Predictors of heart and lung dose in left-sided breast cancer treated with VMAT relative to 3D-CRT: A retrospective study
Fig 3
Correlation between PJ index and dose metrics of left lung in 3D-CRT and VMAT.
a) PJ index and MLLD (r = 0.697 for 3D-CRT, p < 0.01; r = 0.676 for VMAT, p < 0.01); b) PJ index and (V5 of left lung: r = 0.568 for 3D-CRT, p = 0.1; r = 0.407 for VMAT, p < 0.01); c) PJ index and V10 of left lung (r = 0.663 for 3D-CRT, p < 0.01; r = 0.495 for VMAT, p < 0.01); d) PJ index and V20 of left lung (r = 0.659 for 3D-CRT, p < 0.01; r = 0.6 for VMAT, p < 0.01); e) PJ index and V30 of left lung (r = 0.66 for 3D-CRT, p < 0.01; r = 0.578 for VMAT, p < 0.01); f) PJ index and V40 of left lung (r = 0.691 for 3D-CRT, p < 0.01; r = 0.594 for VMAT, p < 0.01).