Dvd media Application Profiles


Update Application Profiles



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Update Application Profiles


This supplement also takes the opportunity to modernize the 1K angio and CT/MR profiles by removing support for the standalone and detached patient management SOP Classes.

Form of This Supplement


This supplement defines the use of DVD-R, DVD-RW, DVD+R, DVD+RW, and DVD-ROM. It defines the “reading” aspects of the media, as there are several media formats that can be created that are compatible with the reading requirements of this profile.

It specifies the use of the Universal Disk Format (UDF) with any version up to 2.01, and ISO 9660 Levels 1, 2 and 3.

Media Application Profiles are defined for 1K XA Images, US Images, General Purpose applications and CT/MR.

This Supplement makes changes to the following existing Parts of DICOM:

- PS 3.11 Addendum: Media Storage Application Profiles

- PS 3.12 Addendum: Media Formats and Physical Media

PS 3.11: Add DVD profile to Annex B – 1024 X-ray Angiographic Application Profile, and update SOP Classes supported.

B.1 Class and Profile Identification


This Annex defines a class of Application Profiles for 1024 X-ray Angiographic clinical applications. The identifier for this class shall be STD-XA1K. It is the intent of this these profiles to be backward compatible with the Basic Cardiac X-ray Angiographic Application Profile (STD-XABC-CD) in PS 3.11 Annex A.

The specific Application Profiles in this class are shown in the Table 1.



Application Profile

Identifier

Description

1024 X-Ray Angiographic Studies on CD-R Media

STD-XA1K-CD

It handles single frame or multi-frame x-ray digital images up to 1024x1024x12 bits; biplane acquisitions are encoded as two single plane information objects. Secondary Capture images are supported.

1024 X-Ray Angiographic Studies on DVD Media

STD-XA1K-DVD

It handles single frame or multi-frame x-ray digital images up to 1024x1024x12 bits; biplane acquisitions are encoded as two single plane information objects. Secondary Capture images are supported.

...

B.2.1.1 File Set Creator


An FSC shall offer the ability to either finalize the disc at the completion of the most recent write session (no additional information can be subsequently added to the disc) or to allow multi-session (additional information may be subsequently added to the disc). An FSC may allow packet-writing if supported by the media and file system specified in the profile.

Note: A multiple volume (a logical volume that can cross multiple physical media) is not supported by this Application Profile Class. If a set of Files, e.g., a Study, cannot be written entirely on one CD-R piece of media, the FSC will create multiple independent DICOM File-set such that each File-set can reside on a single CD-R piece of mediuma controlled by its individual DICOMDIR file. The user of the FSC can opt to use written labels on the discs to reflect that there is more than one disc for this set of files (e.g., a Study).


B.2.1.3 File Set Updater


The role of File Set Updater shall be used by Application Entities which receive a transferred File Set and update it by the addition of processed information. Typical entities using this role would include analytic workstations, which for instance may add to the File Set an information object containing a processed (e.g., edge-enhanced) image frame. Stations which update patient information objects would also use this role. File-set Updaters shall be able to read and update the DICOMDIR file. File-set Updaters do not have to read the image information object. File-set Updaters shall be able to generate any of the SOP Instances files defined for the specific Application Profiles to which a conformance claim is made, and to read and update the DICOMDIR file.

An FSU shall offer the ability to either finalize the disc at the completion of the most recent write session (no additional information can be subsequently added to the disc) or to allow multi-session (additional information may be subsequently added to the disc).

Note: If the disc has not been finalized, the File-set Updater will be able to update information assuming there is enough space on the disc to write a new DICOMDIR file, the information, and the fundamental CD-R volume control structures. CD-R Volume control structures are the structures that are inherent to the CD-R media standards of the physical volume; see PS 3.12.

The FSU role is not defined for the STD-XA1K-DVD profile.

B.3 STD-XA1K-CD Application Profile Class Requirements

B.3.1 SOP Classes and Transfer Syntaxes


This Application Profile Class is based on the Media Storage Service Class with the Interchange Option (see PS 3.4).

SOP Classes and corresponding Transfer Syntaxes supported by this Application Profile are specified in Table B.3-1.



Table B.3-1
STD-XA1K-CD SOP Classes and Transfer Syntaxes


Information Object Definition

Service Object Pair Class UID

Transfer Syntax and UID

FSC Require ment

FSR Require ment

FSU Require ment (See note 1)

Basic Directory

1.2.840.10008.1.3.10

Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1

Mandatory

Mandatory

Mandatory

X-Ray Angiographic Image

1.2.840.10008.5.1.4.1.1.12.1

JPEG Lossless Process 14 (selection value 1) 1.2.840.10008.1.2.4.70

Mandatory

Mandatory

Optional

X-Ray Angiographic Image

1.2.840.10008.5.1.4.1.1.12.1

JPEG Lossy, Baseline Sequential with Huffman Coding (Process 1) 1.2.840.10008.1.2.4.50

Optional for DVD; Disallowed for CD

Mandatory for DVD; Disallowed for CD

Undefined for DVD; Disallowed for CD

Secondary Capture Image Storage

1.2.840.10008.5.1.4.1.1.7

Explicit VR Little Endian Uncompressed 1.2.840.10008.1.2.1

Optional

Mandatory

Optional

Grayscale Softcopy Presentation State Storage

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

Optional

Standalone Overlay

1.2.840.10008.5.1.4.1.1.8

Explicit VR Little Endian Uncompressed

1.2.840.10008.1.2.1

Optional

Optional

Optional

Standalone Curve

1.2.840.10008.5.1.4.1.1.9

Explicit VR Little Endian Uncompressed

1.2.840.10008.1.2.1

Optional

Optional

Optional

Detached Patient Management

1.2.840.10008.3.1.2.1.1

Explicit VR Little Endian Uncompressed

1.2.840.10008.1.2.1

Optional

Mandatory

Optional

Notes: 1. The FSU requirement is not defined for STD-XA1K-DVD profile.

2. The Standalone Overlay, Standalone Curve and Detached Patient management SOP Classes were formerly defined in these profiles, but have been retired. The Grayscale Softcopy Presentation State Storage SOP Class has been added as the preferred mechanism for conveying annotations.

B.3.2 Physical Media And Media Formats


The 1024 X-Ray Angiographic Application CD-R Profiles in the STD-XA1K-CD class requires the 120 mm CD-R physical media with the ISO/IEC 9660 Media Format, as defined in PS3.12.

The 1024 X-Ray Angiographic Application DVD profile STD-XA1K-DVD requires any of the 120 mm DVD media other than DVD-RAM as defined in PS 3.12.

...

B.3.3.1 Additional Keys


Table B.3-2 specifies the type of Directory Records that shall be supported and the additional associated keys. Refer to the Basic Directory IOD in PS3.3.

Table B.3-2
STD-XA1K Additional DICOMDIR Keys


Key Attribute

Tag

Directory Record Level

Type

Notes

.....













Lossy image Compression Ratio

(0028,2112)

IMAGE

1C

Required if present in image object with a non-zero length value.

...

B.3.4.3 Attribute Value Precedence


The values of attributes contained in a Detached Patient Management SOP Instance referenced by a DICOMDIR PATIENT Directory Record shall take precedence over the values of those attributes contained in a SOP Instance referenced by a subsidiary Directory Record. The DICOMDIR Directory Records shall have key attribute values in accordance with this precedence.

Note: This allows patient identification and demographic information to be updated without changing the composite Image IOD files. The DICOMDIR file thus is critical in establishing the link between the updated information and the image. As an example, at the time an Image file was written, the patient’s name therein was incorrect, or inconsistent with the Hospital Information System records. Subsequently, a Detached Patient Management file with the corrected name is added to the file-set. The FSR should use the name from the Patient file rather than the name in the Image file.

Retired.

PS 3.11: Add DVD profile to Annex C – Ultrasound Application Profile.



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C.2.1 Roles


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C.2.1.3 FILE SET UPDATER


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The FSU role is not defined for the STD-US-xx-xx-DVD profiles (i.e. for DVD media that is not DVD-RAM).

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