Table 2.

Dosimetric parotid gland data at planning

		Median	Range
Volume at pl	Average	33.1	15.9/59.4
(cc)	H	32.6	16.0/58
	L	32.9	15.9/63.5
Mean D at pl	Weighted avr	35.7	17.5/57.4
(Gy)	H	39.9	27.4/70.4
	L	33.1	4.5/62.3
Shrinkage at mid tmt	Weighted avr	19.6	1.2/52.1
(%)	H	21.2	1.8/52.7
	L	19.0	0.7/51.6

Abbreviations: pl planning, avr average, D dose, H/L side that receives the higher (H) or lower (L) mean dose at planning within a given patient.