Whats New in DICOM 2004 Robert Horn Agfa

What’s New in DICOM 2004 Robert Horn Agfa Healthcare Chair DICOM WG-06 (Base Standard) 16 February 2005 SPIE 2005

New in the 2004 DICOM Publication l New Image Objects l l New Structured Reports l l l Enhanced CT Ophthalmic Photography MPEG-2 and Visible Light (for endoscopy) OB-Gyn Procedure, Catheterization Lab Procedure Vascular Ultrasound Procedure, Echocardiography Intravascular Ultrasound, Quantitative Arteriography Breast Imaging Media Related l l USB and Flash Memory Media Creation Services 16 February 2005 SPIE 2005

New in DICOM 2004 (contd) l Other services Relevant Patient Information Query l Spatial Registration l Instance Availability Notification l l Used with other standards Configuration Management l Web Access to DICOM Objects l 16 February 2005 SPIE 2005

New Structured Reports l All of these reports are designed to capture precise measurements taken by equipment during various diagnostic procedures. Examples include: – Fetal bone measurements – Vascular flow and diameter measurements l Customized reports are defined for: – – – – 16 February 2005 OB-Gyn procedures Catheterization Lab Procedures Vascular Ultrasound Procedures Echocardiography Intravascular Ultrasound (IVUS) Quantitative Arteriography and Vasculography Breast Imaging SPIE 2005

Enhanced CT l CT has been enhanced in a manner very similar to that done for MR last year. l l Instead of one object per slice, use multi-frame images Support segmenting the study into more conveniently sized objects. Support flexible structuring of slice descriptions and slice parameters. There is a CT and MR taskforce l l To avoid compatibility problems in the field To simplify the upgrade process To help ensure that a hospital can upgrade all of their equipment in a synchronized manner To reduce development costs for vendors 16 February 2005 SPIE 2005

Ophthalmic Photography l Supports the many different forms of traditional ophthalmic photography, both still and moving, with and without contrast. – Fundus Photography, – Bio-microscopy (slit lamp) – External Photography l Added generic support for describing stereo pairs for stereo viewing. All ophthalmic objects are potentially stereo components. 16 February 2005 SPIE 2005

MPEG-2 and Visible Light Video The MPEG-2 standard for compressed video has been added as a transfer syntax. This syntax is presently limited to the broadcast television parameters, not other higher resolution configurations. l Suitable for replacing videotape capture from standard television cameras. l Defined a generic endoscopy object that supports this transfer syntax. This object is expected to be used as a functional replacement for the present video camera and video tape used during endoscopic procedures. l 16 February 2005 SPIE 2005

Media Related Additions l USB and Flash removable media Generic removable USB devices. l Compact Flash l SD Flash l l Media l Creation Services Similar to Print Services, but used to create CD’s and DVD’s. 16 February 2005 SPIE 2005

Relevant Patient Information Query l Simple Interface to HIS or other services for important patient information such as allergies. l Intended for use in modalities and other equipment that is already DICOM enabled. 16 February 2005 SPIE 2005

Spatial Registration l Defines spatial relationships between multiple DICOM image objects. E. g. : Mapping PET and CT images to a common coordinate system. l Mapping MR and CT images to a common coordinate system. l l Captures fiducial marker information: Location of fiducial marks on images l Matching of fiducial marks between images l 16 February 2005 SPIE 2005

Instance Availability Notification Used by PACS, RIS, and other systems to coordinate scheduling of activity with the transfer of image data between systems. l Recipient of images will notify other systems after image data transfer is complete. l Prior DICOM messages had a way for a modality to notify the managing system that it was sending images to the archive, but lacked a way for the archive to indicate that all the images had arrived. The result was excessive queries by workstations asking the archive whether images had arrived yet. l 16 February 2005 SPIE 2005

Configuration Management Defines proper use of DNS, DHCP, and NTP for automatic assignment of IP addresses and automatic maintenance of correct time. l Defines an LDAP information structure that describes the DICOM application configuration for a network. l This is different from the other extensions in that it is intended to improve administration and network operations. l l l Quicker installation, maintenance, and upgrades Easier reconfiguration of networks and facilities More potential for customer performed maintenance More potential for automatic and semi-automatic new equipment installation. Consistent time on images, reports, and user displays on all systems. 16 February 2005 SPIE 2005

Web Access to DICOM Objects This is a joint effort together with ISO and is issued as both part of DICOM and an ISO standard l A URL format is defined so that a web query from a web browser can be supported by a DICOM aware server. URL parameters indicate the desired patient, study, image, frame, and area of the frame that is to be returned as a JPEG image. l Similar URL parameters are defined for some other operations on DICOM information. l 16 February 2005 SPIE 2005

Work with other standards HL 7 CDA references from DICOM l DICOM SR extensions to ease transcoding to CDA l Encapsulation of PDF Objects l 16 February 2005 SPIE 2005

DICOM 2005 Conference l 26 -28 September, 2005 Budapest, Hungary – Tutorials – Plans and Status of current work – Vision for the future l http: //medical. nema. org/dicom/DCW-2005 16 February 2005 SPIE 2005

Next Presentations l Security Extensions l Display Extensions l Standard API for plugins, etc. 16 February 2005 SPIE 2005