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Table 3 Treatment characteristics

From: Outcomes of proton therapy for non-small cell lung cancer in patients with interstitial pneumonia

Characteristics

Median

IQR

PTV

  

Volume (ml)

112.0

(56.1–246.3)

D2% (%)

102.7

(101.9–103.8)

D50% (%)

100.1

(98.7–100.5)

D95% (%)

94.7

(85.8–97.4)

D98% (%)

90.2

(79.9–94.1)

CI

1.34

(0.87–1.48)

HI

0.13

(0.09–0.23)

Lung-GTV

  

MLD (GyRBE)

7.9

(3.4–11.6)

V5GyRBE (%)

22.2

(11.1–31.3)

V10GyRBE (%)

19.5

(8.8–27.3)

V20GyRBE (%)

15.8

(6.4–20.7)

V40GyRBE (%)

8.0

(3.8–13.3)

  1. IQR interquartile range, PTV planning target volume, D2%–D98% the dose received by x% of the volume of the PTV, CI conformity index, HI homogeneity index, GTV gross tumor volume, MLD mean lung dose, RBE relative biological effectiveness, V5GyRBE,V10GyRBE,V20GyRBE, and V40GyRBE volume receiving a dose of ≥ 5/10/20/40 GyRBE