{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T07:31:50Z","timestamp":1753860710067,"version":"3.41.2"},"reference-count":17,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2022,5,30]],"date-time":"2022-05-30T00:00:00Z","timestamp":1653868800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["aapm.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To assess differences between frame\u2010based and cone beam computed tomography (CBCT)\u2010defined stereotactic space and to identify predictors of the observed findings.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and materials<\/jats:title><jats:p>Differences between frame\u2010based and CBCT\u2010defined stereotactic space after image co\u2010registration were reviewed for 529 patients. Treatment planning system reported the information about the shifts in <jats:italic>X<\/jats:italic>, <jats:italic>Y<\/jats:italic>, and <jats:italic>Z<\/jats:italic> coordinates of the center of the stereotactic space (i.e., coordinate <jats:italic>X<\/jats:italic>\u00a0=\u00a0100\u00a0mm, <jats:italic>Y<\/jats:italic>\u00a0=\u00a0100\u00a0mm, and <jats:italic>Z<\/jats:italic>\u00a0=\u00a0100\u00a0mm) defined by the frame, and the maximum shot displacement (MSD) in mm. We collected the potential predictors of the differences. In total, 19 factors were investigated. We used multiple linear regression to evaluate associations with the increased differences.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Rotational and translational shifts greater than 1\u00b0 and 1\u00a0mm, respectively, were observed in 2.6% of patients. At the same time, a decrease in tumor coverage of more than 5% was detected in 8.3% of cases. It was revealed that the higher fiducial errors (both mean and maximum), the greater weight of the patient, and the lower Karnofsky Performance Scale were predictors of increased rotational, translational shifts, and the MSD.<\/jats:p><\/jats:sec>","DOI":"10.1002\/acm2.13637","type":"journal-article","created":{"date-parts":[[2022,5,30]],"date-time":"2022-05-30T14:43:56Z","timestamp":1653921836000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Discrepancies between frame\u2010 and CBCT\u2010based stereotactic space definition on the Gamma Knife Icon"],"prefix":"10.1002","volume":"23","author":[{"given":"Irina I.","family":"Bannikova","sequence":"first","affiliation":[{"name":"Department of Physics of Accelerators and Radiation Medicine Lomonosov Moscow State University School of Physics  Moscow Russia"},{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aleksandra V.","family":"Dalechina","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Valery V.","family":"Kostjuchenko","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anjelika E.","family":"ZHuravleva","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrey V.","family":"Golanov","sequence":"additional","affiliation":[{"name":"Department of Radiosurgery and Radiation Therapy N. 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Burdenko National Medical Research Center of Neurosurgery  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergey M.","family":"Banov","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivan K.","family":"Osinov","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aleksandr N.","family":"Savateev","sequence":"additional","affiliation":[{"name":"Moscow Gamma Knife Center JSC \u201cNeurosurgery Business Center\u201d  Moscow Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,5,30]]},"reference":[{"key":"e_1_2_13_2_1","unstructured":"Elekta.Leksell Gamma Knife\u00ae Perfexion\u2122 product brochure: \u00a9.\u00a0(2019).\u00a0Elekta AB. 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