Table 3.

Results of cardiac examinations in patients with and without RT-induced SIC at 6 months and 1.5 years after treatment

Factor	6 mo after treatment (n = 19)		1.5 y after treatment (n = 12)
	RT-induced SIC (+)	RT-induced SIC (−)	RT-induced SIC (+)	RT-induced SIC (−)
LVEF (%)	66.9 ± 11.3	53.9 ± 11.6	61.9 ± 8.2	62.5 ± 15.6
CI (L/min/m2)	2.9 ± 0.9	3.1 ± 0.4	2.7 ± 0.8	3.2 ± 1.0
BNP (pg/mL)	46.6 ± 31.1	27.7 ± 17.6	48.1 ± 31.4	40.6 ± 26.8
ECG change (n)
Yes	0	0	0	0
No	11	4	8	4
Pericardial effusion (n)
Yes	9	2	5	2
No	4	4	3	2

Abbreviations: BNP = brain natriuretic peptide; CI = cardiac index; ECG = electrocardiogram; LVEF = left ventricle ejection fraction; RT-induced SIC = radiation therapy-induced signal intensity change.

Continuous variables are presented as mean values ± standard deviation.

Four patients did not undergo ECG at 6 months after treatment.