SU-E-T-767: Treatment Planning Study of Prostate Cancer by CyberKnife with Respect to the Urethral Dose

2015 ◽  
Vol 42 (6Part24) ◽  
pp. 3513-3513
Author(s):  
H Mizuno ◽  
H Mizuno ◽  
I Sumida ◽  
Y Otani ◽  
M Yagi ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Treatment Planning ◽  
Planning Study ◽  
Urethral Dose

SU-FF-T-438: Treatment Planning Study of Prostate Cancer IMRT with a Flattening Filter Free Accelerator

2006 ◽  
Vol 33 (6Part13) ◽  
pp. 2146-2146
Author(s):  
S Kry ◽  
O Vassiliev ◽  
D Kuban ◽  
F Poenisch ◽  
M Salehpour ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Treatment Planning ◽  
Planning Study ◽  
Flattening Filter Free ◽  
Flattening Filter

scholarly journals Decreasing the Dose to the Rectal Wall by Using a Rectal Retractor during Radiotherapy of Prostate Cancer: A Comparative Treatment Planning Study

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Kristina Nilsson ◽  
Andreas K. Johansson ◽  
Anders Montelius ◽  
Ingela Turesson ◽  
Risto O. Heikkinen ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Treatment Planning ◽  
Rectal Wall ◽  
Target Volume ◽  
Planning Study ◽  
Volumetric Arc Therapy ◽  
Dose Volume ◽  
Arc Therapy ◽  
Treatment Plans ◽  
Comparative Treatment

Aim. The aim of the study was to examine the dosimetric effect of rectal retraction, using a rectal retractor, by performing a comparative treatment planning study. Material and Methods. Treatment plans using volumetric arc therapy (VMAT) were produced for ten patients both with and without rectal retraction. A hypofractionation scheme of 42.7 Gy in seven fractions was used. The dose to the rectal wall was evaluated for both methods (with and without retraction) using four dose-volume criteria: V40.1 Gy, V38.3 Gy, V36.5 Gy, and V32.6 Gy. Results. The retraction of the rectal wall increased the distance between the rectal wall and the prostate. The rectal wall volume was reduced to zero for all dose-volume values except for V32.6 Gy, which was 0.2 cm3 in average when the rectal retractor was used. Conclusion. There was a significant decrease of V40.1 Gy, V38.3 Gy, V36.5 Gy, and V32.6 Gy when the rectal retractor was used without compromising the dose coverage of planning target volume (PTV).

Sign in / Sign up

Export Citation Format

Share Document