SS-EPI RS-EPI p-value
No. of patients 8 16
Sex 0.667
Male 2 6
Female 6 10
Mean age (range), years 64.0 (48–76) 55.6 (25–80) 0.191
Location of lesion
Right superior 1 4
Right inferior 2 5
Left superior 1 0
Left inferior 4 7
Size of lesion, mm 19.3(10–25) 19.0 (8–30) 0.92
Comparisons between the SS-EPI and RS-EPI were performed by Chi-square test for sex, and by median test for age and size of lesion. Comparisons between the SS-EPI and RS-EPI were performed by Chi-square test for sex, and by median test for age and size of lesion. Comparisons between the SS-EPI and RS-EPI were performed by Chi-square test for sex, and by median test for age and size of lesion. Comparisons between the SS-EPI and RS-EPI were performed by Chi-square test for sex, and by median test for age and size of lesion.