27 Bronchus Cancer

Bronchus Cancer

10

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

Lumen diameter: trachea 18mm, primary bronchus 14mm, secondary 11mm, tertiary 9mm Wall thickness: trachea 1mm to 0.5 mm tertiary bronchus

Fig. 29.6: Dose distribution and reporting for palliative endobronchial treatment The prescribed dose (PD) at 10mm, the reference depth (RD) at 10mm and the applicator surface dose (AS) are indi- cated beside the Applicator Diameter (AD 1.7mm). The dose to the tumor and to the bronchial mucosa are strongly dependent on the positioning of the catheter (centred or not centred). The Treated Length (TL) is defined as the length of the 90%-isodose at the reference depth of 10mm.