Target Volume Determination 2015

How do we define the CTV of elective neck?

Imaging cervical lymph nodes: radiological classification

• 7 node levels (I-VII) and retropharyngeal nodes. • CT-based node level boundaries. • Diagnosis. • Surgery. • Not for radiotherapy.

Som et al. Arch Otolaryngol Head Neck Surg 1999;125:388- 96.