9 Reporting in Brachytherapy: Dose and Volume Specification

Reporting in Brachytherapy 203

Fig 6.28: Definitive cervix cancer brachytherapy (IB, IIB proximal, for details see 14.7-9). Reporting doses and volumes for five different clinical situations (tumour sizes) and treat-ment schedules. For cases (a), (b) and (c) brachytherapy is combined with external beam therapy. For cases (d) and (e), brachytherapy alone is applied (d) preop. BT (“IGR”); (e) BT alone (“Manchester”). The same brachy-therapy technique is assumed for all cases. For cases (a), (b) and (c), the Treated Volume is defined by the 85 Gy isodose. For cases (d) and (e) the Treated Volume is defined by the 60 and 75 Gy isodoses, respectively. For the five clinical cases, the GTVs are shown together with the 60-75-85-95 Gy isodose curves. On the lower part of the figure, the different isodoses are presented at a larger scale to illustrate the differences in the volume dimensions.