BioMed Research International / 2014 / Article / Tab 3

Clinical Study

Clinical Outcomes and Prognostic Factors of 695 Nasopharyngeal Carcinoma Patients Treated with Intensity-Modulated Radiotherapy

Table 3

Dose-volume statistics for organs at risk.

OARParametersMean (range)

Brain stem49.5 (45.6–54.7)
Spinal cord37.4 (32.1–45.5)
Optical chiasm45.8 (30.3–53.6)
Optical nerves
 L42.8 (26.9–48.9)
 R43.9 (33.6–53.5)
Parotid gland
 L31.7 (20.2–33.9)
 R32.1 (23.5–35.7)
Temporomandibular joints
 L40.4 (37.5–45.5)
 R39.1 (30.8–42.8)

OAR: organs at risk; : maximum point dose; : maximum dose to 1% volume.