Difference in dose-volumetric data between the analytical anisotropic algorithm, the dose-to-medium, and the dose-to-water reporting modes of the Acuros XB for lung stereotactic body radiation therapy

Autor: Kenji Kitsuda, Wambaka Ange Mampuya, Mitsuhiro Nakamura, Yoshinori Hirose, Takashi Ishigaki, Masahiro Hiraoka, Takashi Mizowaki
Rok vydání: 2016
Předmět:
Lung Neoplasms
Acuros XB
Stereotactic body radiation therapy
medicine.medical_treatment
dose‐to‐medium (Dm)
stereotactic body radiation therapy
Radiosurgery
AAA (anisotropic analytical algorithm)
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
medicine
Radiation Oncology Physics
Humans
Radiology
Nuclear Medicine and imaging
Radiation treatment planning
Instrumentation
Mathematics
Radiation
Phantoms
Imaging
business.industry
Radiotherapy Planning
Computer-Assisted
Volumetric data
Water
Isocenter
Radiotherapy Dosage
Acuros xb
030220 oncology & carcinogenesis
Analytical anisotropic algorithm
Anisotropy
Radiotherapy
Intensity-Modulated
Nuclear medicine
business
Stereotactic body radiotherapy
Algorithms
dose‐to‐water (Dw)
dose‐volumetric data
Zdroj: Journal of Applied Clinical Medical Physics
ISSN: 1526-9914
DOI: 10.1120/jacmp.v17i5.6338
Popis: The purpose of this study was to evaluate the difference in dose‐volumetric data between the analytical anisotropic algorithms (AAA) and the two dose reporting modes of the Acuros XB, namely, the dose to water (AXB−Dw) and dose to medium (AXB−Dm) in lung stereotactic body radiotherapy (SBRT). Thirty‐eight plans were generated using the AXB−Dm in Eclipse Treatment Planning System (TPS) and then recalculated with the AXB−Dw and AAA, using identical beam setup. A dose of 50 Gy in 4 fractions was prescribed to the isocenter and the planning target volume (PTV) D95%. The isocenter was always inside the PTV. The following dose‐volumetric parameters were evaluated; D2%, D50%, D95%, and D98% for the internal target volume (ITV) and the PTV. Two‐tailed paired Student's t‐tests determined the statistical significance. Although for most of the parameters evaluated, the mean differences observed between the AAA, AXB−Dmand AXB−Dw were statistically significant (p
Databáze: OpenAIRE
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