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We are happy to announce, that the 8th MR in RT Symposium in Heidelberg, which had to be cancelled in 2020, is now rescheduled for 2021 as virtual event. It is hosted by  the German Cancer Research Center (DKFZ) - the biggest German biomedical research institute – and will take plase from Monday 19th to Wednesday 21st of April 2021.

The fast technological development and the rapid clinical implementation of MRI in radiation therapy applications is currently one of the most exciting as well as most challenging developments in radiation oncology. With this science symposium we would not only like to bring together specialists from all involved disciplines, but also to foster a discussion about the scientific direction of the field. The latest developments in physics and technology of MR-guided radiotherapy, clinical directions and results will be presented.

Prior to the symposium (April 18th, 2021) we are preparing a Virtual Satellite Symposium for a limited number of attendees to have a more in-depth look into some aspects of clinical procedures for QA and dosimetry at an MR-Linac.

We are well aware, that hosting such a virtual event in 2021 might still be difficult. Nevertheless, we will try to organize a fruitful and relaxed virtual event to build new and reinforce existing cooperation among the virtual attendees. 

We are looking forward to seeing you online in 2021!


9th MR in RT SYMPOSIUM 2023

The next 9th MR in RT Symposium will take place on February 6-8, 2023 in Los Angeles, USA. Further information can be found on


We would like to thank all speakers, chairs, our sponsors and the DFG for such an interesting event with more than 350 registered participants from around the glode. It was really a pleasre for us as local organizing team to host our symposia with our partners for such large audience.

Thank you and see you soon!


We are very happy to announce that selected contributions of our 08th MRinRT Symposium (originally scheduled for 2020) have been accepted and published as "Special Issue" of "Physics and Imaging in Radiation Oncology" (phiRO). Read on here.

Scientific Committee

  • James Balter, University of Michigan, USA
  • Caroline Chung, University of Texas, MD Anderson Cancer Center, USA
  • Jürgen Debus, University Hospital Heidelberg, Germany
  • Stefan Dorsch, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Gino Fallone, University of Alberta, Canada
  • Clarissa Gillmann, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Matthias Guckenberger, University Hospital Zurich, Switzerland
  • Lauren Henke, Washington University School of Medicine, USA
  • Juliane Hörner-Rieber, University Hospital Heidelberg, Germany
  • Oliver Jäkel, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • David Jaffray, University of Texas, MD Anderson Cancer Center, USA
  • Christian Karger German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Paul Keall, University of Sydney, Australia
  • Sebastian Klüter, University Hospital Heidelberg, Germany
  • Stine Korreman, Aarhus University Hospital, Denmark
  • Mark Ladd, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Jan Lagendijk, University Medical Center Utrecht (UMC), The Netherlands
  • Gary Liney, Ingham Institute, Applied Medical Research, Liverpool, Australia
  • Tufve Nyholm, Umeå University, Sweden
  • Uwe Oelfke, The Institute of Cancer Research, London, UK
  • Parag Parikh, Henry Ford Health System, Michigan, USA
  • Marielle Phillipens, University Medical Center Utrecht (UMC), Utrecht, The Netherlands
  • Bas Raaymakers, University Medical Center Utrecht (UMC), Utrecht, The Netherlands
  • Heinz-Peter Schlemmer, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Joao Seco, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Ben Slotman, University Medical Center Amsterdam (UMC), Amsterdam, The Netherlands
  • Daniela Thorwarth, University Hospital Tübingen, Germany
  • Esther Troost, University Hospital Dresden, Germany
  • Vincenzo Valentini, Università Cattolica del Sacro Cuore, Roma, Italy
  • Uulke van der Heide, Netherlands Cancer Institute, The Netherlands
  • Niklas Wahl, German Cancer Research Center (DKFZ), Heidelberg, Germany
  • Daniel Zips, University Hospital Tübingen, Germany

Scientific Program and Abstract Booklet

We are very happy to publish the final program of our symposium. It includes one keynote and one highlight talk as well as two young investigator sessions. Furthermore, 12 scientific sessions (live) and 8 live poster sessions are part of the program and are suplemented by further recordings and e-posters

The majority of our talks on the main stage are going to be recorded. Participants can watch the talks afterwards on our virtual platform whenever they have time.

Please note: all times indicated are given as Central European Summer Time (CEST). Please carefully check your time difference when attending our virtual symposium.

Furthermore, our abstract booklet is online as well.

Satellite Symposium

MR-guided radiotherapy (MRgRT) has evolved from technical development to clinical application. First experiences with existing MR-Linac devices clearly confirm the clinical potential, however, implementation of adaptive MRgRT still provides many practical challenges ranging from dosimetry under reference and non-reference conditions, installation and commissioning of MR-Linac devices as well as a lack of methods for efficient machine- and online QA. Effective realization of these measurement techniques will depend on the device providing different vendor-specific features and tools. Presently, there is a rapid development of new metrologies accompanied by an urgent need to spread the knowledge on these methods among the community. For reference dosimetry, metrology has been developed within a project funded by the European Metrology Programme for Innovation and Research (EMPIR) and first results were presented at a previous satellite symposium at the MRinRT conference in 2017. Meanwhile, developments have advanced and the present symposium aims at following up on the developments in dosimetry, QA and dedicated end-to-end tests reflecting the complexity of real treatment workflows.

The symposium is intended for medical physicists and other professionals, who employ MRgRT in clinical practice, plan to start an MRgRT- program or are already involved in these exciting new developments. With this satellite symposium, we hope to raise interest and to stimulate fruitful discussions among colleagues.

Organization: Christian Karger, Sebastian Klüter, Stefan Dorsch

Please note: all times indicated are given as Central European Summer Time (CEST). Please carefully check your time difference when attending our virtual satellite symposium.

Dates and Deadlines

Our Virtual Satellite Symposium is scheduled for April 18th 2021. The Virtual 8th MR in RT Symposium 2021 will take place from April 19th to 21st 2021.

Our deadlines at a glance:

Registration for Virtual Satellite Symposium and the Virtual 8th MR in RT Symposium 2021:

  • Early Bird Registration opens on Sept. 22nd 2020.
  • Deadline for Free Conference Participation closes on Feb. 15th 2021.
  • NEW EXTENDED Early Bird Registration closes on March 22nd 2021.
  • NEW Regular Registration closes on April 16th 2021, 6pm (CEST). 
  • NEW Registration for students is open from Sept. 15th to April 16th 2021 (CEST).


  • Call for abstracts opens on Sept. 22nd 2020.
  • NEW EXTENDED abstract deadline closes on Dec. 14th 2020, 11:55pm.
  • Confirmation of abstracts is at the end of January 2021.
  • 1st program draft is available at the beginning of March 2021.
  • Final program is available mid of March 2021.

Fees and Free Conference Participations

Registration Area at Communication Center
© DKFZ/J. Jung

Our fees at a glance:

Online Participation:

  • Early Bird Registration for Online Participation of Symposium: €150
  • Regular Registration for Online Participation of Symposium: €180
  • Registration for Students (Bachelor's, Master's and PhD students: certificate required): €150
  • Registration for Online Participation of Satellite Symposium: €50

EXTENDED DEADLINE for a free conference participation for students

Depending on our final budget there are a few free conference participations available to students (Bachelor's, Master's and PhD students) for our virtual symposia.

Please submit your application documents (Motivation Letter, tabular CV, including references (if applicable) and one recommendation letter) as ONE PDF by e-mail to until February 15th 2021. Decision will be made end of February/beginning of March 2021. Once accepted, please register as student for the virtual symposium as well as for the virtual satellite symposium.

Abstracts and Young Investigator

Poster Area and Main Entrance of Communication Center
© DKFZ/D. Anders

Abstract submission is closed. Thank you very much for your contributions.

We are glad to announce two "Young Investigator Sessions" for oral presentations. Candidates who have already been selected for the Young Investigator Session in 2020 are asked to confirm their participation in 2021 by e-mail to

Candidates of 2021 will be pre-selected by the Scientific Committee. If you would like to apply for the "Young Investigator 2021" please select the option when submitting your abstract.

Candidates should be registered students on Bachelor's, Master's and PhD level as well as Post-Docs with a PhD degree awarded after May 2020.

2x First place: €1000

2x Second place: €500

2x Third place: €250


The Virtual Satellite Symposium and the Virtual 8th MR in RT Symposium will take place online only.

Sponsorship and Exhibition

The symposium is compliant with the MedTech Europe Code of Ethical Business Practice:

Our Virtual Sponsoring Options are now online here:

Free Online Seminars hosted by Sponsors

We are delighted to announce free online seminars hosted by our sponsors. Everyone who is interested can attend the seminars for free, even if you are not registered for the symposium.

Disclaimer: the online seminars are part of the Platinum and Gold Sponsoring Options and they are hosted by the sponsor indicated. The DKFZ is not the host of these virtual seminars and therefore, it is not responsible for the content and topics presented during the virtual seminars.

Dates and times:

Date: April 07th 2021, 11am CEST

Topic: Artificial Intelligence: the missing link in MR-guided radiotherapy?

Host: TheraPanacea



Date: April 08th 2021, 4pm CEST

Topic: Multi-institutional analysis of dosimetric and positioning accuracy of pelvis sCT for MR-only RT planning




Date: April 14th 2021, 1pm CEST

Topic: MRI-guided online adaptive radiotherapy for gastro-intestinal tumors on the Elekta Unity MR-Linac

Host: Elekta



Date: April 15th 2021, 12pm CEST

Topic: Qfix Encompass™ 15-Channel Head Coil on Siemens 3T MR Scanner – Dr. James Balter shares his experience

Host: Qfix



Platinum Sponsors:

Elekta Instrument AB
P.O. Box 7593
SE 103 93 Stockholm, Sweden

RaySearch Laboratories
P.O. Box 3297
SE-103 65 Stockholm, Sweden

Gold Sponsors:

Philips Medical Systems MR Finland, Philips OY
Äyritie 4
FI-01511 Vantaa, Finland

440 Church Road
Avondale, PA 19311, USA

Siemens Healthcare GmbH
Henkestr. 127
DE-91052 Erlangen, Germany

Pépinière Paris Santé Cochin
29 rue du Faubourg Saint-Jacques
FR-75014 Paris, France

Silver Sponsors:

LAP GmbH Laser Applikationen
Zeppelinstr. 23
DE-21337 Lüneburg, Germany

Varian Medical Systems International AG
Hinterbergstrasse 14
CH-6312 Steinhausen, Switzerland

2 Thermo Fisher Way
Oakwood Village, OH 44146, USA

Bronze Sponsors:

Chemin du Cyclotron 3
BE-1348 Louvain-la-Neuve, Belgium

ModusQA Medical Devices
1570 North Routledge Park
London, Ontario N6H 5L6, Canada

PTW Freiburg GmbH
Lörracher Str. 7
DE-79115 Freiburg, Germany

Sun Nuclear Corporation
3275 Suntree Blvd
Melbourne, FL 32940, USA

Contact and Organization

Anna Moshanina, Marcel Schäfer, Dr. Simone Barthold-Beß

We are happy to help with any questions you may have. Please feel free to contact us at  or give us a call at 0049-6221/42-3481.

Local Organizing Team

Dr. Simone Barthold-Beß
Anna Moshanina
Marcel Schäfer

German Cancer Research Center (DKFZ)
Foundation under Public Law
Im Neuenheimer Feld 223
DE-69120 Heidelberg

The symposium is kindly supported by:

Accredited by:

Landesärztekammer Baden-Württemberg (LÄK)

The Virtual Satellite Symposium on April 18th 2021 is accepted with 6 points ("Fortbildungspunkte") in categorie B.

The Virtual 8th MRinRT Symposium from April 19th - 21st 2021 is accepted with 15 points ("Fortbildungspunkte") in category B.

All physicians from Germany are asked to add their EFN number to your account of our registration portal. After our event, everyone with an EFN number will additonally get a LÄK certificate by mail.

Endorsed by:

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