Dosimetric evaluation of Acuros XB Advanced Dose Calculation algorithm in heterogeneous media.

ABSTRACT:

Background

A study was realised to evaluate and determine relative figures of merit of a new algorithm for photon dose calculation when applied to inhomogeneous media.

Methods

The new Acuros XB algorithm implemented in the Varian Eclipse treatment planning system was compared against a Monte Carlo method (VMC++), and the Analytical Anisotropic Algorithm (AAA). The study was carried out in virtual phantoms characterized by simple geometrical structures. An insert of different material and density was included in a phantom built of skeletal-muscle and HU = 0 (setting "A"): Normal Lung (lung, 0.198 g/cm3); Light Lung (lung, 0.035 g/cm3); Bone (bone, 1.798 g/cm3); another phantom (setting "B") was built of adipose material and including thin layers of bone (1.85 g/cm3), adipose

SUBMITTER: Fogliata A 

PROVIDER: S-EPMC3168411 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature