SU-E-T-394: Comparison of Planned Dose Distribution Vs. Delivered Dose Distribution for Both IMRT and Proton Therapy Using Weekly Repeat 4DCT Data Sets

2012 ◽  
Vol 39 (6Part16) ◽  
pp. 3795-3795
Author(s):  
Y Chen ◽  
L Zhang ◽  
L Court ◽  
Z Liao ◽  
X Zhu ◽  
...  
Keyword(s):  
Proton Therapy ◽  
Dose Distribution ◽  
Data Sets ◽  
Delivered Dose

TH-D-303A-03: Validation of An Analytical 1D Filtering of the Dose Distribution for the Calculation of the Expected PET Distributions in Proton Therapy.

2009 ◽  
Vol 36 (6Part28) ◽  
pp. 2814-2814 ◽  
Author(s):  
F Attanasi ◽  
A Knopf ◽  
K Parodi ◽  
T Bortfeld ◽  
H Paganetti ◽  
...  
Keyword(s):  
Proton Therapy ◽  
Dose Distribution

TH-C-BRD-08: Reducing the Effect of Respiratory Motion On the Delivered Dose in Proton Therapy Through Proper Field Angle Selection

2014 ◽  
Vol 41 (6Part32) ◽  
pp. 552-552
Author(s):  
J Matney ◽  
P Park ◽  
L Court ◽  
X Zhu ◽  
H Li ◽  
...  
Keyword(s):  
Proton Therapy ◽  
Respiratory Motion ◽  
Delivered Dose ◽  
Proper Field

SU-GG-T-400: A Monte Carlo Based Proton Therapy Dose Distribution Verification System

2010 ◽  
Vol 37 (6Part22) ◽  
pp. 3278-3278 ◽  
Author(s):  
C Beltran ◽  
Y Jia ◽  
R Slopsema ◽  
D Yeung ◽  
Z Li
Keyword(s):  
Monte Carlo ◽  
Proton Therapy ◽  
Dose Distribution ◽  
Verification System

Comparative analysis of dose distribution in photon and proton therapy of prostate cancer

2006 ◽  
Vol 40 (5) ◽  
pp. 229-232
Author(s):  
A. Yu. Smyslov ◽  
I. N. Konchili ◽  
L. A. Lebedev ◽  
E. V. Khmelevskii
Keyword(s):  
Prostate Cancer ◽  
Comparative Analysis ◽  
Proton Therapy ◽  
Dose Distribution

scholarly journals Investigation of the Optimal Mouthpiece Material for Proton Therapy of Head and Neck Cancer

2021 ◽  
Author(s):  
Masaaki Suzuka ◽  
Takashi Mori ◽  
Shigeru Yamano ◽  
Akiko Takeuchi ◽  
Tomoka Shima ◽  
...  
Keyword(s):  
Head And Neck ◽  
Proton Therapy ◽  
Dose Distribution ◽  
Normal Tissue ◽  
Dental Materials ◽  
Ethylene Vinyl Acetate ◽  
Ct Value ◽  
Treatment Plans ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

Abstract Purpose: To investigate how the materials of mouthpieces used for proton therapy of head and neck cancer affect the dose distribution in surrounding normal tissue by focusing on the CT values of the materials.Methods: Six dental materials were used to measure CT values: temporary relining resin, tissue conditioner, vinyl polysiloxane, thermoplastic ethylene vinyl acetate copolymer splint, silicone rubber impression material, and a composite impression material. Among these materials, three of the dental materials were investigated further: one material with the CT value closest to water, and the materials with the highest and lowest CT values. Based on these results, we investigated the effect of the CT value of the mouthpiece on the dose distribution in 17 cases in which a mouthpiece was used during proton therapy for head and neck cancers, the treatment plans were recalculated by changing the CT values of the mouthpiece to that of the three identified dental materials. For each cancer case, the irradiation dose to normal tissue was calculated for the treatment plans. The evaluation indices were set to the mandible max dose (GyE), the mandible mean dose (GyE), the volume of the mandible irradiated above 60 GyE (mandible V-60GyE), the parotid affected side mean dose (GyE), the parotid unaffected side mean dose (GyE), and the oral mean dose (GyE). The Wilcoxon’s rank sum test was used to analyze the significance of the differences between treatment plans.Results: The temporary relining resin with the CT value closest to water was 36.9 HU, the vinyl polysiloxane with the highest CT value was 985 HU, and the thermoplastic ethylene vinyl acetate copolymer splint with the lowest CT value was -89.7 HU. The maximum absolute difference among the treatment plans per case was 4.18 GyE for the oral mean dose. The radiation dose for the evaluation indices did not differ significantly among the treatment plans. Conclusion: In the range of CT values from -89.7 HU to 985.0 HU covered in this study, the effect of the CT value of the mouthpiece on the dose distribution may be considered to have no clinical impact.

Delivered dose distribution in patient from kV-CBCT, XVI Elekta system

2014 ◽  
Vol 30 ◽  
pp. e125
Author(s):  
J. Desrousseaux ◽  
A. Barateau ◽  
S. Capdeville
Keyword(s):  
Dose Distribution ◽  
Delivered Dose

PO-0822 IMPACT OF SYSTEMATIC BEAM DELIVERY ERRORS ON THE DOSE DISTRIBUTION IN PROTON THERAPY WITH PENCIL BEAM SCANNING

2012 ◽  
Vol 103 ◽  
pp. S320-S321
Author(s):  
F. Fracchiolla ◽  
G. Gargano ◽  
R. Bellotti ◽  
F.S. Cafagna ◽  
M. Schwarz
Keyword(s):  
Proton Therapy ◽  
Dose Distribution ◽  
Pencil Beam ◽  
Beam Scanning ◽  
Pencil Beam Scanning ◽  
Beam Delivery
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