27 Bronchus Cancer

Bronchus Cancer

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THE GEC ESTROHANDBOOKOF BRACHYTHERAPY | Part II Clinical Practice Version 1 - 30/04/2017

Fig. 29.8: A. Anterior-posterior localisation radiograph in a tumour growing around the carina of the intermediate and lower lobe bronchus with two intraluminal tubes introduced into the intermediate and lower lobe bronchus. B. Dose distribution in case of a fork application with a stepping source afterloader. Individual dwell times should be programmed in such a way that the dose at 15 mm from the fork will not exceed the dose prescribed at 10 mm from the individual source lines. C. 3D target delineation for treatment of a bronchus tumour located at the bifurcation of a tertiary carina of the right inferior lobe D. 3D dose planning for the same patient

Fig. 29. 9: Sectional image of a small tumor of 8mm in the left primary bronchus. In yellow the delineated GTV, in red the delineated CTV extending 10 mm into the bronchial wall. In blue the delineated oesophagus. In green he PTV is drawn by adding another 10 mm both sides of the CTV