Digdiag12 VR 130 DICOM Digital Diagnost R1.2

User Manual: VR 130

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Philips Medical Systems
DICOM Conformance Statement
Digital Diagnost
R 1.2

Document Number 4512 130 91942
10 October 2001

Page ii

DICOM Conformance Statement

4512 130 91942 - 10 Oct 01

Philips Medical Systems Nederland B.V.
Medical Imaging IT, Interoperability
Building QV-282
P.O. Box 10.000
5680 DA Best
The Netherlands
Tel.: +31 40 2763079
Fax.: +31 40 2764263
email: dicom@philips.com
Internet: http://www.medical.philips.com/dicomcs/

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DICOM Conformance Statement

Page iii

Table of Contents
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
2
2.1
2.2
2.3
3
3.1
3.1.1
3.1.2
3.1.3
4
4.1
4.1.1
5
5.1
5.1.1
5.1.2
5.2
5.3
5.4
5.4.1
5.4.2
5.4.3
6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope and field of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents and structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used definitions, terms and abbreviations . . . . . . . . . . . . . . . . . . . . . .
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Important note to the reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Acronyms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . .
Implementation model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Data Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional definition of Application Entities . . . . . . . . . . . . . . . . . . . .
Sequencing of Real World Activities . . . . . . . . . . . . . . . . . . . . . . . . . .
AE Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AE Digital Diagnost DICOM Export Specification . . . . . . . . . . . . . . .
Association Establishment Policies . . . . . . . . . . . . . . . . . . . . . . . . .
Association Initiation Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Association Acceptance Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communication Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TCP/IP Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical Media Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AE Title/Presentation Address mapping . . . . . . . . . . . . . . . . . . . . . . .
Local AE Titles and Presentation Addresses . . . . . . . . . . . . . . . . . .
Remote AE Titles and Presentation Addresses . . . . . . . . . . . . . . . .
Configurable parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Export Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configurable Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bits stored . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Photometric Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Support of Extended Character Sets . . . . . . . . . . . . . . . . . . . . . . . . . . .

1
1
1
1
1
1
2
3
4
4
4
4
5
5
5
6
14
15
15
15
16
16
16
16
16
16
16
17
17
17
19

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DICOM Conformance Statement

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DICOM Conformance Statement

Page 1 of 19

Introduction

1 Introduction
This chapter provides general information about the purpose, scope and contents of this Conformance Statement.
1.1 Scope and field of application
The scope of this DICOM Conformance Statement is to facilitate data exchange with equipment of Philips Medical Systems. This document specifies the compliance to the DICOM
standard (formally called the NEMA PS 3.X standards). It contains a short description of the
applications involved and provides technical information about the data exchange capabilities
of the equipment. The main elements describing these capabilities are: the supported DICOM
Service Object Pair (SOP) Classes, Roles, Information Object Definitions (IOD) and Transfer
Syntaxes.
The field of application is the integration of the Philips Medical Systems equipment into an
environment of medical devices.
This Conformance Statement should be read in conjunction with the DICOM standard and its
addenda [DICOM].
1.2 Intended audience
This Conformance Statement is intended for:
• (potential) customers,
• system integrators of medical equipment,
• marketing staff interested in system functionality,
• software designers implementing DICOM interfaces.
It is assumed that the reader is familiar with the DICOM standard.
1.3 Contents and structure
The DICOM Conformance Statement is contained in chapter 2 through 7 and follows the contents and structuring requirements of DICOM PS 3.2.
1.4 Used definitions, terms and abbreviations
DICOM definitions, terms and abbreviations are used throughout this Conformance Statement.
For a description of these, see NEMA PS 3.3 and PS 3.4.
The word Philips in this document refers to Philips Medical Systems.
1.5 References
[DICOM]
The Digital Imaging and Communications in Medicine (DICOM) standard:
NEMA PS 3.X 2000
National Electrical Manufacturers Association (NEMA) Publication Sales
1300 N. 17th Street, Suite 1847
Rosslyn, Va. 22209, United States of America

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DICOM Conformance Statement

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Introduction

1.6 Important note to the reader
This Conformance Statement by itself does not guarantee successful interoperability of Philips
equipment with non-Philips equipment. The user (or user’s agent) should be aware of the following issues:
• Interoperability
Interoperability refers to the ability of application functions, distributed over two or more
systems, to work successfully together. The integration of medical devices into a networked
environment may require application functions that are not specified within the scope of
DICOM. Consequently, using only the information provided by this Conformance Statement does not guarantee interoperability of Philips equipment with non-Philips equipment.
It is the user’s responsibility to analyse thoroughly the application requirements and to
specify a solution that integrates Philips equipment with non-Philips equipment.
• Validation
Philips equipment has been carefully tested to assure that the actual implementation of the
DICOM interface corresponds with this Conformance Statement.
Where Philips equipment is linked to non-Philips equipment, the first step is to compare the
relevant Conformance Statements. If the Conformance Statements indicate that successful
information exchange should be possible, additional validation tests will be necessary to
ensure the functionality, performance, accuracy and stability of image and image related
data. It is the responsibility of the user (or user’s agent) to specify the appropriate test suite
and to carry out the additional validation tests.
• New versions of the DICOM Standard
The DICOM Standard will evolve in future to meet the user’s growing requirements and to
incorporate new features and technologies. Philips is actively involved in this evolution and
plans to adapt its equipment to future versions of the DICOM Standard. In order to do so,
Philips reserves the right to make changes to its products or to discontinue its delivery.
The user should ensure that any non-Philips provider linking to Philips equipment, also
adapts to future versions of the DICOM Standard. If not, the incorporation of DICOM
enhancements into Philips equipment may lead to loss of connectivity (in case of networking) and incompatibility (in case of media).

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DICOM Conformance Statement
Introduction

1.7 General Acronyms and Abbreviations.
The following acronyms and abbreviations are used in the document.
• ACC
American College of Cardiology
• AE
Application Entity
• ACR
American College of Radiology
• ANSI
American National Standard Institute
• BOT
Basic Offset Table
• CD-R
CD Recordable
• CD-M
CD Medical
• DCI
Digital Cardio Imaging
• DCR
Dynamic Cardio Review
• DICOM
Digital Imaging and Communication in Medicine
• DIMSE
DICOM Message Service Element
• DIMSE-C
DICOM Message Service Element-Composite
• DIMSE-N
DICOM Message Service Element-Normalized
• ELE
Explicit VR Little Endian
• EBE
Explicit VR Big Endian
• FSC
File Set Creator
• GUI
Graphic User Interface
• HIS
Hospital Information System
• HL7
Health Level Seven
• ILE
Implicit VR Little Endian
• IOD
Information Object Definition
• ISIS
Information System - Imaging System
• NEMA
National Electrical Manufacturers Association
• PDU
Protocol Data Unit
• RIS
Radiology Information System
• RWA
Real World Activity
• SC
Secondary Capture
• SCM
Study Component Management
• SCP
Service Class Provider
• SCU
Service Class User
• SOP
Service Object Pair
• TCP/IP
Transmission Control Protocol/Internet protocol
• UID
Unique Identifier
• WLM
Worklist Management

Page 3 of 19

Page 4 of 19

DICOM Conformance Statement

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Implementation model

2 Implementation model
The Digital Diagnost R1.2 of Philips Medical Systems is an Computed Radiography (CR)
image generating system. It contains an Export function based on the DICOM Image Storage
to transfer image data from the Digital Diagnost system to a remote system. This DICOM
Export function is described in this document.
2.1 Application Data Flow Diagram
The Digital Diagnost DICOM Export transfers a Digital Diagnost image to a remote DICOM
system. This is activated by an operator request or automatically if the system is configured to
do so. A remote destination is selected from the user interface, followed by the selection of the
image to be transferred.
Post-processed image data can be transferred (pixel value between 0 and 30,000) as an
instance of the DICOM Computed Radiography IOD. The images transferred are intended for
viewing purpose and VOI LUT transformation (grayscale transformation) only.
The Digital Diagnost DICOM Export behaves as a single Application Entity. The related
Implementation Model is shown in Figure 2-1 on page 4.

Local

DICOM
Image
Export
Request

Remote

Digital
Diagnost
DICOM
Export

Store
Image
Remotely

DICOM
Standard Interface
Figure 2-1: Digital Diagnost DICOM Export Implementation Model

2.2 Functional definition of Application Entities
The Digital Diagnost DICOM Export application entity acts as a Service Class User (SCU) of
the Storage Service Class. After invoking it will open an association to the remote system. For
each image to be transported a retrieve action from the internal Digital Diagnost storage will
take place followed by the conversion to a DICOM message to be transferred to the remote
system.
2.3 Sequencing of Real World Activities
Not applicable.

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DICOM Conformance Statement

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AE Specifications

3 AE Specifications
Digital Diagnost DICOM Export acts as a single Application Entity.
3.1 AE Digital Diagnost DICOM Export Specification
The Digital Diagnost Export Application Entity provides Standard Extended Conformance to
the following DICOM 3.0 SOP class as an SCU:
Table 3-1: Supported SOP class by the Digital Diagnost Export AE as SCU
SOP class Name
Computed Radiography Image Storage

UID
1.2.840.10008.5.1.4.1.1.1

The Digital Diagnost Export Application Entity does not support DICOM 3.0 SOP Classes as
SCP.
3.1.1 Association Establishment Policies
3.1.1.1 General
The Digital Diagnost export will offer a fixed maximum PDU size of 16K = 16384 bytes on
the associations initiated by the application itself.
3.1.1.2 Number of Associations
The Digital Diagnost export will attempt to establish one association at a time.
3.1.1.3 Asynchronous Nature
The Digital Diagnost export does not support asynchronous operations and will not perform
asynchronous window negotiation.
3.1.1.4 Implementation Identifying Information
The Implementation Class UID is: “1.3.46.670589.26.1.2“.
The implementation version name is: “DigiDiagnost1.2”.

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DICOM Conformance Statement

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AE Specifications

3.1.2 Association Initiation Policy
The Digital Diagnost export initiates associations as a result of only one Real-World activity
and is described below.
3.1.2.1 The Digital Diagnost DICOM Image Export Request
3.1.2.1.1
Associated Real-World Activity
The DICOM Image Export Request can be done on the following ways:
• the operator requests via the User Interface the export of the selected Digital Diagnost
image to a remote system,
• the generation of a new Digital Diagnost image will result in an automatic export of that
image when the system is configured in automatic export mode.
For each export request a new association is set-up, then the transfer of the image is started.
The association is released when the transfer is ended. The transferred image will not be
deleted from the system.
In case of unsuccessful transfer with special response status conditions (e.g. Store SCP down),
a new attempt will be done automatically every 20 seconds. These queued export requests can
be aborted by the operator.
3.1.2.1.2
Proposed Presentation Contexts
The Digital Diagnost export will propose the following presentation contexts:
Table 3-2: Proposed Presentation Contexts for the Digital Diagnost Export
Presentation Context table
Abstract Syntax

Transfer Syntax

Name

UID

Computed Radiography
Image Storage

1.2.840.10008.5
.1.4.1.1.1

Name List
ILE
ELE
EBE

Role

Extended
Negotiation

SCU

None

UID List
1.2.840.10008.1.2
1.2.840.10008.1.2.1
1.2.840.10008.1.2.2

3.1.2.1.3
SOP Specific Conformance to Storage SOP Classes
The Digital Diagnost provides standard conformance to the Storage Service Class.
The status of the C-STORE Response (Success, Refused, Error, Warning) will be displayed
via the user interface.
Extended negotiation is not supported.
Table 3-3 lists the applied optional and extended modules and attributes of the CR IOD. Conditional attributes Patient Orientation (type 2C), Image Date (type 2C), Image Time (type 2C),
Specific Character Set (type 1C) are always present.

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DICOM Conformance Statement

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AE Specifications

Table 3-3: Applied optional Modules and Attributes of the applied CR IOD
IE

Module

Optional Attributes

Conditional Attributes

Patient

Other Patient’s ID, Ethnic Group,
Patient Comments

Study

General Study

Study Description, Physician(s)
of Record

Patient Study

Additional Patient’s History

General Series

Series Date, Series Time, Operator’s Name, Protocol Name

Laterality.

CR Series

Filter Type, Focal Spot(s), Plate
Type, Focal Spot(s)

Equipment

General Equipment

Institution Name, Station Name,
Institutional Department Name,
Manufacturer’s Model name,
Device Serial Number, Software
Version(s), Date of Last Calibration, Time of Last Calibration

Image

General Image

Image Type, Acquisition
Number, Image Comments

Image Date, Image Type, Patient
Orientation

Image Pixel

X-Ray Acquisition

Image Area Dose Product, Grid,
Imager Pixel Spacing

XRF Tomagraphy
Acquisition

Tomo Angle, Tomo Time, Scan
Options

CR Image

KVP, Distance Source to Detector, Exposure Time, Exposure,
Sensitivity, Generator Power,
Collimator/Grid Name, Processing Function, Postprocessing
Function

VOI LUT

Window Center

Window Width

SOP Common

Specific Character Set

Series

Page 8 of 19

DICOM Conformance Statement

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AE Specifications

The modules selected from the CR Image IOD module table of DICOM 3.0 and the extended
modules are given in the table below.
Table 3-4: Applied Modules in the Extended CR IOD
IE

Module

Reference

Patient

Table 3-5

Study

General Study

Table 3-6

Patient Study

Table 3-7

General Series

Table 3-8

CR Series

Table 3-9

Equipment

General Equipment

Table 3-10

Image

General Image

Table 3-11

Image Pixel

Table 3-12

CR Image

Table 3-13

Private

Table 3-14

X-Ray Acquisition

Table 3-15

XRF Tomagraphy Acquisition

Table 3-16

VOI LUT

Table 3-17

SOP Common

Table 3-18

Series

The details of these applied modules are given in the tables below. The list of possible attribute
values are given (if applicable). The situation that an attribute is present conditionally/optionally or that an attribute may contain a zero length value, is indicated too.
The greyed attributes are the attributes from which the contents are received from the RIS via
the EasyLink.
Table 3-5: Computed Radiography Image Storage SOP Class - Patient Module
Attribute Name

Tag

Note

Patient's Name

0010,0010

Received from RIS or filled in by Operator or
is empty.

Patient ID

0010,0020

Received from RIS or filled in by Operator or
is empty.

Patient's Birth Date

0010,0030

Received from RIS or filled in by Operator or
is empty.

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AE Specifications

Table 3-5: Computed Radiography Image Storage SOP Class - Patient Module (Continued)
Attribute Name

Tag

Note

Patient's Sex

0010,0040

Received from RIS or filled in by Operator or
is empty.
Applied value(s): F, M, O

Other Patient IDs

0010,1000

Received from RIS or filled by operator or is
empty.

Ethnic Group

0010,2160

Received from RIS or filled by operator or is
empty.

Patient Comments

0010,4000

Received from RIS or filled by operator or is
empty.

Table 3-6: Computed Radiography Image Storage SOP Class - General Study Module
Attribute Name

Tag

Note

Physician(s) of Record

0008,1048

Received from RIS or filled by operator or is
empty.

Study Date

0008,0020

First Image Date of an acquisition sequence of
a Study.

Study Time

0008,0030

First Image Time of an acquisition sequence
of a Study.

Accession Number

0008,0050

Received from RIS or filled by operator or is
empty.

Referring Physician's Name

0008,0090

Received from RIS or filled by operator or is
empty..

Study Description

0008,1030

Additional Patient’s History

0010,21B0

Received from RIS or filled by operator or is
empty.

Study Instance UID

0020,000D

Received from RIS or generated by Digital
Diagnost.

Study ID

0020,0010

Digital Diagnost generated.

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DICOM Conformance Statement

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AE Specifications

Table 3-7: Computed Radiography Image Storage SOP Class - General Series Module
Attribute Name

Tag

Note

Series Date

0008,0021

Identical to Study Date.

Series Time

0008,0031

Modality

0008,0060

Applied value(s): CR

Operator's name

0008,1070

Filled in by operator or is empty.

Protocol Name

0018,1030

Received from RIS of filled by operator or is
empty.

Series Instance UID

0020,000E

Digital Diagnost generated, derived from
Series Number.

Series Number

0020,0011

Digital Diagnost generated.

Laterality

0020,0060

Always Empty

Table 3-8: Computed Radiography Image Storage SOP Class - C-STORE-RQ - Patient Study Module

Attribute Name
Additional Patient History

Tag

Note

0010,21B0

Table 3-9: Computed Radiography Image Storage SOP Class - CR Series Module
Attribute Name

Tag

Body Part Examined

0018,0015

Filter Type

0018,1160

Focal Spot(s)

0018,1190

Plate Type

0018,1260

View Position

0018,5101

Note
Applied value(s): ABDOMEN, ANKLE,
BREAST, CHEST, CLAVICLE, COCCYX,
CSPINE, ELBOW, EXTREMITY, FOOT,
HAND, HIP, KNEE, LSPINE, PELVIS,
SHOULDER, SKULL, SSPINE, TSPINE

Applied value(s): AP, LL, LLD, LLO, PA,
RL, RLD, RLO

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DICOM Conformance Statement

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AE Specifications

Table 3-10: Computed Radiography Image Storage SOP Class - General Equipment Module
Attribute Name

Tag

Manufacturer

0008,0070

Institution Name

0008,0080

Station Name

0008,1010

Institutional Department Name

0008,1040

Manufacturer's Model Name

0008,1090

Device Serial Number

0018,1000

Software Version(s)

0018,1020

Date of Last Calibration

0018,1200

Time of Last Calibration

0018,1201

Note
Applied value(s): Philips Medical Systems

Applied value(s): digital DIAGNOST

Table 3-11: Computed Radiography Image Storage SOP Class - General Image Module
Attribute Name

Tag

Note

Image Type

0008,0008

Applied Value(s): DERIVED\ PRIMARY

Content Date

0008,0023

Content Time

0008,0033

Acquisition Number

0020,0012

Instance Number

0020,0013

Is composed of Digital Diagnost acquisition
and post number.

Patient Orientation

0020,0020

Applied Value(s): A, F, H, L, P, R

Image Comments

0020,4000

Text from annotationtool included.

Table 3-12: Computed Radiography Image Storage SOP Class - Image Pixel Module
Attribute Name

Tag

Note

Samples per Pixel

0028,0002

Applied value(s): 1

Photometric Interpretation

0028,0004

Applied value(s): MONOCHROME1,
MONOCHROME2.
In combination with EV RAD:
Applied value(s):MONOCHROME2

Rows

0028,0010

Columns

0028,0011

Bits Allocated

0028,0100

Applied Value(s): 16, 8

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DICOM Conformance Statement

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AE Specifications

Table 3-12: Computed Radiography Image Storage SOP Class - Image Pixel Module (Continued)
Attribute Name

Tag

Note

Pixel Spacing

0028,0030

Bits Stored

0028,0101

Applied Value(s): 10, 12, 15, 8

High Bit

0028,0102

Applied Value(s): 11, 14, 7, 9

Pixel Representation

0028,0103

Applied value(s): 0000

Table 3-13: Computed Radiography Image Storage SOP Class - CR Image Module
Attribute Name

Tag

Pixel Data

7FE0,0010

KVP

0018,0060

Distance Source to Detector(SID)

0018,1110

Exposure Time

0018,1150

Exposure

0018,1152

Generator Power

0018,1170

Acquisition Device Processing
Description

0018,1400

Collimator/Grid Name

0018,1180

Processing Function

0018,5020

Postprocessing Function

0018,5021

Sensitivity

0018,6000

Note

Table 3-14: Computed Radiography Image Storage SOP Class - Private Module
Attribute Name

Tag

Note

Private Creator Group 0019

0019,0019

Only exported when image is exported for
printing
Applied Value(s): DIDI TO PCR 1.1

Route AET

0019,1922

PCR Print Scale

0019,1923

Only exported when image is exported for
printing

PCR Print Job End

0019,1924

Only exported when image is exported for
printing

PCR No Film Copies

0019,1925

Only exported when image is exported for
printing

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DICOM Conformance Statement

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AE Specifications

Table 3-14: Computed Radiography Image Storage SOP Class - Private Module (Continued)
Attribute Name

Tag

Note

PCR Film Layout Position

0019,1926

Only exported when image is exported for
printing

PCR Print Report Name

0019,1927

Only exported when image is exported for
printing

RAD Protocol Printer

0019,1970

Only exported when image is exported for
printing

RAD Protocol Medium

0019,1971

Only exported when image is exported for
printing

Private Creator

0089,0010

Applied Value(s): DIDI TO PCR 1.1

Stamp Image Sequence

0089,1020

>Samples per Pixel

0028,0002

Applied Value(s): 1

>Photometric Interpretation

0028,0004

Applied Value(s): MONOCHROME1

>Rows

0028,0010

Maximum value 512

>Columns

0028,0011

Maximum value 512

>Bits Allocated

0028,0100

Applied Value(s): 8

>Bits Stored

0028,0101

Applied Value(s): 8

>High Bit

0028,0102

Applied Value(s): 7

>Pixel Representation

0028,0103

Applied Value(s): 0x000

>Pixel Data

7FE0,0010

Table 3-15: Computed Radiography Image Storage SOP Class - C-STORE-RQ - X-ray Acquisition
Module

Attribute Name

Tag

Image Area Dose Product

0018,115E

Imager Pixel Spacing

0018,1164

Grid

0018,1166

Note

Applied Value(s): IN, NONE

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DICOM Conformance Statement

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AE Specifications

Table 3-16: Computed Radiography Image Storage SOP Class - C-STORE-RQ - X-ray Tomography
Acquisition Module

Attribute Name

Tag

Note

Scan Options

0018,0022

Applied Value(s): TOMO

Tomo Layer Height

0018,1460

Distance in mm between the table surface
and the sharp image plane.

Tomo Angle

0018,1470

Angle span in degrees of rotation of X-ray
source during X-Ray acquisition.

Tomo Time

0018,1480

Time in seconds the source has taken to
rotate the Tomo Angle during X-Ray acquisition.

Table 3-17: Computed Radiography Image Storage SOP Class - VOI LUT Module
Attribute Name

Tag

Window Center

0028,1050

Window Width

0028,1051

Note

Table 3-18: Computed Radiography Image Storage SOP Class - SOP Common Module
Attribute Name

Tag

Note

Specific Character Set

0008,0005

Applied Value(s): ISO_IR 100

SOP Class UID

0008,0016

Applied value(s): 1.2.840.10008.5.1.4.1.1.1

SOP Instance UID

0008,0018

Generated by Digital Diagnost.

3.1.3 Association Acceptance Policy
The Digital Diagnost does not accept associations.

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DICOM Conformance Statement

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Communication Profiles

4 Communication Profiles
4.1 TCP/IP Stack
The Digital Diagnost provides DICOM 3.0 TCP/IP Network Communication Support as
defined in Part 8 of the DICOM 3.0 Standard.
4.1.1 Physical Media Support
The Digital Diagnost system supports ISO 8802-3 10BASE-T and 100Base-TX Ethernet.

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DICOM Conformance Statement

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Configuration

5 Configuration
The configuration of a Digital Diagnost system is done by means of updating configuration
files. This should be done by Philips service engineers only.
5.1 AE Title/Presentation Address mapping
5.1.1 Local AE Titles and Presentation Addresses
The local Application Entity Title and Presentation Address are configurable.
5.1.2 Remote AE Titles and Presentation Addresses
All remote applications to be selected as export destination (SCP) are configurable for the following items:
• The Application Entity Title of the remote application.
• The Presentation Address at which the remote application should accept association
requests.
• The Remote Host Name of the system on which the remote application resides.
5.2 Configurable parameters
• The Character Set is ISO-IR 100 which is the Latin alphabet No. 1, supplementary set.
• Whether a RIS is connected to a Digital Diagnost or not (this influences some attribute values of the exported DICOM images; see section 3.1.2.1.3 on page 6)
• Whether automatic transfer of generated images will be done to a configured destination or
not (i.e. the automatic export mode which can be switched on or off; see section 3.1.2.1 on
page 6)
5.3 Export Filter
The Digital Diagnost system stores images internally with 15 bit depth, MONOCHROME1
format. The pixel values are 10000 times that of the optical density, which this pixel should
have on film.
The Export Filter converts the Digital Diagnost pixel data into data fitting the requirements of
the receiving station.
To meet the different requirements of different receiving stations, it is possible to create one
Configuration for every SCP.
5.4 Configurable Attributes
For every SCP it is possible to configure the following:
Bits stored (0028, 0101)
Photometric Interpretation (0028, 0004)
One of four modes

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DICOM Conformance Statement

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Configuration

5.4.1 Bits stored
See also Table 3-12, “Computed Radiography Image Storage SOP Class - Image Pixel Module,” on page 11.
The possible values for Bits stored are:
8, 10, 12, 15.
Giving the following derived values:
Bits allocated: 8, 16, 16, 16
High Bit: 7, 9, 11, 14.
5.4.2 Photometric Interpretation
The possible values for Photometric Interpretation are:
MONOCHROME1 or MONOCHROME2.
5.4.3 Modes
1) Full Range
The source data range is mapped to the full destination range.
Advantage: Uses the maximum precision of the output range.
Disadvantage:There is the possibility, that consecutive images are harder to
compare.
It is possible to apply an additional non-linear pixel transformation.

2) Film-like
The number of bits is reduced by the division through a constant factor.
Advantage: Consecutive images are easier to compare
Disadvantage: Reduced precision, compared to that of full range mode.
It is possible to apply an additional non linear pixel transformation.
3) Grayscale Display Function Standard (p-values)
The Digital Diagnost image pixel values represent optical densities on a film
according to DICOM PS 3.14.An image is a kind of virtual film, which can be
put in front of a virtual light box. The result is, a range of luminescence values.
These values are transformed into perceptual linear values using the whole
output range which is defined by the "Bits stored" parameter.
These values are exported.
The viewing station should be able to display these values in a perceptual linear
manner. This means in most cases a non linear mapping between the input pixel
© Philips Medical Systems Nederland B.V. 2001
All rights reserved

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DICOM Conformance Statement

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Configuration

and the data send to the graphic card.
Advantage:

Very good quality, if the viewing station supports the Grayscale
Standard Display Function.
Disadvantage:There are many viewing stations not supporting the Grayscale
Standard Display Function.

4) Measured
In addition to the processing described before, a second pixel transformation is
calculated by using measured luminescence values of the viewing device.
This results in a perceptual linear behaviour of the viewing device.
Advantage:

It is possible to achieve results similar to the results of a viewing
station supporting the Grayscale Display Function Standard (pvalues).
Disadvantage:Changing brightness and contrast at the viewing station, the calibration has to be redone and the Export Filter settings must be
adapted. Changing window center/window width at the viewing
station can produce results below optimum.

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DICOM Conformance Statement
Support of Extended Character Sets

6 Support of Extended Character Sets
The Digital Diagnost export supports Character Sets ISO-IR 100.

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Source Exif Data:

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EXIF Metadata provided by EXIF.tools

Digdiag12 VR 130 DICOM Digital Diagnost R1.2

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