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MINUTES-tcon
DICOM Working Group Seven
(Radiation Therapy)
July 2, 2013
Members Present
Represented by
AAPM
ATC/ Wash. U. St. Louis
Brainlab
Mevion Med Systems
Moyers, Michael
Bruce Curran
Walter Bosch
Christof Schadt
Bruce Rakes
Michael Moyers
Members Absent
Voting Representative
Accuray
Elekta
Chris Pauer
Jim Percy
For Bob Murry
Hiroki Shirato
Michael Baumann
Mark Pepelea
Johannes Stahl
Uli Busch
Hokkaido University
Optivus Proton Therapy
Philips Medical Systems
Siemens Healthcare
Varian Medical Systems
Other Member Representatives, Observers, Others Present
Beunk, Harold
MacLean, Hakan
Siekmann, Sven
Vastagh, Stephen
Yan, Yulong
ICT
Raysearch
Brainlab
MITA
U of Texas SW Med School
1
Working Group Seven (Radiotherapy)
of the DICOM Standards Committee
July 2, 2013
Presiding Officer:
1.
Christof Schadt, Vice Chair
Opening
The Chair called the meeting to order at 10.00 USA Eastern Time. The Secretary called the roll. The
Agenda was approved. The antitrust rules were reviewed by the Secretary.
2.
Open Issues in Supplement 147 (Second Generation RT)
C. Schadt led the discussion of the Open Issues, referencing <Sup147_41_Draft2.doc>
Open issue
No
T-con
date
Responsible
members
Discussion
Date of
next
discussion
197
6/25
Everybody
Everybody to review the definitions of control points for
next t-con.
7/2
Began to rewrite definitions for control points. Inserted
text drafted in Sup 147 draft document. Will return to
definitions.
7/2
162
6/25
Busch, Curran
7/2
C. Schadt to present proposal to W. Bosch and B. Curran
7/2
CVol relations concept: along with additional questions
by B. Curran Item 162 was closed, as combinations are
possible.
Item closed
Minor revisions were made in the Draft Supplement.
203
Scope of Dosimetric Objectives. Reviewed new change to
address issue proposed by C. Schadt.
7/2
7/9
C. Schadt to work on conclusions and present new
version of draft to W. Bosch and B. Curran before next
TCon
Revisions were made in the Draft Supplement.
205
6/25
7/2
Busch, Schadt
Discussed draft by U. Busch. C. Schadt will follow up
comments by B. Curran and H. Beunk
7/2
Discussion: Concrete semantics of Treatment Phase along
definition of Treatment Phase Interval not clear. Issue
7/23
2
Working Group Seven (Radiotherapy)
of the DICOM Standards Committee
July 2, 2013
Open issue
No
T-con
date
Responsible
members
Date of
next
discussion
Discussion
tabled until U. Busch returns.
Two new issues were raised during the discussion:

In C.AA.2.6 Extenend Conceptual Volume Reference Macro it was discussed whether all
referenced segments shall be in the same Frame of Reference. This issue was discussed before
when this condition was introduced, as it opens the question how the correct Registration instance
can be retained. Still though, B. Curran raised the topic again. It was agreed to re-visit this issue
during the next face-to-face meeting.
Walter Bosch asked the question whether Anatomy Category Code Sequence and Anatomy
Property Type Code Sequence within RT Anatomic Prescription Sequence shall actually be used
at this location. This topic was also tabled and added to the list of Open Issues.

3.
Next Meetings & Tcons & Agendas
T-Cons


2013-07-09
2013-07-16
10.00-12.00 noon USA Eastern Time
10.00-12.00 noon USA Eastern Time
(W Bosch has set up webex for July 16. W. Bosch, B. Curran, and Colin Sims.)

2013-07-23
10.00-12.00 noon USA Eastern Time
Meeting:
2013-08-06 through -08 (Thursday-Saturday)
Indianapolis, IN, following AAPM
Unchanged: S. Vastagh will announce hotel for the meeting. Hotel is being searched among the
“AAPM Hotels” because it is assumed that attendees will be staying in one of the AAPM Hotels so in the
proximity of the WG-07 meeting venue.
3
Working Group Seven (Radiotherapy)
of the DICOM Standards Committee
July 2, 2013
AGENDAS FOR UPCOMING T-CONS
As a guideline the Open Issues will be discussed at the following dates:
Date
Open
Issues
Description
Assignment
July 9,
TCon
165
Diagrams for part 17
Chris
163
BLD vs. Applicator
Chris, Christof,
Bruce C.
203
Scope of Dosimetric
Constraints
Christof, Walter,
Bruce C.
174
Definitions for Effective Dose
Method
Walter, Bruce C.,
Colin
185
Descriptions for Codes in
SUP147041
Colin, Walter,
Bruce C.
191
Tag Assignment/Assertion
Macro
Uli
195
Examples for use of codes in
a trial
Walter
207
Definitions for Important
Terms
Chris, Uli
205
Treatment Phase Interval
U. Busch
209
Re-visit “Single FOR for
combinations of CVol”
B. Curran
210
Anatomy Category/Property
Type Code Sequence in RT
Anatomic Prescription
Sequence.
W. Bosch
-
Final Clean-up
July 16,
TCon
July 23,
TCon
August 810, Faceto-face
ACTION:
4.
Comment
Christof to wrap up results of 7/2 and present
proposal before 7/9 to Walter and Bruce.
only final reference to Supp 121 is missing
Clarify semantics and application of Treatment
Phase Interval
Members are asked to inform the Chair in case any delays are expected. This allows either
to re-arrange the schedule or to re-distribute the workload.
Adjournment
The meeting was adjourned at 12.00 USA Eastern Time.
Reported by:
Stephen Vastagh, Secretary
Reviewed by: CRS
4
Working Group Seven (Radiotherapy)
of the DICOM Standards Committee
July 2, 2013