10 General Aspects of Head and Neck Brachytherapy

General Aspects of Head and Neck Brachytherapy

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THE GEC ESTROHANDBOOKOF BRACHYTHERAPY | Part II Clinical Practice Version 1 - 30/01/2019

Fig 6. Three pairs of non-looping loops after removal.

Fig 7. (A) Contrast-enhanced MRI showing the recurrent lesion (arrows); (B) Customized mold. Note the curvature of the catheters in the surface of the intracavitary extent of the mold; and (C) Axial CT scan showing the intraoral mold in place with the prescription isodose of 4 Gy (blue) covering most of the ggross tumor volume (outlined in red). Taken from Ciérvide et al [13].

Fig 8. Six free-hand catheters implanted after a resection of a T2N0 squamous cell carcinoma of the leftborderof the tongue.Cathetersenter the tumorbed through theskinof the ipsilateralneck.The tipof thecathetersendat5 to10mmover the tonguesurface toavoidunderdosageof the tumorbed.

Fig 9. An implant with 8 rigid needles and templates in a big lip carcinoma, shows a dosimetry with very high homogeneity. High doses per fraction can be used.