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MINUTES-t-con
DICOM WORKING GROUP SIX
(Base Standard)
July 27, 2015
Members Present
Represented by
ACR
Agfa Healthcare
Philips Healthcare
Philips Healthcare
Siemens Healthcare GmbH
Toshiba MRI USA
James Philbin
Robert Horn
Wim Corbijn
WG-11 Joe Luszcz
Bjorn Nolte
Kevin O’Donnell
Members Not Present
Voting Representative
Carl Zeiss Medical Software
GE Healthcare
JIRA
Merge Healthcare
Konica Minolta Med. Imaging
PixelMed
Karl-Heinz Fleischer
Harry Solomon
Yukio Ito
Ronald Cowan
Michael Laconti
David Clunie
Alternate Voting Representatives,
Observers, Others Present
Affiliation
Kowalczyk Luiza
Elmar Seeberger
Andreas Klingler
DICOM Secretariat/MITA (PT)
WG-11/ Siemens Healthcare GmbH
WG-11 /Siemens Healthcare GmbH
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee CP’s
July 27, 2015
Stephen Vastagh
DICOM Secretariat/MITA
Presiding Officer:
Robert Horn, Chair
1. Opening and Administrative
The Chair called the meeting to order at 10.00 ET on June 27, 2015. The Agenda was approved.
The Secretary reviewed the antitrust rules. The purpose of the t-con was to review Supplement 156,
Final Text.
2. Supplement 156 – Planar MPR Volumetric Presentation State {WI 2008-04-C}
This was a continuation of the review and approval of the Final Text; the Supplement passed Letter Ballot
already.
J. Luszcz presented the document posted in the meeting folder: <
sup156_PlanarMPR_20150602_FinalTextCandidate.docx> and discussed the changes since the last t-con.


At the last tcon of WG-06 Harry Solomon asked for separate pipeline drawings for each SOP Class
(grayscale Fig. X.2-1.-P-value pipeline, and composite Fig. X.2-2 - line 725.) J. Luszcz reviewed
the SOP Class constraints (Pt 4 Section B.5.1.x).
After the last WG-06 t-con WG-11 held another t-con and made some additional changes. J.
Luszcz reviewed these changes:
o Discussed the last few two parts of the document - PS 3.17 Y.5 which provided informative
examples of the use of the Weighting Table and Y.6 that provided example
classification/compositing pipeline configurations, both referring to aspects of the
Volumetric Presentation State Display Module. Wim had also suggested some clarifications
to the use of Weighting Transfer Function Sequence (0070,x806) in several examples in PS
3.17 Y.3 by adding a placeholder row in the example tables for the SQ items that were
omitted for simplicity.
o Weighting table..use the strongest signal in output table instead of mixing the signals.
Figure Y.3.7-1
o Changed ‘alpha’ to’ magnitude’ in Table &.3.7-4
o Section Y – made use of Alpha-1 consistent
o Y.5.4 (line 615) is seen by WG-06 for the first time at this t-con (weighting LUTs for
threshold compositing).
o Y.5.5 ‘Noise elimination compositing’ was reviewed-allows vendors choosing algorithms.
Members suggested changing the title to ‘Background noise masking’ or deleting it. It was
deleted.
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee CP’s
July 27, 2015
o Figures Y.6.1-Y.6.6 are generic illustrations, not connected to any specific use case.
Suggested to revise Y.6-1 to show that the Alpha is going nowhere. It was discussed that
these are very useful. Joe reviewed that these were first in Pt3, moved to Pt4 and finally Pt
17.
Some revisions were made during the discussion. The revised document was posted as <
sup156_PlanarMPR_20150727_FinalTextCandidate.docx>.
NEXT STEPS:
The Chair noted that at the September WG-06 meeting a few minutes will be taken
from the Administration item on Monday to vote on this Final Text.
4. New Business
There was no new business discussed.
5. Future Meetings
In-Person Meetings

Sept. 14-18, 2015, Arlington, MITA HQ, VA, USA

Nov. 9-13, 2015, Arlington, MITA HQ, VA, USA

Jan. 18-22, 2016, Arlington, MITA HQ, VA, USA

March 7-11, 2016, Arlington, MITA HQ, VA, USA

June 6-10, 2016, hosted in Germany or in Iceland
6. Adjournment
The meeting was adjourned at 11.30.
Submitted by Stephen Vastagh, Secretary
Reviewed by Clark Silcox, Legal Counsel
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee CP’s
July 27, 2015