Abstract Book

S184

ESTRO 37

communicate and having a clear focus are just as important. In this talk, I will share some essential grammatical techniques and conceptual methods that will improve your chances of success. SP-0360 Our 3 new journals, update after 1 year: ctRO P. Blanchard 1 , D. Zips 2 1 Institut Gustave Roussy, Radiation Oncology, Villejuif, France 2 University of Tuebingen, Radiation Oncology, Tuebingen, Germany Abstract text The first issue of Clinical and Translational Radiation Oncology (ctRO), the newest clinical journal within the ESTRO family, was published in December 2016. It contained an editorial by the editors in chief, and five original articles. Since then, six additional volumes have been compiled and published, representing a total of 52 additional articles and leading to 11,797 articles being downloaded in the first three quarters of 2017. The last published volume contained 14 articles dealing with different aspects of radiation oncology and various tumor sites. Many more articles are being received, reviewed and subsequently published. One of the goals of ctRO, along with its open-access policy, was to have a timely peer-review process and rapid publication, to allow fast and broad dissemination of science. The mean turnaround time between submission and first editorial decision based on the reviewers’ recommendations for research articles is currently close to three weeks. After receiving the revised version, the final decision is reached in less than two days. This shows the efficiency of the reviewing process in place and the dedication of our excellent reviewer community. It is now time to reflect on the first year of ctRO, in terms of achievements, but also and more importantly with respect to the direction we want the journal to follow. SP-0361 Our 3 new journals, update after 1 year: phiRO L. Muren Aarhus University Hospital, Aarhus, Denmark SP-0362 Our 3 new journals, update after 1 year: tipsRO Writing for medical publication: increasing your impact S. Faithfull 1 1 University of Surrey, Faculty of Health and Medical Sciences, Guildford, United Kingdom Medical publishing is about communication of research with the aim of changing practice or informing future medical research. Writing for impact is essential to good scientific communication which increases citations and the reading of your paper. Impact occurs when the research generates benefits for health care; radiotherapy treatments, health services or provide economic benefits. Knowledge is intertwined with persuasion and how you write influences impact. Researchers are increasingly expected to be accountable for how their research is used therefore publication is not the end goal, but how that publication informs and changes radiotherapy practice. This presentation explores how best to increase the impact of your writing for the TipsRO journal through use of techniques that increase readership, improve search terms but also help the reader understand how to take forward your ideas. Examples will be presented from the journal to demonstrate how to improve writing for the journal. Abstract not received Abstract text

Symposium: Advanced image acquisition for planning

SP-0356 4D image acquisition: 4D-MRI based evaluation of moving lung tumour target volumes M. McGarry Cork University Hospital, Cork, Ireland

Abstract not received

SP-0357 Dose precision in MR-only planning workflow R.L. Christiansen 1 1 Odense University Hospital, Radiofysisk Laboratorium, Odense, Denmark Abstract text Current state of the art radiotherapy planning for most indications in the pelvic area consists of a CT scan for dose calculation supplemented by an MRI scan. This provides the soft tissue contrast needed for accurate target definition and often organs at risk (OAR). In many cases additional physiological information through diffusion weighted imaging (DWI) is also used. Numerous approaches to generate an electron density (ED) map, a so-called pseudo CT, from MR data have been undertaken, and some are now commercially available. Thus, an MR only planning workflow will be feasible, eliminating the registration error, as well as saving time and effort. Implementing an MR only planning workflow requires validation of the precision of the dose calculation. When based on a pseudo CT, this precision is affected by geometric accuracy of the underlying MRI as well as the assignment of Hounsfield Units within the pseudo CT. Furthermore, the pseudo CT and DRRs derived from it may not present itself as a standard CT for position verification at treatment. Features such as internal air pockets or implanted fiducials for setup verification may not be visualized in a pseudo CT. A verification study of dosimetric precision of a commercially available pseudo CT product (MRCAT, Philips, Helsinki, Finland), aimed specifically at prostate cancer treatment, was conducted in our clinic. The study included 30 patients and showed good agreement with standard CT calculations in terms of gamma index pass rates. Feasibility of the workflow was proven by patient treatment upon modification of the pseudo CT to include intra-prostatic fiducial markers used for cone beam CT position verification. SP-0358 MRI guided radiotherapy including online treatment planning C. Nomden UMC, Utrecht, the Netherlands

Abstract not received

Symposium: Medical writing and publishing

SP-0359 Effective medical writing – golden tips for young scientists P. Leventhal 1 1 Medical Writing European Medical Writers Association, Editor in Chief, Lyon, France Abstract text Although you may be a scientific expert and may be able to fulfill a journal's basic requirements for preparing a manuscript, this is not enough to get them published. To be publishable, a manuscript needs to be understandable, interesting, and convincing. Writing clearly and concisely in English is a big part of this, but understanding how to