Table 2.

Dosimetric characteristics of SBRT treatments

Dosimetric parameter	Median (range)
PTV V100%Rx (n = 8)	95% (range, 95-99.5)
PTV minimum (n = 8)	90.5%Rx (range, 85.6-95)
Chest wall V30 Gy (n = 8)	0.2% (range, 0.0-1.2)
Bronchial tree/trachea V15 Gy (n = 3)	0.0% (range, 0.01-0.3)
Bronchial tree/trachea D0.035cc (n = 3)	5.1 Gy (range, 3.2-14.8)
Spinal cord D0.035cc (n = 8)	2.8 Gy (range, 2-4.9)
Esophagus/stomach D0.035cc (n = 8)	3.3 Gy (range, 0.4-22)
Heart D0.035cc (n = 8)	3.1 Gy (range, 0.2-31.4)
Lungs V5 Gy (n = 8)	6.8% (range, 1.5-16.7)
Lungs V10 Gy (n = 8)	2.8% (range, 0.7-4.1)
Lungs V20 Gy (n = 8)	1.0% (range, 0.3-1.2)
Lungs mean dose (n = 8)	1.3 Gy (range, 0.3-2.3)
Ribs (uninvolved) D0.035cc (n = 8)	30.5 Gy (range, 4.1-32.4)
Skin D0.035cc (n = 8)	11.3 Gy (range, 8.0-21.4)

Abbreviations: PTV = planning target volume; SBRT = stereotactic body radiation therapy.