Accuracy Evaluation of Dose Warping Using Deformable Image Registration in Carbon Ion Therapy.

ABSTRACT:

Purpose

The study's purpose was to use a simple geometry phantom to validate the deformable image registration (DIR) accuracy and dose warping accuracy in carbon ion radiotherapy (CIRT) and to provide an index for dosimetry in CIRT.

Materials and methods

We used geometric and anatomical phantoms provided by AAPM TG-132. The DIRs of 3 different settings were performed between reference and translational images for each phantom. CIRT and photon therapy (3-dimensional conformal radiotherapy and volumetric modulated radiotherapy) treatment plans were transformed by the use of deformation vector fields calculated from the DIR of each setting. The dose distribution calculated on the basis of rigid registration between images was used as the ground truth and compared with the warpe

SUBMITTER: Miyasaka Y 

PROVIDER: S-EPMC11743904 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature