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Title: | Adoption of respiratory motion management in radiation therapy. | Austin Authors: | Burton, Alex;Beveridge, Sabeena;Hardcastle, Nicholas;Lye, Jessica ;Sanagou, Masoumeh;Franich, Rick | Affiliation: | Diagnostic Imaging, Australian Radiation Protection and Nuclear Safety Agency (ARPANSA), Yallambie,Australia Centre for Medical Radiation Physics, University of Wollongong, Wollongong,Australia Olivia Newton-John Cancer Wellness and Research Centre Australian Clinical Dosimetry Service (ACDS), Australian Radiation Protection and Nuclear Safety Agency (ARPANSA), Melbourne,Australia School of Science, RMIT University, Melbourne,Australia Peter MacCallum Cancer Centre, Melbourne,Australia |
Issue Date: | Oct-2022 | Date: | 2022 | Publication information: | Physics and Imaging in Radiation Oncology 2022; 24: 21-29 | Abstract: | A survey on the patterns of practice of respiratory motion management (MM) was distributed to 111 radiation therapy facilities to inform the development of an end-to-end dosimetry audit including respiratory motion. The survey (distributed via REDCap) asked facilities to provide information specific to the combinations of MM techniques (breath-hold gating - BHG, internal target volume - ITV, free-breathing gating - FBG, mid-ventilation - MidV, tumour tracking - TT), sites treated (thorax, upper abdomen, lower abdomen), and fractionation regimes (conventional, stereotactic ablative body radiation therapy - SABR) used in their clinic. The survey was completed by 78% of facilities, with 98% of respondents indicating that they used at least one form of MM. The ITV approach was common to all MM-users, used for thoracic treatments by 89% of respondents, and upper and lower abdominal treatments by 38%. BHG was the next most prevalent (41% of MM users), with applications in upper abdominal and thoracic treatment sites (28% vs 25% respectively), but minimal use in the lower abdomen (9%). FBG and TT were utilised sparingly (17%, 7% respectively), and MidV was not selected at all. Two distinct treatment workflows (including use of motion limitation, imaging used for motion assessment, dose calculation, and image guidance procedures) were identified for the ITV and BHG MM techniques, to form the basis of the initial audit. Thoracic SABR with the ITV approach was common to nearly all respondents, while upper abdominal SABR using BHG stood out as more technically challenging. Other MM techniques were sparsely used, but may be considered for future audit development. | URI: | https://ahro.austin.org.au/austinjspui/handle/1/30937 | DOI: | 10.1016/j.phro.2022.09.003 | Journal: | Physics and Imaging in Radiation Oncology | PubMed URL: | 36148153 | Type: | Journal Article | Subjects: | BHG, Breath-hold gating Dosimetry audit FBG, Free-breathing gating ITV, Internal target volume Intrafraction motion MM, Motion management MidV, Mid-ventilation Motion management Respiratory motion Survey TT, Tumour tracking |
Appears in Collections: | Journal articles |
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