scholarly journals Performance of dose calculation algorithms from three generations in lung SBRT: comparison with full Monte Carlo‐based dose distributions

2014 ◽  
Vol 15 (2) ◽  
pp. 4-18 ◽  
Author(s):  
Jarkko J. Ojala ◽  
Mika K. Kapanen ◽  
Simo J. Hyödynmaa ◽  
Tuija K. Wigren ◽  
Maunu A. Pitkänen
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Dose Distributions ◽  
Three Generations ◽  
Lung Sbrt ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms

Effects of heterogeneities in dose distributions under nonreference conditions: Monte Carlo simulation vs dose calculation algorithms

2019 ◽  
Vol 44 (1) ◽  
pp. 74-82 ◽  
Author(s):  
Cristiano Queiroz Melo Reis ◽  
Patricia Nicolucci ◽  
Saulo S. Fortes ◽  
Leonardo P. Silva
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Dose Calculation ◽  
Dose Distributions ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms

Radiotherapy dose calculations in high-Z materials: comprehensive comparison between experiment, Monte Carlo, and conventional planning algorithms (Preprint)

2021 ◽  
Author(s):  
Zhangkai Cheng ◽  
Regina Bromley ◽  
Brad Oborn ◽  
Jeremy Booth
Keyword(s):  
Monte Carlo ◽  
Radiation Therapy ◽  
Spinal Metastases ◽  
Dose Calculation ◽  
High Energy ◽  
The Body ◽  
Treatment Technique ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms ◽  
Ct Density

BACKGROUND Despite spinal metastases accounting for 10% to 30% of new tumors diagnoses annually, and radiation therapy is a standard treatment technique, the studies discussing the effects of small-size spinal prostheses on spinal radiation therapy are limited. OBJECTIVE To compare the accuracies of the AAA and AcurosXB dose calculation algorithms and to predict the change in the down-stream and lateral dose deposition of high energy photons in the presence of material with densities higher that commonly found in the body. METHODS Metal rods of titanium (d =4.5g/m2), stainless steel (d=8g/cm2) and tungsten (d=19.25 g/cm2) were positioned in a phantom. Film was position behind and laterally to the rods to measure the dose distribution for a 6 MV, 18 MV and 10 FFF photon beams. A DOSXYZnrc Monte Carlo simulation of the experimental setup was performed The AAA and AcurosXB dose calculation algorithms were used to predict the dose distributions. The dose from film and DOSXYZnrc were compared with the dose predicted by AAA and AcurosXB. RESULTS AAA overestimated the dose behind the rods by 15-25% and underestimated the dose laterally to the rods by 5-15% depending on the range of materials and energies investigated. AcurosXB overestimated the dose behind the rods by 1-18% and underestimated the dose laterally to the rods by up to 5% depending on the range of material and energies investigated. CONCLUSIONS AAA cannot deliver clinically acceptable dose calculation results at a distance less than 10 mm from metals, for a single field treatment. Acuros XB is able to handle metals of low atomic numbers (Z ≤ 26), but not tungsten (Z = 74). This can be due to the restriction of the CT-density table in EclipseTM TPS, which has an upper HU limit of 10501.

On the dosimetric behaviour of photon dose calculation algorithms in the presence of simple geometric heterogeneities: comparison with Monte Carlo calculations

2007 ◽  
Vol 52 (5) ◽  
pp. 1363-1385 ◽  
Author(s):  
Antonella Fogliata ◽  
Eugenio Vanetti ◽  
Dirk Albers ◽  
Carsten Brink ◽  
Alessandro Clivio ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Monte Carlo Calculations ◽  
Photon Dose ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms

Influence of dose calculation algorithms on the predicted dose distributions and NTCP values for NSCLC patients

2011 ◽  
Vol 38 (5) ◽  
pp. 2412-2418 ◽  
Author(s):  
Tine B. Nielsen ◽  
Elinore Wieslander ◽  
Antonella Fogliata ◽  
Morten Nielsen ◽  
Olfred Hansen ◽  
...  
Keyword(s):  
Dose Calculation ◽  
Dose Distributions ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms ◽  
Nsclc Patients

SU-G-BRC-11: Impact of Dose Calculation Algorithms On Lung SBRT Treatments

2016 ◽  
Vol 43 (6Part24) ◽  
pp. 3629-3629
Author(s):  
J. Rosenfield ◽  
X. Yang ◽  
X. Dong ◽  
E. Elder ◽  
K. Higgins ◽  
...  
Keyword(s):  
Dose Calculation ◽  
Lung Sbrt ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms

The impact of photon dose calculation algorithms on expected dose distributions in lungs under different respiratory phases

2008 ◽  
Vol 53 (9) ◽  
pp. 2375-2390 ◽  
Author(s):  
Antonella Fogliata ◽  
Giorgia Nicolini ◽  
Eugenio Vanetti ◽  
Alessandro Clivio ◽  
Peter Winkler ◽  
...  
Keyword(s):  
Dose Calculation ◽  
Dose Distributions ◽  
Photon Dose ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms ◽  
The Impact ◽  
Respiratory Phases
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