title: Feasibility of using anatomical surrogates for predicting the position of lung tumours.
abstract: We studied the use of internal anatomical surrogates (carina and diaphragm) for the purpose of predicting the 3D position of lung tumours in 41 patients, in whom repeat 4DCT scans were available. Despite using two surrogates, significant prediction errors were observed, which varied depending on tumour position, baseline tumour motion and respiratory phase.
authors.affiliation: Department of Radiation Oncology, VU University Medical Centre, Amsterdam, The Netherlands. f.spoelstra@vumc.nl
authors.forename: Femke O B
authors.initials: FO
authors.lastname: Spoelstra
authors.forename: Lineke
authors.initials: L
authors.lastname: van der Weide
authors.forename: John R
authors.initials: JR
authors.lastname: van Sörnsen de Koste
authors.forename: Andrew
authors.initials: A
authors.lastname: Vincent
authors.forename: Ben J
authors.initials: BJ
authors.lastname: Slotman
authors.forename: Suresh
authors.initials: S
authors.lastname: Senan
mesh_terms: D003964:Diaphragm / Q000033:anatomy & histology*; D005240:Feasibility Studies; D006801:Humans; D016014:Linear Models; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy*; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D025341:Principal Component Analysis; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D061106:Radiotherapy Setup Errors / Q000517:prevention & control*; D013238:Stereotaxic Techniques; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014132:Trachea / Q000033:anatomy & histology*