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Phys. Eng. Express"],"published-print":{"date-parts":[[2025,9,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>\n                  <jats:italic>Objective<\/jats:italic>. This study aims to develop canine radiotherapy phantoms and a dosimetry protocol for synchrotron microbeam radiation therapy (MRT). <jats:italic>Approach<\/jats:italic>. Two canine head phantoms were designed based on computed tomography (CT) image sets obtained from veterinary patients. Polylactic acid polymer and calcium sulfate hemihydrate plaster were used to radiologically simulate soft tissue and bone. Fused deposition modeling 3D printing was used to fabricate the external geometry of the head phantoms. CT images of the phantoms were acquired to measure its CT number profile and to create treatment plans. Using a 4 Tesla superconducting multipole wiggler field and in vacuo filters, synchrotron beam was delivered as broad-beam and as microbeam arrays at the imaging and medical beamline of the Australian Synchrotron. The Monte Carlo simulated dose using a hybrid Eclipse<jats:sup>TM<\/jats:sup> treatment planning system (TPS) was compared to the experimental measurements. <jats:italic>Main results<\/jats:italic>. The head phantoms offer a realistic three-dimensional canine head geometry and CT numbers mimicking soft tissue and bone. Various types of detectors and biological samples can be accomodated, using a series of customizable rectangular inserts. The measured accumulated doses for microbeam irradiation were within +\/\u22122% of the TPS doses, while all the other measured doses were within +\/\u221210% agreement with the TPS doses. The TPS, phantom positioning, and detector uncertainties contributed to the measurement discrepancies. <jats:italic>Significance and conclusions<\/jats:italic>. The 3D printed canine phantoms were shown to be useful dosimetry tool for synchrotron MRT end-to-end quality assurance. The development of canine phantoms and dosimetry methodology are critical for the treatment plan optimization required in future veterinary studies. Both the phantoms and the dosimetry protocol are valuable tools in future veterinary MRT trials.<\/jats:p>","DOI":"10.1088\/2057-1976\/adff8b","type":"journal-article","created":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T22:47:49Z","timestamp":1756334869000},"page":"055033","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["A canine head phantom for quality assurance in multiport microbeam radiation therapy: animal phantom fabrication and dosimetry protocol"],"prefix":"10.1088","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8052-0011","authenticated-orcid":false,"given":"John Paul O","family":"Bustillo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincent","family":"de Rover","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4704-2104","authenticated-orcid":false,"given":"Elette E M","family":"Engels","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9037-770X","authenticated-orcid":false,"given":"James","family":"Cayley","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew","family":"Cameron","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sam","family":"Long","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Carolan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-1436-6592","authenticated-orcid":false,"given":"Bernd","family":"Frerker","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2406-9972","authenticated-orcid":false,"given":"Michael L F","family":"Lerch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1273-0065","authenticated-orcid":false,"given":"Elisabeth","family":"Sch\u00fcltke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"266","published-online":{"date-parts":[[2025,9,10]]},"reference":[{"key":"bpexadff8bbib1","doi-asserted-by":"publisher","first-page":"967","DOI":"10.1016\/j.ijrobp.2022.04.022","type":"journal-article","article-title":"Toward neuro-oncologic clinical trials of high-dose-rate synchrotron microbeam radiation therapy: first treatment of a spontaneous canine brain tumor","volume":"113","author":"Adam","year":"2022","journal-title":"International Journal of Radiation Oncology, Biology, Physics"},{"key":"bpexadff8bbib2","doi-asserted-by":"publisher","first-page":"243\u2013257.e7","DOI":"10.1016\/j.ccell.2020.01.004","type":"journal-article","article-title":"Comparative molecular life history of spontaneous canine and human gliomas","volume":"37","author":"Amin","year":"2020","journal-title":"Cancer Cell"},{"key":"bpexadff8bbib3","doi-asserted-by":"publisher","first-page":"3223","DOI":"10.1088\/0031-9155\/57\/10\/3223","type":"journal-article","article-title":"Evaluation of dose-volume metrics for microbeam radiation therapy dose distributions in head phantoms of various sizes using Monte Carlo simulations","volume":"57","author":"Anderson","year":"2012","journal-title":"Phys. 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