Comparison of inverse planning systems based on biological or physical factors: Pinnacle®, Corvus® and Monaco®

Coelho, Carina Marques; Faustino, V.; Heliodoro, H.; Monsanto, Fátima; Sá, Ana Cravo; Varandas, C.

http://hdl.handle.net/10400.21/3803

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Authors

Coelho, Carina Marques

Abstract(s)

Radiotherapy (RT) is one of the most important approaches in the treatment of cancer and its performance can be improved in three different ways: through the optimization of the dose distribution, by the use of different irradiation techniques or through the study of radiobiological initiatives. The first is purely physical because is related to the physical dose distributiuon. The others are purely radiobiological because they increase the differential effect between the tumour and the health tissues. The Treatment Planning Systems (TPS) are used in RT to create dose distributions with the purpose to maximize the tumoral control and minimize the complications in the healthy tissues. The inverse planning uses dose optimization techniques that satisfy the criteria specified by the user, regarding the target and the organs at risk (OAR’s). The dose optimization is possible through the analysis of dose-volume histograms (DVH) and with the use of computed tomography, magnetic resonance and other digital image techniques.