TOSHIBA AMERICA MEDICAL SYSTEMS

Transcription

1 TOSHIBA AMERICA MEDICAL SYSTEMS ULTRASOUND DICOM IMAGE MANAGER Conformance Statement Revision: 1.6 Revision: 1.6 Date: 03/08/99 Reviewed by: Desmond Hirson Approved by: Thomas Little

2 Revision History Revision Date Author Reason for Change /7/95 Andrew Initial release /7/95 Desmond DICOM IMAGE MANAGER update /08/96 Desmond Addition of List of Fields /01/97 Desmond Update for Worklist /01/98 Desmond Minor corrections /02/98 Desmond Include SCP and Removable Media update /08/99 Desmond Include Storage Commitment ii

3 CONTENTS 1. INTRODUCTION PURPOSE OF THIS DOCUMENT SOURCES FOR THIS DOCUMENT ACRONYMS AND ABBREVIATIONS TYPOGRAPHICAL CONVENTIONS IMPLEMENTATION MODEL Image Storage as SCP Image Storage as SCU Query as SCU Retrieve as SCU Storage Commitment as a SCU Basic Printing as a SCU Study Management Services as a SCU Basic Worklist Management FUNCTIONAL DEFINITIONS OF AES SEQUENCING OF REAL WORLD ACTIVITIES AE SPECIFICATIONS DICOM IMAGE MANAGER SPECIFICATIONS Association Establishment Policies General Asynchronous Nature Implementation Identifying Information Association Initiation by Real World Activity Real World Activity - Storage Real World Activity - Detached Study Management Real World Activity - Basic Worklist Management Real World Activity - Printing Real World Activity Removable Media Presentation Contexts Removable media COMMUNICATIONS PROFILES TCP/IP STACK Physical Media Support CONFIGURATION SUPPORT FOR EXTENDED CHARACTER SETS SCU BEHAVIOR SCP BEHAVIOR DICOM FIELDS IN THE DICOM IMAGE FILES...17 iii

4 Table of Figures Table 1 Storage es...9 Table 2 Storage Commitment es...9 Table 3 Detached Study Management es...9 Table 4 Basic Worklist Management es...9 Table 5 Detached Print Management es...9 Table 6 Media Storage Application Profiles...10 Table 7 Transfer Syntaxes...11 Table 8 Storage es...11 Table 9 Transfer Syntaxes...11 Table 10 Detached Study Management es...12 Table 11 Transfer Syntaxes...12 Table 12 Basic Worklist Management es...12 Table 13 Transfer Syntaxes...13 Table 14 Presentation Contexts...13 Table 15 Abstract and Transfer Syntaxes...14 Table 16 Defined Photometric Interpretation and Transfer Syntax Pairs...14 Table 17 DICOM tags used in Storage Class iv

5 5 1. Introduction 1.1 Purpose of this Document This document is a provisional DICOM Conformance Statement for the DICOM IMAGE MANAGER. DICOM IMAGE MANAGER is a service class user (SCU) for the DIMSE-C services for the storage of images. DICOM IMAGE MANAGER can be a service class provider (SCP) for the DIMSE-C services storage and retrieval of images. DICOM IMAGE MANAGER is a service class user (SCU) to initiate Storage Commitment Request to a remote DICOM SCP. DICOM IMAGE MANAGER is a service class user (SCU) to query Modality Worklist from a remote DICOM SCP. DICOM IMAGE MANAGER can be a service class user for the printing of DICOM images to a remote DICOM SCP. DICOM IMAGE MANAGER can act as a File Set Creator (FSC) to initialize MOD media and create a DICOM File-set on the media. DICOM IMAGE MANAGER can act as a File Set Reader (FSR) to access one or more files on a File-set on MOD media. DICOM IMAGE MANAGER can act as a File Set Updater (FSU) to add additional files or delete existing files on a DICOM File-set on MOD media. 1.2 Sources for this Document American College of Radiology-National Electrical Manufacturers Association (ACR-NEMA) Digital Imaging and Communications v2.0, ACR-NEMA Digital Imaging and Communications in Medicine (DICOM) v3.0, Final Draft, Aug. 1993, 1996

6 6 1.3 Acronyms and Abbreviations The following acronyms and abbreviations are used in this document. ACR American College of Radiology ANSI American National Standards Institute DICOM Digital Imaging and Communications in Medicine DIMSE DICOM Message Service Element DIMSE-C DICOM Message Service Element-Composite DIMSE-N DICOM Message Service Element-Normalized NEMA National Electrical Manufacturers Association PDU Protocol Data Unit SCP Service Class Provider SCU Service Class User SOP Service Object Pair TCP/IP Transmission Control Protocol/Internet Protocol UID Unique Identifier 1.4 Typographical Conventions This section is designed to assist the reader in understanding the terms and typographical conventions used in this document. Formatting convention Bold type Italic type Type of information DICOM, or DIMSE Service Application Entity

7 7 2. Implementation Model DICOM IMAGE MANAGER can store images to remote DICOM SCPs, print images to remote DICOM printers, send study management services as a SCU, and perform basic Worklist management. The system can also query a remote SCP for a patient study for review. This process uses the SCP functionality of the DICOM IMAGE MANAGER. The system can also create, read or update DICOM compliant removable media Image Storage as SCP DICOM IMAGE MANAGER can receive DICOM images. The images are incorporated into the internal database as part of a patient study. The images can then be reviewed on the monitor of the host machine Image Storage as SCU DICOM IMAGE MANAGER stores an image to a remote DICOM SCP or to onboard DICOM Removable Media Query as SCU DICOM IMAGE MANAGER can send query requests to retrieve patient, study, series, and image information from a remote DICOM SCP Retrieve as SCU DICOM IMAGE MANAGER can send retrieve requests to retrieve an image directly from a remote DICOM SCP Storage Commitment as a SCU DICOM IMAGE MANAGER is capable of being a SCU to issue Storage Commitment request to a remote DICOM SCP Basic Printing as a SCU DICOM IMAGE MANAGER is capable of being a SCU for printing DICOM images Study Management Services as a SCU DICOM IMAGE MANAGER is capable of being a SCU retrieving study management information from a HIS SCP Basic Worklist Management DICOM IMAGE MANAGER is capable of being a SCU for retrieving basic Worklist management information from a HIS SCP.

8 8 2.2 Functional Definitions of AEs 2.3 Sequencing of Real World Activities

9 9 3. AE Specifications 3.1 DICOM IMAGE MANAGER Specifications DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 Storage es as a SCU. Table 1 Storage es Ultrasound Multi-frame Image Storage (retired) Ultrasound Multi-frame Image Storage (1995) Ultrasound Image Storage (retired) Ultrasound Image Storage (1995) Secondary Capture Image Storage DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 Storage Commitment SOP Classes as a SCU. Table 2 Storage Commitment es Storage Commitment Push Model DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 Detached Management es as a SCU. Table 3 Detached Study Management es Detached Patient Management Detached Visit Management Detached Study Management Detached Results Management Detached Interpretation Management DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 Basic Worklist Management es as a SCU. Table 4 Basic Worklist Management es Modality Worklist IM Find DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 Print Management SOP Classes as a SCU. Table 5 Detached Print Management es Basic Greyscale Print Management Meta Basic Color Print Management Meta

10 10 Note: Support for Basic Greyscale Print Management Meta includes, by definition, support for Preformatted Greyscale Image, Basic Film Session, Basic Film Box, Basic Image Box, Printer. Support for Basic Color Print Management Meta includes, by definition, support for Preformatted Color Image, Basic Film Session, Basic Film Box, Basic Image Box, Printer. DICOM IMAGE MANAGER provides Standard Conformance to the following DICOM V3.0 interchange option Media Storage storage class. Table 6 Media Storage Application Profiles Supported APs Real World Activity Role STD-US-ID-MF-MOD128 Create MOD FSC Update MOD FSU Read MOD FSR Association Establishment Policies General DICOM IMAGE MANAGER contains a limitation of 100Kbytes for maximum PDU size Asynchronous Nature DICOM IMAGE MANAGER allows a single outstanding operation on any association. Therefore, DICOM IMAGE MANAGER does not support asynchronous operations window negotiation other than the default as specified by the DICOM specification Implementation Identifying Information DICOM IMAGE MANAGER will respond with the following implementation identifying parameters: Implementation Class UID Implementation Version Name DICOMIT + <Software version> The implementation version name policies are the following: product name DICOMIT followed by version of the product Association Initiation by Real World Activity Real World Activity - Storage Associated Real World Activity - Storage DICOM IMAGE MANAGER will issue a Storage request when a user of DICOM IMAGE MANAGER wishes to send a study of images to a remote DICOM SCP.

11 Presentation Contexts - Storage DICOM IMAGE MANAGER supports the following transfer syntaxes. Table 7 Transfer Syntaxes Transfer Syntax UID DICOM Implicit VR Little Endian Transfer Syntax DICOM Explicit VR Little Endian Transfer Syntax DICOM Lossy JPEG 8 Bit - JPEG Baseline (Process 1) DICOM RLE Lossless Table 8 Storage es Abstract Syntax Transfer Syntax Role Extended Negotiation Ultrasound Image Storage (retired) All from Table 7 SCP/SCU None Ultrasound Image Storage (1995) All from Table 7 SCP/SCU None Secondary Capture Image Storage All from Table 7 SCP/SCU None Ultrasound Multi-frame Image Storage All from Table 7 SCP/SCU None (retired) Ultrasound Multi-frame Image Storage (1995) All from Table 7 SCP/SCU None Real World Activity - Detached Study Management Associated Real World Activity - Detached Study Management DICOM IMAGE MANAGER will issue an N-Get request to retrieve information from a remote HIS SCP Presentation Context Table - Detached Study Management DICOM IMAGE MANAGER supports the transfer syntaxes listed. For an N-Get request, DICOM IMAGE MANAGER supports the following Presentation Contexts. Table 9 Transfer Syntaxes Transfer Syntax UID DICOM Implicit VR Little Endian Transfer Syntax DICOM Explicit VR Little Endian Transfer Syntax DICOM Explicit VR Big Endian Transfer Syntax

12 12 Table 10 Detached Study Management es Abstract Syntax Transfer Syntax Role Extended Negotiation Detached Patient Management All from Table 9 SCU None Detached Visit Management All from Table 9 SCU None Detached Study Management All from Table 9 SCU None Detached Results Management All from Table 9 SCU None Detached Interpretation Management All from Table 9 SCU None SOP Specific Conformance - Detached Study Management All DICOM attributes associated with the Detached Patient, Visit, Study, Results or Interpretation may be retrieved Real World Activity - Basic Worklist Management Associated Real World Activity - Basic Worklist Management DICOM IMAGE MANAGER will issue a C-Find request to retrieve information from a remote HIS SCP Presentation Context Table - Basic Worklist Management DICOM IMAGE MANAGER supports the transfer syntaxes listed in Table 10. For a C-Find request, DICOM IMAGE MANAGER supports the following Presentation Contexts. Table 11 Transfer Syntaxes Transfer Syntax UID DICOM Implicit VR Little Endian Transfer Syntax DICOM Explicit VR Little Endian Transfer Syntax DICOM Explicit VR Big Endian Transfer Syntax Table 12 Basic Worklist Management es Abstract Syntax Transfer Syntax Role Extended Negotiation Modality Worklist IM Find From Table 11 SCU None SOP Specific Conformance - Basic Worklist Management All DICOM attributes associated with the Modality Worklist may be retrieved.

13 Real World Activity - Printing Associated Real World Activity - Printing DICOM IMAGE MANAGER will issue Print Management requests to a SCP supporting the DICOM V3.0 Print services to produce hard copy representations of DICOM images Presentation Context Table - Printing DICOM IMAGE MANAGER supports the following transfer syntaxes. DICOM IMAGE MANAGER will accept any of the Presentation Contexts listed in Table 14 for Print Management. Table 13 Transfer Syntaxes Transfer Syntax UID DICOM Implicit VR Little Endian Transfer Syntax Table 14 Presentation Contexts Abstract Syntax Transfer Syntax Role Extended Negotiation Basic Film Session from Table 12 SCU None Basic Film Box from Table 12 SCU None Basic Greyscale Image Box from Table 12 SCU None Basic Color Image Box from Table 12 SCU None Printer from Table 12 SCU None SOP Specific Conformance - Printing DICOM IMAGE MANAGER provides standard conformance to the DICOM Printing Service Classes by supporting a number of distinct Service classes described below SOP Specific Conformance to Basic Film Session DICOM IMAGE MANAGER issues the following DIMSE-N commands for the Basic Film Session : N-Create and N-Action Print SOP Specific Conformance to Basic Film Box DICOM IMAGE MANAGER issues the following DIMSE-N commands for the Basic Film Session : N-Create, N-Delete, and N-Action Print. DICOM IMAGE MANAGER supports only STANDARD formats (STANDARD\1,1; STANDARD\2,2, etc.) with details dependent upon the resolution and capabilities of printer SOP Specific Conformance to Basic Greyscale Image Box DICOM IMAGE MANAGER issues the following DIMSE-N commands for the Basic Greyscale Image Box : N-Set.

14 SOP Specific Conformance to Printer DICOM IMAGE MANAGER issues the following DIMSE-N commands for the Printer : N-Set SOP Specific Conformance to Basic Greyscale Print Management Meta SOP Class The Meta SOP class is supported at negotiation but is not implemented as the individual SOP classes defined by the DICOM specification Real World Activity Removable Media A DICOM conformant Magneto-Optical Disk (MOD) is created when a non-conformant MOD is inserted into the DICOM IMAGE MANAGER and one or more DICOM exams are transferred to the MOD. When Exams are first transferred, their files are added to the MOD in DICOM Part 10 format and a valid DICOMDIR is created and saved to the MOD. The DICOM IMAGE MANAGER can add images to an existing DICOM conformant MOD and update its DICOMDIR. The DICOM IMAGE MANAGER can be a File-set Reader and a File-set Updater Presentation Contexts Removable media The following list applies when the DICOM IMAGE MANAGER is configured to support DICOM Removable Media: Table 15 Abstract and Transfer Syntaxes Information Object Definition Transfer Syntax Transfer Syntax UID DICOM Media Storage Explicit VR Little Endian Uncompressed Ultrasound Image Storage Explicit VR Little Endian Uncompressed RLE Lossless Image Compression JPEG Lossy, Baseline (Process 1) Ultrasound Multi-frame Image Storage Explicit VR Little Endian Uncompressed RLE Lossless Image Compression JPEG Lossy, Baseline (Process 1) Table 16 Defined Photometric Interpretation and Transfer Syntax Pairs Photometric Interpretation Value Transfer Syntax Transfer Syntax UID MONOCHROME2 Uncompressed RLE Lossless Image Compression JPEG Lossy RGB Uncompressed RLE Lossless Image Compression YBR_FULL Uncompressed RLE Lossless Image Compression YBR_FULL_422 Uncompressed JPEG Lossy

15 15 4. Communications Profiles DICOM IMAGE MANAGER provides DICOM V3.0 TCP/IP Network Communication Support as defined in Part 8 of the DICOM Standard. 4.1 TCP/IP Stack DICOM IMAGE MANAGER inherits its TCP/IP stack from the computer system upon which it executes Physical Media Support DICOM IMAGE MANAGER is indifferent to the physical medium over which TCP/IP executes; it inherits the medium from the computer system upon which it executes. 5. Configuration DICOM IMAGE MANAGER obtains configuration information from the following sources: Mapping from Application Entity Title to Presentation Address is provided by the database. Configuration table stores Application Entity Title, default PDU size, and preferred byte orders for the SOP classes that DICOM IMAGE MANAGER supports. 6. Support for Extended Character Sets DICOM IMAGE MANAGER is known to support the following character sets: ISO-IR 6 (default) Basic G0 Set ISO-IR 100 Latin Alphabet No SCU Behavior If the C-STORE operation is successful, the status changes to A in the status column on the patient list. If the C-STORE operation is unsuccessful, a NETWORK FAILURE message appears on the video monitor. The cancel button must then be pressed to continue normal operation. The status changes to W in the status column on the patient list. No extended negotiation is supported.

16 16 8. SCP Behavior A patient study can be retrieved for review on the host machine. The retrieval process issues a command to the DICOM archive to send the pre-determined study to the DICOM IMAGE MANAGER. The SCP agent on the DICOM IMAGE MANAGER accepts the images and inserts the information into the local database on the system.

17 17 9. DICOM fields in the DICOM image files Table 17 DICOM tags used in Storage Class. Field Name Number Contents Group Length 0x0002,0x0000 File Meta Information Version 0x0002,0x0001 Media Stored 0x0002,0x Media Stored SOP Instance UID 0x0002,0x Transfer Syntax UID 0x0002,0x Implementation Class UID 0x0002,0x Implementation Version Name 0x0002,0x0013 Source Application Entity Title 0x0002,0x0016 sop_class_uid 0x0008,0x sop_instance_uid 0x0008,0x study_date 0x0008,0x0020 study_time 0x0008,0x0030 modality 0x0008,0x0060 US Institute Name 0x0008,0x0080 patient_name 0x0010,0x0010 patient_id 0x0010,0x0020 other patient id 0x0010,0x1010 number generated by barcode reader Secondary Capture Device ID 0x0018,0x1010 Secondary Capture Manufacturer 0x0018,0x1018 study_instance_uid 0x0020,0x000d series_instanc_uid 0x0020,0x000e study_id 0x0020,0x0010 series number 0x0020,0x0011 image_number 0x0020,0x0013 samples_per_pixel 0x0028,0x or 1 photometric_interpretation 0x0028,0x0004 RGB or MONOCHROME2 planar_configuration 0x0028,0x or 0 rows 0x0028,0x0010 columns 0x0028,0x0011 pixel_spacing 0x0028,0x0030 1\1 bits_allocated 0x0028,0x bits_stored 0x0028,0x high_bit 0x0028,0x pixel_representation 0x0028,0x pixel data 0x7fe0,0x0010 Other fields can be incorporated by modifying the device s configuration file.