{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T09:40:48Z","timestamp":1792402848817,"version":"4.4.0"},"reference-count":20,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T00:00:00Z","timestamp":1789689600000},"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":[[2026,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Respiratory motion introduces significant geometric uncertainty in Stereotactic Body Radiotherapy (SBRT) for thoracic and abdominal tumors. Deep Inspiration Breath\u2010Hold (DIBH) mitigates this, but the surface signal alone may not reflect internal target position, supporting the need for real\u2010time internal\u2010anatomy verification during delivery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>\u00a0To commission a Surface\u2010Guided Radiation Therapy (SGRT) system and validate an integrated SGRT + Image\u2010Guided Radiation Therapy (IGRT) + triggered kV imaging (SITI) workflow for DIBH SBRT.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials &amp; Methods<\/jats:title>\n                    <jats:p>The LAP LUNA 3D SGRT system was commissioned per AAPM TG\u2010302 using phantom\u2010based assessment of static and dynamic localization accuracy, reproducibility, and latency. An end\u2010to\u2010end test using a dynamic phantom validated the SITI workflow. Point dose was measured with an ion chamber under four scenarios: SGRT\u2010only delivery, full SITI delivery, and SITI with induced 1 and 2\u00a0mm uncorrected 3D shifts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Static localization accuracy was better than 0.5\u00a0mm \/ 0.3\u00b0, with reproducibility within 0.2\u00a0mm \/ 0.1\u00b0. Dynamic testing confirmed sub\u2010millimeter spatial accuracy and a 31.6\u00a0ms latency, well below the AAPM TG\u2010302 100\u00a0ms tolerance. The 1 and 2\u00a0mm uncorrected shifts produced point\u2010dose reductions of 0.9% and 2.2% relative to the SITI reference, consistent with the \u223c1%\/mm local dose gradient. Both shifts were clearly visualized on triggered kV images, confirming detection of sub\u2010tolerance residual displacements undetected by surface guidance alone.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The LAP LUNA 3D system meets the technical requirements for SBRT. The SITI workflow is technically feasible and provides real\u2010time visualization of internal target position during delivery, offering a robust motion\u2010management strategy for DIBH SBRT of mobile thoracic and abdominal targets.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/acm2.70812","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T16:35:15Z","timestamp":1789749315000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Commissioning and end\u2010to\u2010end validation of a combined surface\u2010guided and triggered kV imaging workflow for breath\u2010hold SBRT on a Varian TrueBeam"],"prefix":"10.1002","volume":"27","author":[{"given":"Offormata E.","family":"Osunkwor","sequence":"first","affiliation":[{"name":"John Theurer Cancer Center Hackensack University Medical Center  Hackensack New Jersey USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alois","family":"Ndlovu","sequence":"additional","affiliation":[{"name":"John Theurer Cancer Center Hackensack University Medical Center  Hackensack New Jersey USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roland F.","family":"Teboh","sequence":"additional","affiliation":[{"name":"John Theurer Cancer Center Hackensack University Medical Center  Hackensack New Jersey 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