Table 5.

Correlations between doses applied to the coronary arteries as assessed by the RT planning system and MBF changes 2 and 8 months after RT

	MBF changes 2 months after RT		MBF changes 8 months after RT
r	p-value	r	p-value
Heart Dmin	−0.22	0.455	−0.08	0.781
Heart Dmax	−0.01	0.983	−0.28	0.336
Heart Dmean	−0.35	0.226	0.07	0.808
LAD Dmin	−0.57	0.032	0.41	0.141
LAD Dmax	−0.02	0.937	−0.26	0.365
LAD Dmean	−0.03	0.912	−0.29	0.316
Cx Dmin	−0.45	0.105	0.30	0.306
Cx Dmax	−0.42	0.137	0.24	0.400
Cx Dmean	−0.44	0.116	0.28	0.332
RCA Dmin	−0.07	0.824	0.12	0.691
RCA Dmax	−0.28	0.335	0.42	0.133
RCA Dmean	0.06	0.833	0.09	0.765

Cx, left circumflex artery; LAD, left anterior descending artery; MBF, myocardial blood flow; RCA, right coronary artery; RT, radiotherapy.