Table 3.

Stress testing results

Area	MBF [ml/(g*min)] Before RT	MBF [ml/(g*min)] 2 mo after RT	MBF [ml/(g*min)] 8 mo after RT	p-value
Global	5.14 ± 1.49	4.46 ± 1.73	4.47 ± 1.18	1 vs 2 p = 0.036 1 vs 3 p = 0.207
LAD	5.41 ± 1.74	4.52 ± 1.82	4.40 ± 1.38	1 vs 2 p = 0.018 1 vs 3 p = 0.032
Cx	5.04 ± 1.36	4.48 ± 1.81	4.80 ± 1.22	1 vs 2 p = 0.069 1 vs 3 p = 0.937
RCA	4.72 ± 1.45	4.44 ± 1.80	4.41 ± 1.21	1 vs 2 p = 0.375 1 vs 3 p = 0.527
Seg 1	4.73 ± 1.68	4.10 ± 1.85	4.37 ± 1.26	1 vs 2 p = 0.069 1 vs 3 p = 0.897
Seg 2	3.37 ± 1.07	3.24 ± 1.49	3.37 ± 1.14	1 vs 2 p = 0.073 1 vs 3 p = 0.993
Seg 3	3.94 ± 1.50	3.81 ± 1.79	3.62 ± 1.37	1 vs 2 p = 0.689 1 vs 3 p = 0.756
Seg 4	4.82 ± 1.46	4.20 ± 1.71	4.45 ± 1.20	1 vs 2 p = 0.086 1 vs 3 p = 0.414
Seg 5	4.58 ± 1.27	4.63 ± 2.09	4.53 ± 1.02	1 vs 2 p = 0.925 1 vs 3 p = 0.884
Seg 6	4.85 ± 1.20	4.52 ± 1.59	4.69 ± 1.15	1 vs 2 p = 0.29 1 vs 3 p = 0.566
Seg 7	5.23 ± 1.46	4.32 ± 1.85	4.49 ± 1.26	1 vs 2 p = 0.009 1 vs 3 p = 0.05
Seg 8	4.21 ± 1.41	3.66 ± 1.64	3.83 ± 1.21	1 vs 2 p = 0.038 1 vs 3 p = 0.276
Seg 9	3.98 ± 1.24	4.10 ± 1.92	3.91 ± 1.19	1 vs 2 p = 0.718 1 vs 3 p = 0.818
Seg 10	4.89 ± 1.43	4.55 ± 1.76	4.68 ± 1.00	1 vs 2 p = 0.335 1 vs 3 p = 0.518
Seg 11	5.12 ± 1.39	4.49 ± 1.76	4.95 ± 1.12	1 vs 2 p = 0.048 1 vs 3 p = 0.657
Seg 12	5.25 ± 1.47	4.57 ± 1.86	4.84 ± 1.22	1 vs 2 p = 0.056 1 vs 3 p = 0.218
Seg 13	5.59 ± 1.93	4.42 ± 1.83	4.34 ± 1.47	1 vs 2 p = 0.008 1 vs 3 p = 0.011
Seg 14	4.95 ± 1.84	4.41 ± 1.80	4.12 ± 1.33	1 vs 2 p = 0.146 1 vs 3 p = 0.089
Seg 15	5.58 ± 1.78	5.22 ± 1.96	5.04 ± 1.26	1 vs 2 p = 0.385 1 vs 3 p = 0.212
Seg 16	5.58 ± 1.60	4.66 ± 2.01	4.95 ± 1.37	1 vs 2 p = 0.015 1 vs 3 p = 0.181
Seg 17	6.24 ± 2.23	5.14 ± 2.17	4.81 ± 1.87	1 vs 2 p = 0.035 1 vs 3 p = 0.029

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

Mean doses applied to the coronary arteries.