K.3 General Class Profile
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## K.3 General Class Profile

### K.3.1 SOP Classes and Transfer Syntaxes

The Application Profile STD-DEN-CD shall support the SOP Classes and Transfer Syntaxes in the following table.

Table K.3-1. Dental Abstract and Transfer Syntaxes

Information Object Definition | SOP Class UID | Transfer Syntax and UID | FSC Requirement | FSR Requirement
--- | --- | --- | --- | ---
Basic Directory | 1.2.840.10008.1.3.10 | Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1 | Mandatory | Mandatory
Digital Intra-oral X-Ray Image Storage - For Presentation | 1.2.840.10008.5.1.4.1.1.1.3 | Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1 | Optional | Mandatory
Digital X-Ray Image Storage - For Presentation | 1.2.840.10008.5.1.4.1.1.1.1 | Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1 | Optional | Mandatory
Basic Structured Display Storage | 1.2.840.10008.5.1.4.1.1.131 | Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1 | Optional | Optional
Grayscale Softcopy Presentation State | 1.2.840.10008.5.1.4.1.1.11.1 | Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1 | Optional | Optional

### Note

The Digital X-Ray Image Storage and Digital Intra-oral X-Ray Image Storage For Presentation SOP Classes can also be used for scanned film.

A File Set Creator (FSC) shall support at least one of the specified image storage SOP Classes.

### K.3.2 Physical Media and Media Formats

The STD-DEN-CD profile requires the 120 mm CD-R physical media with the ISO/IEC 9660 Media Format, as defined in PS3.12.

### K.3.3 Directory Information in DICOMDIR

Conformant Application Entities shall include in the DICOMDIR File the Basic Directory IOD containing Directory Records at the Patient and the subsidiary Study and Series levels, appropriate to the SOP Classes in the File Set.

All DICOM files in the File Set incorporating SOP Instances defined for the specific Application Profile shall be referenced by Directory Records.

### Note

DICOMDIRs with no directory information are not allowed by this Application Profile.

All implementations shall include the DICOM Media Storage Directory in the DICOMDIR file. There shall only be one DICOMDIR file per File Set. The DICOMDIR file shall be in the root directory of the medium. The Patient ID at the patient level shall be unique for each patient directory record in one File Set.

No additional DICOMDIR keys are specified for this profile.

### K.3.4 Other Parameters

#### K.3.4.1 Image Attribute Values

The Attributes listed in Table K.3-3 used within the image files shall take the values specified.

Table K.3-3. STD-DEN-CD - Required Image Attribute Values

Attribute | Tag | Value
--- | --- | ---
Bits Allocated | (0028,0100) | If Bits Stored (0028,0101) is 8, then 8; otherwise 16.
Bits Stored | (0028,0101) | 8, 10, 12 or 16

#### K.3.4.2 Image Attribute Specialization

The Attributes listed in Table K.3-4 shall have their Types specialized.

Table K.3-4. STD-DEN-CD - Required Image Attribute Types

Attribute | Tag | Type
--- | --- | ---
Institution Name | (0008,0080) | 2
Manufacturer's Model Name | (0008,1090) | 2
Detector ID | (0018,700A) | 2
Detector Manufacturer Name | (0018,702A) | 2
Detector Manufacturer's Model Name | (0018,702B) | 2

### Note

These Type 3 attributes of the General Equipment and DX Detector Module are specialized in order to encourage FSCs to include values for them, recognizing that there are situations in which values may be unknown.

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