Table 3.
Comparison of relationship between the mean parotid gland doses and washout rates after radiotherapy with previous studies
| Authors | Evaluation methods | Number of subjects | Radiation methods | Mean parotid dose | Washout rates |
|---|---|---|---|---|---|
| Gupta et al.14 | Scintigraphy | 82 | IMRT 3D-CRT |
Ipsilateral: 50.5 Gy Contralateral: 35.4 Gy |
3 M: 26%, 12 M: 38%, 24 M: 59%, 36M:65.3% |
| Maes et al.9 | Scintigraphy | 78 | 3D-CRT | 21 Gy | 4 W: 31% 28 W: 79% |
| Roesink et al. (2004)3 | Scintigraphy | 192 | 3D-CRT | 33.1 Gy | 6 W: 42% 12 M: 72% |
| Braam et al.15 | Questionnaire Sialometry |
44 | 3D-CRT | Rt: 28.3 Gy Lt: 27.9 Gy |
6 W: 35%, 6 M: 47%, 12 M: 69% |
| Roesink et al. (2001)16 | Sialometry | 174 | 3D-CRT | 40 Gy | 6 W: 35%, 6 M: 50% 12 M: 58% |
| Itonaga et al. | Scintigraphy | 62 | IMRT 3D-CRT |
35.8 Gy | 3 M: 0% 12 M: 58% |
3D-CRT, three-dimensional conformal radiotherapy; IMRT, intensity-modulated radiotherapy.