Abstract
The successful delivery of spine stereotactic body radiation therapy (SBRT) requires a delicate balance of coverage, conformality and spinal cord sparing. Volumetric modulated arc therapy (VMAT) and helical tomotherapy (Tomo) are rotation-based radiation therapy techniques with known dosimetric advantages in achieving these goals in other disease sites. However, these treatments have never been compared in spine SBRT. Thus, we evaluated coverage, conformality/heterogeneity, and spinal cord sparing in 10 spine SBRT cases planned using VMAT and Tomo.
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