BioMed Research International / 2014 / Article / Tab 2

Clinical Study

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

Table 2

Dose-volume statistics for targets (average result).

Fractional dose (%)

GTVnx78.2466.3772.622.2599.4
GTVln-L/R71.4360.5968.142.1099.6
CTV168.7761.2765.211.9499.4
CTV264.3655.9658.871.8899.3
CTVln54.1950.0451.421.8299.3

GTVnx: gross target volume; GTVln-L/R: positive neck lymph nodes; CTV1: high-risk region of clinical tumor volume; CTV2: low- risk region of clinical tumor volume; CTVln: lymph node region of clinical tumor volume; : percentage of volume receiving 95% of prescribed dose.