General Head and Neck Constraints

Question 1

Parotid Gland

Answer 1

mean<20Gy (1 gland) (QUANTEC)

Question 2

Submandibular gland(s)

Answer 2

mean<35Gy (QUANTEC)

Question 3

Larynx

Answer 3

mean<27%,

max 63-66Gy (when risk of tumor involvement is limited) (QUANTEC)

Question 4

TMJ/mandible

Answer 4

max 70Gy (if not possible, then V75<1cc) (QUANTEC)

Question 5

Oral Cavity non-oral cavity cancer:

Answer 5

mean60Gy (RTOG 0920)

Question 6

Oral cavity cancer:

Answer 6

mean<1cc, 
max 65Gy (RTOG 0920)

Question 7

Esophagus

Answer 7

V45<33% (RTOG 0920)

Question 8

Pharyngeal Constrictors

Answer 8

Mean<50Gy (QUANTEC)

Question 9

Thyroid

Answer 9

V26<20% (Johns Hopkins)