Quantitative Assessment of the Quality of Treatment Planning for Patients with Advanced Cervical Cancer

Resumo

The indices of dose homogeneity and dose conformance for target volumes were calculated for 72 patients with stage 2-3 cervical cancer. Doses received by the bladder and the rectum were assessed for the patients in three groups. The first group received radiotherapy with intensity modulation in the rotational mode (RapidArc); the second group received intensity-modulated radiotherapy (IMRT); the third group, 3D conformal radiotherapy (3D CRT).The best homogeneity and conformance indices were obtained in the group receiving 3D CRT. The lowest dose loads on the rectum and the bladder were observed in the group receiving IMRT (36-58 Gy).