Table 3.

CMR measurements compared among controls, baseline, and follow-ups.

Parameters	Controls	FU0	FU1	FU2	FU3
LVEF (%)a	61.95 ± 5.25	62.25 ± 4.55	57.30 ± 3.20	60.97 ± 3.44	62.70 ± 4.78
LVEDV (mL)	129.71 ± 20.79	134.49 ± 24.90	127.27 ± 21.15	125.80 ± 21.63	120.45 ± 19.85
LVESV (mL)	49.44 ± 10.83	51.22 ± 11.09	55.37 ± 10.77	50.98 ± 11.73	48.43 ± 8.91
LVEDVI (mL/m2)	73.28 ± 11.19	77.69 ± 10.27	74.13 ± 8.98	73.11 ± 11.07	71.09 ± 7.81
LVESVI (mL/m2)	27.99 ± 6.21	29.62 ± 5.40	32.39 ± 5.95	29.29 ± 6.17	27.69 ± 3.67
LV mass (g)	82.13 ± 15.63	79.71 ± 18.77	78.56 ± 16.19	76.91 ± 14.45	75.98 ± 13.34
GLS (%)	−15.29 ± 2.22	−15.53 ± 1.68	−14.13 ± 1.58	−14.83 ± 1.40	−15.05 ± 1.57
GRS (%)	34.10 ± 6.23	34.18 ± 4.84	30.71 ± 5.19	32.52 ± 3.64	33.49 ± 5.96
GCS (%)	−19.40 ± 2.20	−19.49 ± 1.69	−18.23 ± 1.88	−18.73 ± 1.30	−19.18 ± 1.87
Global T1 value	1,201.51 ± 37.92	1,212.86 ± 26.59	1,224.61 ± 39.13	1,243.47 ± 40.43	1,241.37 ± 26.02
Global T2 value	40.65 ± 2.38	39.85 ± 1.95	39.64 ± 1.98	41.13 ± 2.64	39.54 ± 1.70

CMR, cardiac magnetic resonance; LV, left ventricular; LVEF, left ventricle ejection fraction; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVEDVI, left ventricular end-diastolic volume index; LVESVI, left ventricular end-systolic volume index; GLS, global longitudinal strain; GCS, global circumferential strain; GRS, global radial strain; FU0, baseline; FU1, 2 days post radiotherapy; FU2, 3 months post radiotherapy; FU3, 6 months post radiotherapy.

Unless otherwise specified, data are mean ± SD. Data were compared among baseline and follow-ups by using the Friedman rank test with post-hoc test with Bonferroni correction. Data were compared between controls and baseline by using Student's t-tests or Mann–Whitney U test.

After using a post-hoc test with Bonferroni correction, none of those parameters had a significant difference among baseline and follow-ups.

^a P < 0.05 using Friedman rank test compared with baseline.