Stochastic formulation of patient positioning using linac-mounted cone beam imaging with prior knowledge.

TitleStochastic formulation of patient positioning using linac-mounted cone beam imaging with prior knowledge.
Publication TypeJournal Article
Year of Publication2011
AuthorsHoegele, W, Loeschel, R, Dobler, B, Hesser, J, Koelbl, O, Zygmanski, P
JournalMedical physics
Volume38
Pagination668–81
Date Publishedmar
ISSN0094-2405
KeywordsAlgorithms, Bayes Theorem, Computer-Assisted, Cone-Beam Computed Tomography, Cone-Beam Computed Tomography: methods, Humans, Image Processing, Imaging, Patient Positioning, Patient Positioning: methods, Phantoms, Stochastic Processes
Abstract

In this work, a novel stochastic framework for patient positioning based on linac-mounted CB projections is introduced. Based on this formulation, the most probable shifts and rotations of the patient are estimated, incorporating interfractional deformations of patient anatomy and other uncertainties associated with patient setup.

URLhttp://www.ncbi.nlm.nih.gov/pubmed/21452704
Citation Key Hoegele2011