SU-E-T-350: Investigation About Source of Errors in Treatment Planning of HDR Brachytherapy by Using a New Phantom Design Combined with Gafchromic Films and TG-43 Calculation

2013 ◽  
Vol 40 (6Part16) ◽  
pp. 285-285
Author(s):  
S Gholami ◽  
H Mirzaei ◽  
A Meigooni ◽  
A Jabariarfaei ◽  
S Mahdavi ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Hdr Brachytherapy ◽  
Gafchromic Films ◽  
Phantom Design ◽  
Errors In Treatment

On the experimental validation of model-based dose calculation algorithms for192Ir HDR brachytherapy treatment planning

2017 ◽  
Vol 62 (10) ◽  
pp. 4160-4182 ◽  
Author(s):  
Eleftherios P Pappas ◽  
Emmanouil Zoros ◽  
Argyris Moutsatsos ◽  
Vasiliki Peppa ◽  
Kyveli Zourari ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Experimental Validation ◽  
Dose Calculation ◽  
Hdr Brachytherapy ◽  
Model Based ◽  
Calculation Algorithms ◽  
Dose Calculation Algorithms

Dose assessment to the Bladder during Intracavitary Brachytherapy of the Cervix using Gafchromic films

2017 ◽  
pp. 97-105
Author(s):  
J. Avevor ◽  
S. N. A. Tagoe ◽  
J. H. Amuasi ◽  
J. J. Fletcher ◽  
I. Shirazu
Keyword(s):  
Treatment Planning ◽  
Maximum Dose ◽  
Mean Difference ◽  
Planning System ◽  
Treatment Planning System ◽  
In Vivo Dosimetry ◽  
Intracavitary Brachytherapy ◽  
Gafchromic Films ◽  
System Verification ◽  
The Mean

Intracavitary brachytherapy procedures are used for cervical cancer treatment, by the insertion of radioactive implants directly into the diseased tissues. During the treatment process, the bladder together with surrounding tissues are exposed to radiations. Clinical complications do results from high doses received by parts of the bladder during intracavitary brachytherapy of the cervix. The aim of this study is to assess the dose delivered to the bladder using Gafchromic films and compare it with the optimized dose calculated by the Brachy Prowess 4.60 Treatment Planning System (TPS) reports for empirical validation and system verification. Fletcher suite applicators were used to perform thirty (30) different clinical insertions on the constructed cervix phantom and results evaluated. The mean difference between the doses calculated by the TPS and the doses measured by the Gafchromic film for the bladder at the distance of 0.5cm from the edge of the film was 16.3 % (range -35.33 to +39.37). At a distance of 1.5cm for the bladder, the mean difference was 19.4% (range -49.48 to +30.39). The TPS calculated maximum dose was typically higher than the measured maximum dose. However, in some cases, the measured doses were found to be higher than the doses calculated by the TPS. This is due to positional inaccuracies of the sources during treatment planning. It is recommended that in vivo dosimetry be performed in addition to computation.

SU-GG-T-25: Intercomparison Between Nucletron Plato and Simuplan Systems for Ir-193 HDR Brachytherapy Treatment Planning

2008 ◽  
Vol 35 (6Part9) ◽  
pp. 2731-2732
Author(s):  
M Ferreira ◽  
H Mota ◽  
M Wolfe ◽  
C Austerlitz
Keyword(s):  
Treatment Planning ◽  
Hdr Brachytherapy
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