Figures & data
Table I. Number of patients in the different T- and N-stages. The distribution of patients in AJCC/UICC stages was: Stage I: 0 patients, stage II: 2 patients, stage III: 5 patients, and stage IV: 13 patients.
Table II. Maximum prescribed doses to organs at risk (OARs) and planning risk volumes (PRVs).
Figure 1. Doses to the planning target volumes. Maximum (received by 1% of the volume in question) and minimum (received by 99%) target doses for PTV-T, PTV-Eh, and PTV-El with IMRT and 3D-CRT, respectively. Each dot represents the value obtained from one patient; the small horizontal lines are medians. The large horizontal lines indicate 95% of the prescribed dose to the target volume. *p < 0.05.
Figure 2. Comparison of IMRT and 3D-CRT conformity index for PTV-T, PTV-Eh, and PTV-El. Each dot represents the value obtained from one patient, the horizontal lines are medians. *p < 0.05.
Figure 3. Doses to risk organs of primary priority. Maximum doses received by 1% of the organ in question. Each dot represents the value obtained from one patient; the small horizontal lines are medians. The large horizontal lines indicate the prescribed maximum dose. *p < 0.05.
Figure 4. Irradiated volumes in risk organs of secondary priority. Each dot represents the relative organ volume receiving more than the prescribed maximum mean dose. The horizontal lines are medians. *p < 0.05
Table III. Number of patients (n = 11) in which the dose constraint was achieved with IMRT and 3D-CRT, respectively. Maximum dose allowed to the spinal cord was 45 Gy for IMRT but in the 3D-CRT plans the spinal cord was treated to 46 Gy before field reduction. Consequently, the dose limit was 45 Gy for IMRT and 50 Gy for 3D-CRT.