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- Title
Extraction of tumor motion trajectories using PICCS-4DCBCT: a validation study.
- Authors
Qi, Zhihua; Chen, Guang-Hong
- Abstract
As a counterpart of 4DCT in the treatment planning stage of radiotherapy treatment, 4D cone beam computed tomography (4DCBCT) method has been proposed to verify tumor motion trajectories before radiation therapy treatment delivery. Besides 4DCBCT acquisition using slower gantry rotation speed or multiple rotations, a new method using the prior image constrained compressed sensing (PICCS) image reconstruction method and the standard 1-min data acquisition were proposed. In this paper, the PICCS-4DCBCT method was combined with deformable registration to validate its capability in motion trajectory extraction using physical phantom data, simulated human subject data from 4DCT and in vivo human subject data.
- Publication
Medical physics, 2011, Vol 38, Issue 10, p5530
- ISSN
0094-2405
- Publication type
Journal Article
- DOI
10.1118/1.3637501