{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T16:04:27Z","timestamp":1784217867268,"version":"3.55.0"},"reference-count":11,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"vor","delay-in-days":14,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["aapm.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The study aimed to compare image\u2010quality metrics measured by two kV\u2010CBCT QA systems\u2014the QUART phantom with MaximQA and the Catphan phantom with ARTISCAN\u2014using standard clinical kV\u2010CBCT imaging protocols in a Varian TrueBeam IGRT setting, in line with AAPM TG\u2010142\/TG\u2010179 QA recommendations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>QA scans of the QUART and Catphan phantoms were acquired for image gently, head, thorax, pelvis and pelvis large imaging protocols. Key image quality metrics (noise, signal\u2010to\u2010noise ratio [SNR], uniformity, geometric distortion, Hounsfield unit [HU] constancy, contrast\u2010to\u2010noise ratio [CNR]) were measured using MaximQA and ARTISCAN software. Descriptive statistics and paired t\u2010tests (\u03b1\u00a0=\u00a00.01) evaluated differences between systems; TG\u2010142\/TG\u2010179 tolerances provided context.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The QUART\/MaximQA system consistently produced significantly lower measured image noise and higher measured SNR than Catphan\/ARTISCAN across most protocols (e.g., Pelvis Large: SNR 495.1\u00a0\u00b1\u00a040.7\u00a0vs 283.6\u00a0\u00b1\u00a031.5,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.01). Geometric accuracy was excellent in both systems (measured distances \u223c99.6%\u2013100% of nominal, no significant differences). QUART phantom HU values were closer to nominal for inserts; however, the Catphan Solid Water insert was interpreted in terms of material\u2010related HU behavior and stability rather than poorer HU accuracy (e.g., water\u2010equivalent insert: QUART \u2248 0 HU vs +60 for Catphan\/Solid Water,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.01). Uniformity differences were small (&lt;\u00a05 HU) and often not significant. CNR and low\u2010contrast detectability were reported as complementary QA indicators rather than directly equivalent metrics. Overall, both systems yielded image quality metrics within TG\u2010142\/TG\u2010179 baselines.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Both QUART\/MaximQA and Catphan\/ARTISCAN provide consistent kV\u2010CBCT QA metrics, but due to differences in phantom design, ROI definition, analysis software and setup conditions, their absolute values should not be considered directly interchangeable. The choice of phantom\/software may influence absolute QA values. We recommend using institution\u2010specific baselines per TG\u2010142\/TG\u2010179 and cite emerging literature on automated kV\u2010CBCT QA.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/acm2.70708","type":"journal-article","created":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T05:46:58Z","timestamp":1784180818000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Routine kV\u2010CBCT quality assurance in IGRT: Workflow\u2010based comparison of QUART\/MaximQA vs Catphan\/ARTISCAN"],"prefix":"10.1002","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1619-265X","authenticated-orcid":false,"given":"Karolina","family":"Sanocka","sequence":"first","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7452-3638","authenticated-orcid":false,"given":"Bartosz","family":"Pawa\u0142owski","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0744-5486","authenticated-orcid":false,"given":"Ewelina","family":"Nowak","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4971-4189","authenticated-orcid":false,"given":"Zuzanna","family":"Wr\u00f3blewicz","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3760-3182","authenticated-orcid":false,"given":"Urszula","family":"Sobocka\u2010Kurdyk","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"},{"name":"Faculty of Health Sciences Calisia University  Kalisz Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0644-0341","authenticated-orcid":false,"given":"Olga","family":"Jankowiak","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9119-8985","authenticated-orcid":false,"given":"Krzysztof","family":"Matuszewski","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maksymilian","family":"Wosicki","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-8527-7843","authenticated-orcid":false,"given":"Sebastian","family":"Gajny","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8894-7412","authenticated-orcid":false,"given":"Tomasz","family":"Piotrowski","sequence":"additional","affiliation":[{"name":"Department of Medical Physics Greater Poland Cancer Centre  Poznan Poland"},{"name":"Department of Electroradiology Poznan University of Medical Sciences  Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,15]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1118\/1.2900110"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1118\/1.3190392"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1118\/1.3690466"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mp.14992"},{"key":"e_1_2_11_6_1","unstructured":"Varian Medical Systems.TrueBeam hypersight quick start guide. 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