Dose calculation for asymmetric photon fields with independent jaws and multileaf collimators

2000 ◽  
Vol 27 (2) ◽  
pp. 340-345 ◽  
Author(s):  
Fujio Araki ◽  
Ryuji Ikeda ◽  
Nobuyuki Moribe ◽  
Yuichi Shirakawa ◽  
Masahiro Hatemura ◽  
...  
Keyword(s):  
Dose Calculation ◽  
Multileaf Collimators

Dose calculation and verification of intensity modulation generated by dynamic multileaf collimators

2000 ◽  
Vol 27 (5) ◽  
pp. 960-971 ◽  
Author(s):  
Spiridon Papatheodorou ◽  
Jean-Claude Rosenwald ◽  
Sofia Zefkili ◽  
Marie-Claude Murillo ◽  
Jean Drouard ◽  
...  
Keyword(s):  
Dose Calculation ◽  
Intensity Modulation ◽  
Multileaf Collimators

Classification of methods for generating pseudo-CT from MRI images for MRI-alone RT

2017 ◽  
Vol 1 (3) ◽  
pp. 54
Author(s):  
BOUKELLOUZ Wafa ◽  
MOUSSAOUI Abdelouahab
Keyword(s):  
Performance Metrics ◽  
Radiation Treatment ◽  
Hybrid Methods ◽  
Dose Calculation ◽  
Absolute Error ◽  
Ct Images ◽  
General Technique ◽  
Therapy Field ◽  
The Brain

Background: Since the last decades, research have been oriented towards an MRI-alone radiation treatment planning (RTP), where MRI is used as the primary modality for imaging, delineation and dose calculation by assigning to it the needed electron density (ED) information. The idea is to create a computed tomography (CT) image or so-called pseudo-CT from MRI data. In this paper, we review and classify methods for creating pseudo-CT images from MRI data. Each class of methods is explained and a group of works in the literature is presented in detail with statistical performance. We discuss the advantages, drawbacks and limitations of each class of methods. Methods: We classified most recent works in deriving a pseudo-CT from MR images into four classes: segmentation-based, intensity-based, atlas-based and hybrid methods. We based the classification on the general technique applied in the approach. Results: Most of research focused on the brain and the pelvis regions. The mean absolute error (MAE) ranged from 80 HU to 137 HU and from 36.4 HU to 74 HU for the brain and pelvis, respectively. In addition, an interest in the Dixon MR sequence is increasing since it has the advantage of producing multiple contrast images with a single acquisition. Conclusion: Radiation therapy field is emerging towards the generalization of MRI-only RT thanks to the advances in techniques for generation of pseudo-CT images. However, a benchmark is needed to set in common performance metrics to assess the quality of the generated pseudo-CT and judge on the efficiency of a certain method.

A Monte Carlo study of radiation transport through multileaf collimators

2001 ◽  
Vol 28 (12) ◽  
pp. 2497-2506 ◽  
Author(s):  
Jong Oh Kim ◽  
Jeffrey V. Siebers ◽  
Paul J. Keall ◽  
Mark R. Arnfield ◽  
Radhe Mohan
Keyword(s):  
Monte Carlo ◽  
Radiation Transport ◽  
Monte Carlo Study ◽  
Multileaf Collimators

Dose calculation in proton therapy using a discovery cross‐domain generative adversarial network (DiscoGAN)

2021 ◽  
Author(s):  
Xiaoke Zhang ◽  
Zongsheng Hu ◽  
Guoliang Zhang ◽  
Yongdong Zhuang ◽  
Yuenan Wang ◽  
...  
Keyword(s):  
Proton Therapy ◽  
Dose Calculation ◽  
Generative Adversarial Network ◽  
Adversarial Network ◽  
Cross Domain

Clinical application of conformal radiosurgery using multileaf-collimators

1994 ◽  
Vol 30 ◽  
pp. 265 ◽  
Author(s):  
J. Debus ◽  
R. Engenhart ◽  
B. Rhein ◽  
W. Schlegel ◽  
L. Schad ◽  
...  
Keyword(s):  
Clinical Application ◽  
Multileaf Collimators
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