Tomayto, tomahto: prescription dose and mean heart dose in evaluating the cardiac impact of involved-field radiation therapy for Hodgkin lymphoma survivors

Figures & data

Table 1. The coefficient of determination for cardiac substructures with mean heart RT dose and prescription RT dose in patients treated for mediastinal Hodgkin lymphoma.

Substructure	Coefficient of determination for mean heart RT dose	Coefficient of determination for prescription RT dose
Left atrium	0.57	0.74
Right atrium	0.37	0.86
Left ventricle	0.84	0.04*
Right ventricle	0.89	0.32
Right coronary artery	0.57	0.59
Left anterior descending artery	0.77	0.05*
Circumflex artery	0.72	0.31
composite Coronary arteries	0.79	0.23
AV node	0.37	0.85
SA node	0.36	0.83
Aortic valve	0.34	0.86
mitral valve	0.63	0.36
Pulmonic valve	0.28	0.86
Tricuspid valve	0.35	0.85
Composite cardiac valves	0.53	0.79

*Indicates that linear relationship did not meet statistical significance at a significance level of p < .05.

Figure 1. Scatterplot showing the coefficient of determination for cardiac substructures for prescription dose and mean heart dose.