SU-E-T-872: The Effect of Photon Beam Energy on IMRT Plan for Prostate Cancer: A Planning Study

2011 ◽  
Vol 38 (6Part24) ◽  
pp. 3692-3692
Author(s):  
J Chung ◽  
J Lee ◽  
J Kim ◽  
I Kim ◽  
T Suh
2009 ◽  
Vol 14 (1) ◽  
pp. 18-31 ◽  
Author(s):  
Gopi SOLAIAPPAN ◽  
Ganesan SINGARAVELU ◽  
Aruna PRAKASARAO ◽  
Bouchaib RABBANI ◽  
Sanjay S. SUPE

2021 ◽  
Vol 82 ◽  
pp. 122-133
Author(s):  
Shadab Momin ◽  
James L. Gräfe ◽  
Konstantinos Georgiou ◽  
Rao F. Khan

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
K. Abdul Haneefa ◽  
K. K. Shakir ◽  
A. Siddhartha ◽  
T. Siji Cyriac ◽  
M. M. Musthafa ◽  
...  

Dosimetric studies of mixed field photon beam intensity modulated radiation therapy (IMRT) for prostate cancer using pencil beam (PB) and collapsed cone convolution (CCC) algorithms using Oncentra MasterPlan treatment planning system (v. 4.3) are investigated in this study. Three different plans were generated using 6 MV, 15 MV, and mixed beam (both 6 and 15 MV). Fifteen patients with two sets of plans were generated: one by using PB and the other by using CCC for the same planning parameters and constraints except the beam energy. For each patient’s plan of high energy photons, one set of photoneutron measurements using solid state neutron track detector (SSNTD) was taken for this study. Mean percentage of V66 Gy in the rectum is 18.55±2.8, 14.58±2.1, and 16.77±4.7 for 6 MV, 15 MV, and mixed-energy plans, respectively. Mean percentage of V66 Gy in bladder is 16.54±2.1, 17.42±2.1, and 16.94±41.9 for 6 MV, 15 MV, and mixed-energy plans, respectively. Mixed fields neutron contribution at the beam entrance surface is 45.62% less than at 15 MV photon beam. Our result shows that, with negligible neutron contributions, mixed field IMRT has considerable dosimetric advantage.


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