Dosimetric impact of CT metal artifact reduction for spinal implants in stereotactic body radiotherapy planning.

ABSTRACT:

Background

Metal artifacts due to spinal implants may affect the accuracy of dose calculation for radiotherapy. However, the dosimetric impact of metal artifact reduction (MAR) for spinal implants in stereotactic body radiotherapy (SBRT) plans has not been well studied. The objective of this study was to evaluate the dosimetric impact of MAR in spinal SBRT planning with three clinically common dose calculation algorithms.

Methods

Gammex phantom and 10 patients' computed tomography (CT) images were studied to investigate the effects of titanium implants. A commercial orthopedic MAR algorithm was employed to reduce artifacts. Dose calculations for SBRT were conducted on both artifact-corrected and uncorrected images using three commercial algorithms [analytical anisotropic alg

SUBMITTER: Li B 

PROVIDER: S-EPMC10721987 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature