Table 1 Spearman’s rank correlation test
From: Radiotherapy dose distribution prediction for breast cancer using deformable image registration
| Â | PTV | Ipsilateral lung | Heart | Lung | Spinal cord |
|---|---|---|---|---|---|
Image similarity metric | |||||
 \(\rho\) | 0.378* | 0.307* | 0.191* | 0.431* | 0.395* |
 p | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
PTV DSC | |||||
 \(\rho\) | 0.365* | 0.333* | 0.275* | 0.408* | 0.392* |
 p | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
Ipsilateral lung OVH MSD | |||||
 \(\rho\) | 0.197* | 0.236* | 0.155* | 0.215* | 0.005 |
 p | 0.000 | 0.000 | 0.000 | 0.000 | 0.914 |
Heart OVH MSD | |||||
 \(\rho\) | 0.142* | 0.160* | 0.102* | 0.172* | 0.234* |
 p | 0.005 | 0.001 | 0.041 | 0.001 | 0.000 |
PTV length difference | |||||
 \(\rho\) | 0.293* | 0.338* | 0.355* | 0.249* | 0.209* |
 p | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
\({\text{P}}_{\text{ovz}}\) | |||||
 \(\rho\) | 0.191* | 0.428* | 0.395* | 0.369* | 0.356* |
 p | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
\(J_{{1\_{\text{diff}}}}\) | |||||
 \(\rho\) | 0.135* | 0.280* | 0.131* | 0.343* | 0.269* |
 p | 0.007 | 0.000 | 0.009 | 0.000 | 0.000 |
\(J_{{ 2 {\text{\_diff}}}}\) | |||||
 \(\rho\) | 0.111* | 0.222* | 0.095 | 0.316* | 0.239* |
 p | 0.026 | 0.000 | 0.057 | 0.000 | 0.000 |
\(J_{{ 3 {\text{\_diff}}}}\) | |||||
 \(\rho\) | 0.088 | 0.065 | 0.022 | 0.180* | 0.289* |
 p | 0.080 | 0.196 | 0.658 | 0.000 | 0.000 |
\(B_{{ 3 {\text{\_diff}}}}\) | |||||
 \(\rho\) | 0.137* | 0.087 | 0.054 | 0.240* | 0.314* |
 p | 0.006 | 0.081 | 0.282 | 0.000 | 0.000 |
\(B_{{ 4 {\text{\_diff}}}}\) | |||||
 \(\rho\) | 0.192* | 0.221* | 0.165* | 0.351* | 0.350* |
 p | 0.000 | 0.000 | 0.001 | 0.000 | 0.000 |
| Â | 0.8 DSC | 1.0 DSC | 33 \(\gamma\) | 55 \(\gamma\) |
|---|---|---|---|---|
Image similarity metric | ||||
 \(\rho\) | − 0.468* | − 0.484* | − 0.282* | − 0.392* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
PTV DSC | ||||
 \(\rho\) | − 0.663* | − 0.655* | − 0.271* | − 0.321* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
Ipsilateral lung OVH MSD | ||||
 \(\rho\) | − 0.235* | − 0.281* | − 0.249* | − 0.242* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
Heart OVH MSD | ||||
 \(\rho\) | − 0.195* | − 0168* | − 0.065 | − 0.087 |
 p | 0.000 | 0.001 | 0.195 | 0.084 |
PTV length difference | ||||
 \(\rho\) | − 0.405* | − 0.327* | − 0.343* | − 0.319* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
\({\text{P}}_{\text{ovz}}\) | ||||
 \(\rho\) | − 0.455* | − 0.368* | − 0.282* | − 0.271* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
\(J_{{ 1 {\text{\_diff}}}}\) | ||||
 \(\rho\) | − 0.231* | − 0.245* | − 0.174* | − 0.203* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |
\(J_{{ 2 {\text{\_diff}}}}\) | ||||
 \(\rho\) | − 0.214* | − 0.231* | − 0.152* | − 0.182* |
 p | 0.000 | 0.000 | 0.002 | 0.000 |
\(J_{{ 3 {\text{\_diff}}}}\) | ||||
 \(\rho\) | − 0.193* | − 0.202* | − 0.051 | − 0.089 |
 p | 0.000 | 0.000 | 0.314 | 0.075 |
\(B_{{ 3 {\text{\_diff}}}}\) | ||||
 \(\rho\) | − 0.223* | − 0.201* | − 0.066 | − 0.132* |
 p | 0.000 | 0.000 | 0.186 | 0.008 |
\(B_{{ 4 {\text{\_diff}}}}\) | ||||
 \(\rho\) | − 0.348* | − 0.310* | − 0.200* | − 0.243* |
 p | 0.000 | 0.000 | 0.000 | 0.000 |