{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T18:26:28Z","timestamp":1771957588234,"version":"3.50.1"},"reference-count":21,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2013,11,4]],"date-time":"2013-11-04T00:00:00Z","timestamp":1383523200000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2013,11]]},"abstract":"<jats:p>Treatment of the wrong body part due to incorrect setup is among the leading types of errors in radiotherapy. The purpose of this paper is to report an efficient automatic patient safety system (PSS) to prevent gross setup errors. The system consists of a pair of charge\u2010coupled device (CCD) cameras mounted in treatment room, a single infrared reflective marker (IRRM) affixed on patient or immobilization device, and a set of in\u2010house developed software. Patients are CT scanned with a CT BB placed over their surface close to intended treatment site. Coordinates of the CT BB relative to treatment isocenter are used as reference for tracking. The CT BB is replaced with an IRRM before treatment starts. PSS evaluates setup accuracy by comparing real\u2010time IRRM position with reference position. To automate system workflow, PSS synchronizes with the record\u2010and\u2010verify (R&amp;V) system in real time and automatically loads in reference data for patient under treatment. Special IRRMs, which can permanently stick to patient face mask or body mold throughout the course of treatment, were designed to minimize therapist's workload. Accuracy of the system was examined on an anthropomorphic phantom with a designed end\u2010to\u2010end test. Its performance was also evaluated on head and neck as well as abdominalpelvic patients using cone\u2010beam CT (CBCT) as standard. The PSS system achieved a seamless clinic workflow by synchronizing with the R&amp;V system. By permanently mounting specially designed IRRMs on patient immobilization devices, therapist intervention is eliminated or minimized. Overall results showed that the PSS system has sufficient accuracy to catch gross setup errors greater than 1 cm in real time. An efficient automatic PSS with sufficient accuracy has been developed to prevent gross setup errors in radiotherapy. The system can be applied to all treatment sites for independent positioning verification. It can be an ideal complement to complex image\u2010guidance systems due to its advantages of continuous tracking ability, no radiation dose, and fully automated clinic workflow.<\/jats:p><jats:p>PACS number: 87.55.Qr<\/jats:p>","DOI":"10.1120\/jacmp.v14i6.4543","type":"journal-article","created":{"date-parts":[[2017,2,27]],"date-time":"2017-02-27T23:16:25Z","timestamp":1488237385000},"page":"322-337","source":"Crossref","is-referenced-by-count":14,"title":["Prevention of gross setup errors in radiotherapy with an efficient automatic patient safety system"],"prefix":"10.1002","volume":"14","author":[{"given":"Guanghua","family":"Yan","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kathryn","family":"Mittauer","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yin","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chihray","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan G.","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology University of Florida  Gainesville FL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,11,4]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.radonc.2010.05.002"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.radonc.2010.03.022"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.radonc.2009.08.044"},{"key":"e_1_2_6_5_1","volume-title":"Institute of Physics and Engineering in Medicine, and Society and College of Radiographers. 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