Challenges in calculation of the gamma index in radiotherapy–towards good practice
The gamma index (γ) is one of the most commonly used metrics for the verification of
complex modulated radiotherapy. The mathematical definition of the γ is computationally …
complex modulated radiotherapy. The mathematical definition of the γ is computationally …
Evaluation of the gamma dose distribution comparison method
DA Low, JF Dempsey - Medical physics, 2003 - Wiley Online Library
The γ tool was developed to quantitatively compare dose distributions, either measured or
calculated. Before computing γ, the dose and distance scales of the two distributions …
calculated. Before computing γ, the dose and distance scales of the two distributions …
A comparison of the gamma index analysis in various commercial IMRT/VMAT QA systems
Purpose To investigate the variability of the global gamma index (γ) analysis in various
commercial IMRT/VMAT QA systems and to assess the impact of measurement with low …
commercial IMRT/VMAT QA systems and to assess the impact of measurement with low …
Evaluation of a new VMAT QA device, or the “X” and “O” array geometries
V Feygelman, G Zhang, C Stevens… - Journal of applied …, 2011 - Wiley Online Library
We introduce a logical process of three distinct phases to begin the evaluation of a new 3D
dosimetry array. The array under investigation is a hollow cylinder phantom with diode …
dosimetry array. The array under investigation is a hollow cylinder phantom with diode …
Interpretation and evaluation of the γ index and the γ index angle for the verification of IMRT hybrid plans
M Stock, B Kroupa, D Georg - Physics in Medicine & Biology, 2005 - iopscience.iop.org
In IMRT, the method for a quantitative comparison of two-dimensional dose distributions is
still under development. The γ evaluation method proposed by Low et al is the most …
still under development. The γ evaluation method proposed by Low et al is the most …
Characterization and clinical evaluation of a novel IMRT quality assurance system
R Sadagopan, JA Bencomo, RL Martin… - Journal of Applied …, 2009 - Wiley Online Library
Intensity‐modulated radiation therapy (IMRT) is a complex procedure that involves the
delivery of complex intensity patterns from various gantry angles. Due to the complexity of …
delivery of complex intensity patterns from various gantry angles. Due to the complexity of …
A critical evaluation of the PTW 2D‐ARRAY seven29 and OCTAVIUS II phantom for IMRT and VMAT verification
M Hussein, EJ Adams, TJ Jordan… - Journal of applied …, 2013 - Wiley Online Library
Quality assurance (QA) for intensity‐and volumetric‐modulated radiotherapy (IMRT and
VMAT) has evolved substantially. In recent years, various commercial 2D and 3D ionization …
VMAT) has evolved substantially. In recent years, various commercial 2D and 3D ionization …
Clinical experience on patient‐specific quality assurance for CBCT‐based online adaptive treatment plan
Purpose Ethos CBCT‐based adaptive radiotherapy (ART) system can generate an online
adaptive plan by re‐optimizing the initial reference plan based on the patient anatomy at the …
adaptive plan by re‐optimizing the initial reference plan based on the patient anatomy at the …
Hybrid plan verification for intensity-modulated radiation therapy (IMRT) using the 2D ionization chamber array I'mRT MatriXX—a feasibility study
B Dobler, N Streck, E Klein, R Loeschel… - Physics in Medicine …, 2009 - iopscience.iop.org
The 2D ionization chamber array I'mRT MatriXX (IBA, Schwarzenbruck, Germany) has been
developed for absolute 2D dosimetry and verification of intensity-modulated radiation …
developed for absolute 2D dosimetry and verification of intensity-modulated radiation …
A unified path seeking algorithm for IMRT and IMPT beam orientation optimization
Objective. Fully automated beam orientation optimization (BOO) for intensity-modulated
radiotherapy and intensity modulated proton therapy (IMPT) is gaining interest, since …
radiotherapy and intensity modulated proton therapy (IMPT) is gaining interest, since …