Patterns of practice for adaptive and real-time radiation therapy (POP-ART RT) part II: offline and online plan adaption for interfractional changes

Jenny Bertholet, Gail Anastasi, David Noble, Arjan Bel, Ruud van Leeuwen, Toon Roggen, Michael Duchateau, Sara Pilskog, Cristina Garibaldi, Nina Tilly, Rafael García-Mollá, Jorge Bonaque (+3 others)
<span title="2020-06-21">2020</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/tp6msqxeyjdxpo4i4ouy6t32w4" style="color: black;">Radiotherapy and Oncology</a> </i> &nbsp;
The POP-ART RT study aims to determine to what extent and how intrafractional real-time respiratory motion management (RRMM), and plan adaptation for interfractional anatomical changes (ART) are used in clinical practice and to understand barriers to implementation. Here we report on part II: ART using more than one plan per target per treatment course. A questionnaire on the current practice of ART, wishes for expansion or implementation, and barriers to implementation was distributed
more &raquo; ... . Four types of ART were discriminated: daily online replanning, online plan library, protocolled offline replanning (all three based on a protocol), and ad-hoc offline replanning. The questionnaire was completed by 177 centres from 40 countries. ART was used by 61% of respondents (31% with protocol) for a median (range) of 3 (1-8) tumour sites. CBCT/MVCT was the main imaging modality except for online daily replanning (11 users) where 10 users used MR. Two thirds of respondents wished to implement ART for a new tumour site; 40% of these had plans to do it in the next 2 years. Human/material resources and technical limitations were the main barriers to further use and implementation. ART was used for a broad range of tumour sites, mainly with ad-hoc offline replanning and for a median of 3 tumour sites. There was a large interest in implementing ART for more tumour sites, mainly limited by human/material resources and technical limitations. Daily online replanning was primarily performed on MR-linacs.
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