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Table 4 Correlations between the DVH a -based parameters and acute grade ≥2 RP b in present study (n = 23)

From: Stereotactic body radiation therapy for post-pulmonary lobectomy isolated lung metastasis of thoracic tumor: survival and side effects

  Grade ≥2 RIP (n = 8) Grade 0–1 RIP (n = 15) p value
mean ± SD mean ± SD
Total Lungs    
V5 (%)c 36.0 ± 6.0 35.0 ± 4.0 0.141
V10 (%)c 16.0 ± 4.0 14.0 ± 2.0 0.125
V20 (%)c 4.8 ± 2.0 4.4 ± 1.2 0.696
V30 (%)c 2.0 ± 1.0 2.0 ± 1.0 0.990
MLD (Gy) d 3.8 ± 1.6 3.7 ± 1.3 0.077
Contralateral lungs    
V5 (%) 26.0 ± 7.0 25.0 ± 9.0 0.421
V10 (%) 18.0 ± 7.0 16.0 ± 9.0 0.277
V20 (%) 3.2 ± 1.1 2.4 ± 0.9 0.210
V30 (%) 1.6 ± 0.5 1.6 ± 0.6 0.992
MLD (Gy) 2.8 ± 0.6 2.6 ± 0.2 0.483
Ipsilateral lungs    
V5 (%) 51.0 ± 9.1 44.0 ± 4.0 0.034
V10 (%) 22.0 ± 6.0 19.0 ± 4.0 0.273
V20 (%) 6.0 ± 2.8 5.2 ± 2.2 0.454
V30 (%) 2.6 ± 1.0 2.8 ± 1.1 0.824
MLD (Gy) 5.9 ± 1.3 5.7 ± 1.1 0.290
PTV volume (cm 3 ) 59.0 ± 9.6 45.0 ± 9.9 0.039
  1. a: dose-volume histogram; b: radiation pneumonitis; c: the percentage of the lung volume that received more than 5, 10, 20 and 30 Gy irradiation dose, respectively; d: mean lung dose.
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BMC Cancer

ISSN: 1471-2407

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