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Table 3 Dose-volumetric parameters of organs at risk (median, range); doses specified as physical doses

From: Locally advanced NSCLC: a plea for sparing the ipsilateral normal lung—prospective, clinical trial with DART-bid (dose-differentiated accelerated radiation therapy, 1.8 Gy twice daily) by VMAT

Lung

 

  V 20* ipsilateral (%)

37 (7–64)

  V 20 contralateral (%)

19 (0–52)

  V 20 both lungs (%)

28 (4–53)

  V 5 both lungs (%)

61 (14–100)

  D mean (Gy)

15.0 (3.8–26.0)

Proximal bronchial tree

 

  D mean (Gy)

47.6 (2.8–70.4)

  D max 0.1 ccm (Gy)

82.4 (52.9–95.8)

  V 75 (%)

7 (0–46)

  V 85 (%)

0 (0–32)

Heart

 

  D mean (Gy)

8.6 (0.2–38.5)

  V 5 (%)

33 (0–100)

  V 30 (%)

6 (0–60)

  V 50 (%)

1 (0–28)

Esophagus

 

  D mean (Gy)

22.1 (6.7–43.2)

  D max 0.1 ccm (Gy)

63.8 (30.0–90.7)

  V 60 (%)

2 (0–36)

Spinal cord

 

  D max (Gy)

41.4 (16.7–49.6)

  1. Vx = Volume of an organ exposed to ≥ x Gy