From: Dysphagia in head and neck cancer patients following intensity modulated radiotherapy (IMRT)
Swallowing structures | Current study | Feng et al 2007[21] | Levendag et al* 2007[7] | ||||
---|---|---|---|---|---|---|---|
 |  | Median | Range | Median | Range | Median | Range |
PCs | Volume (cc) | 20 | 11-32 | NA | NA | NA | NA |
 | Dose (Gy) | 59 | 39-66 | 64 | 51-72 | 48 | 6.0-73.0 |
scm | Volume (cc) | 12 | 6-21 | NA | NA | NA | NA |
 | Dose (Gy) | 59.4 | 24-69 | 68 | 57-74 | 51 | 22.0-73.0 |
mcm | Volume (cc) | 3.6 | 1.5-9 | NA | NA | NA | NA |
 | Dose (Gy) | 59 | 37.0-71.5 | 64 | 53-75 | 48 | 11.0-72.0 |
icm | Volume (cc) | 3.7 | 0.9-7 | NA | NA | NA | NA |
 | Dose (Gy) | 53 | 29-73 | 51 | 30-70 | 32 | 6.0-73.0 |
GSL | Volume (cc) | 15.3 | 6.4-23 | NA | NA | NA | NA |
 | Dose (Gy) | 53 | 28-70 | 55 | 22-72 | NA | NA |
eim | Volume (cc) | 5.4 | 0.7-44 | NA | NA | NA | NA |
 | Dose (Gy) | 39 | 16.0-67.8 | 44 | 15-66 | 18 | 3.0-64.0 |