.3 defines the following attributes as Type 1 or 2: for PATIENT directory records: (0010,0010) Patient's Name; for STUDY directory records: (0008,0050) Accession Number, (0008,0020) Study Date, (0008,1030) Study Description; for SERIES directory records: (0008,0060) Modality. Hence these are not redefined here.

2. The Basic Directory Information Object definition in PS3.3 allows for the optional inclusion of Icon Images at the IMAGE or SERIES level. These remain optional for this profile, and the choice of whether or not to include Icon Images for every image or series, or in a more selective manner, is left up to the implementer. E.3.3.3 describes restrictions that apply to Icon Images that are included in this profile.

#### E.3.4.1 Image Attribute Values

The attributes listed in Table E.3-3 used within CT Image files, those listed in Table E.3-4 used within MR Image files, those listed in Table E.3-5 used within grayscale SC Image files, and those listed in Table E.3-6 used within color SC Image files, shall take the values specified, which are more specific than, but must be consistent with, those specified in the definition of the CT, MR and SC Image Information Object Definitions in PS3.3.

Table E.3-3. STD-CTMR Required Image Attribute Values for CT Images

Attribute | Tag | Value
--- | --- | ---
Modality | (0008,0060) | CT
Photometric Interpretation | (0028,0004) | MONOCHROME2

Table E.3-4. STD-CTMR Required Image Attribute Values for MR Images

Attribute | Tag | Value
--- | --- | ---
Modality | (0008,0060) | MR
Photometric Interpretation | (0028,0004) | MONOCHROME2
Bits Stored | (0028,0101) | 8, 12 to 16
High Bit | (0028,0102) | Bits Stored (0028,0101) - 1

### Note

The definition of the MR Composite Image Object in PS3.3 does not restrict (0028,0101) Bits Stored or (0028,0102) High Bit.

Table E.3-5. STD-CTMR Required Image Attribute Values for Grayscale SC Images

Attribute | Tag | Value
--- | --- | ---
Samples Per Pixel | (0028,0002) | 1
Photometric Interpretation | (0028,0004) | MONOCHROME2
Bits Allocated | (0028,0100) | 8 or 16
Bits Stored | (0028,0101) | Bits Allocated (0028,0100)
High Bit | (0028,0102) | Bits Stored (0028,0101) - 1

Table E.3-6. STD-CTMR Required Image Attribute Values for Color SC Images

Attribute | Tag | Value
--- | --- | ---
Samples Per Pixel | (0028,0002) | 1
Photometric Interpretation | (0028,0004) | PALETTE COLOR
Bits Allocated | (0028,0100) | 8
Bits Stored | (0028,0101) | 8
High Bit | (0028,0102) | 7

##### E.3.4.1.1 Attribute Value Precedence

Retired.

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