SU-FF-T-311: Monte-Carlo Calculation of Integral Dose for Gamma Knife Treatment Planning

2007 ◽  
Vol 34 (6Part12) ◽  
pp. 2473-2473
Author(s):  
K Li ◽  
J Wang ◽  
M Cai ◽  
N Mayr
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Gamma Knife ◽  
Monte Carlo Calculation ◽  
Integral Dose

Monte Carlo calculation of single-beam dose profiles used in a gamma knife treatment planning system

1998 ◽  
Vol 25 (9) ◽  
pp. 1673-1675 ◽  
Author(s):  
Joel Y. C. Cheung ◽  
K. N. Yu ◽  
C. P. Yu ◽  
Robert T. K. Ho
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Gamma Knife ◽  
Monte Carlo Calculation ◽  
Planning System ◽  
Treatment Planning System ◽  
Single Beam ◽  
Beam Dose

195 Evaluation of the treatment planning system of the Cyberknife by means of a comparison to Monte Carlo calculation

2005 ◽  
Vol 76 ◽  
pp. S96
Author(s):  
S. Coral ◽  
P. Francescon ◽  
C. Cavedon ◽  
M. Avanzo ◽  
J. Stancanello ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Monte Carlo Calculation ◽  
Planning System ◽  
Treatment Planning System

scholarly journals Development of a Monte Carlo model for treatment planning dose verification of the Leksell Gamma Knife Perfexion radiosurgery system

2016 ◽  
Vol 17 (4) ◽  
pp. 190-201 ◽  
Author(s):  
Jiankui Yuan ◽  
Simon S. Lo ◽  
Yiran Zheng ◽  
Jason W. Sohn ◽  
Andrew E. Sloan ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Gamma Knife ◽  
Monte Carlo Model ◽  
Dose Verification ◽  
Gamma Knife Perfexion

SP-0226: Cloud-based treatment planning and Monte Carlo calculation

2014 ◽  
Vol 111 ◽  
pp. S88
Author(s):  
L. Xing ◽  
H. Wang ◽  
X. Chen ◽  
Y. Na ◽  
K. Bush ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Monte Carlo Calculation

Monte Carlo calculation of the energy parameters and spatial distribution of the cathodic arc ions while passing through the macro-particles filters

2018 ◽  
Vol 1 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Alexey Chernogor ◽  
Igor Blinkov ◽  
Alexey Volkhonskiy
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
Monte Carlo ◽  
Monte Carlo Calculation ◽  
Inhomogeneous Magnetic Field ◽  
Flow Energy ◽  
Wide Range ◽  
Field Concentrator ◽  
Cathodic Arc ◽  
The Magnetic Field

The flow, energy distribution and concentrations profiles of Ti ions in cathodic arc are studied by test particle Monte Carlo simulations with considering the mass transfer through the macro-particles filters with inhomogeneous magnetic field. The loss of ions due to their deposition on filter walls was calculated as a function of electric current and number of turns in the coil. The magnetic field concentrator that arises in the bending region of the filters leads to increase the loss of the ions component of cathodic arc. The ions loss up to 80 % of their energy resulted by the paired elastic collisions which correspond to the experimental results. The ion fluxes arriving at the surface of the substrates during planetary rotating of them opposite the evaporators mounted to each other at an angle of 120° characterized by the wide range of mutual overlapping.

A simple treatment planning strategy for patients with multiple metastases treated with Gamma Knife surgery

2006 ◽  
Vol 105 (Supplement) ◽  
pp. 2-4 ◽  
Author(s):  
James G. Douglas ◽  
Robert Goodkin
Keyword(s):  
Mr Imaging ◽  
Treatment Planning ◽  
Gamma Knife ◽  
Gamma Knife Surgery ◽  
Planning Method ◽  
Cns Metastases ◽  
Cell Lung Carcinoma ◽  
Dose Volume Histograms ◽  
Number Of Patients ◽  
The Brain

ObjectIn a substantial number of patients treated at the authors' facility for brain metastases, additional lesions are identified at the time of Gamma Knife surgery (GKS). These lesions are often widely dispersed and may number over 10, which is the maximal number of matrices that can be currently placed for treatment with Leksell Gamma-Plan 4C. The authors describe a simple planning method for GKS in patients with multiple, widely dispersed central nervous system (CNS) metastases.MethodsTwo patients presented with three to five identified recurrent metastases from non–small cell lung carcinoma and breast carcinoma after having received whole-brain radiotherapy. At the time of treatment with GKS in each patient, spoiled-gradient Gd-enhanced magnetic resonance (MR) imaging revealed substantially more metastases than originally thought, which were widely scattered throughout all regions of the brain. The authors simplified the treatment planning approach by dividing the entire CNS contents into six contiguous, nonoverlapping matrices, which allowed for the planning, calculation, and treatment of all lesions.Two patients were successfully treated with GKS for more than 10 CNS metastases by using this simple planning method. Differing peripheral doses to varied-size lesions were delivered by prescribing to different isodose curves within any given matrix when required. Dose–volume histograms showed brain doses as follows: 10% of the total brain volume received 5 to 6.4 Gy; 25% received 3.8 to 4.8 Gy; 50% received 2.7 to 3.1 Gy; and 75% received 2.2 to 2.5 Gy.Conclusions The delineation of more metastases than appreciated on the diagnostic MR imaging is a common occurrence at the time of GKS at the authors' institution. The treatment of multiple (>10), widely dispersed CNS metastases can be simplified by the placement of multiple, contiguous, non-overlapping matrices, which can be employed to treat lesions in all areas of the brain when separate matrices cannot be utilized.

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