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Echogenicity study of pre- and post-RT parotid glands
| Number of parotid glands (%) | |||||
|---|---|---|---|---|---|
| Pre-RT | 6 months post-RT | 12 months post-RT | 18 months post-RT | 24 months post-RT | |
| Hyperechoic | 42 (100%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
| Isoechoic | 0 (0%) | 26 (61.9%) | 28 (66.7%) | 23 (55.0%) | 17 (40%) |
| Hypoechoic | 0 (0%) | 16 (38.1%) | 14 (33.3%) | 19 (45.0%) | 25 (60%) |
RT: Radiotherapy
