Clinical Study
Replanning Criteria and Timing Definition for Parotid Protection-Based Adaptive Radiation Therapy in Nasopharyngeal Carcinoma
Table 2
Correlations of factors with parotid (actual) volume and dose.
| Factor | Volume ( value) |
( value) | ( value) | ( value) |
| Age | 0.683 | 0.858 | 0.846 | 0.743 | T stage | 0.690 | 0.862 | 0.883 | 0.716 | N stage | 0.044 | 0.439 | 0.607 | 0.413 | Volume of primary tumor | 0.712 | 0.422 | 0.689 | 0.093 | Volume of metastatic nodes | 0.086 | 0.463 | 0.521 | 0.308 | Treatment method | 0.061 | 0.059 | 0.031 | 0.039 | Initial parotid volume | 0.000 | 0.205 | 0.241 | 0.254 | Initial parotid | 0.549 | 0.226 | 0.286 | 0.002 | Weight loss rate | 0.036 | 0.000 | 0.004 | 0.014 | Reduction of skin separation at C1 level | 0.000 | 0.000 | 0.000 | 0.000 | Reduction of skin separation at C2 level | 0.010 | 0.000 | 0.000 | 0.013 | Reduction of skin separation at C4 level | 0.042 | 0.090 | 0.110 | 0.271 |
|
|