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Table 1 Baseline features of breast fibroadenomas treated with 1 session (group 1) or with 2 sessions (group 2) of HIFU

From: Long-term efficacy of ultrasound-guided high-intensity focused ultrasound treatment of breast fibroadenoma

  Group 1 Group 2 P value
(n = 19) (n = 7)
Age (years), mean ± SD 29.4 ± 10.8 26.6 ± 9.2 0.549a
BMI (kg/m2), mean ± SD 20.5 ± 3.4 20.0 ± 2.1 0.693a
Side, n (%)
 left 6 (31.6) 3 (42.9) 0.945b
 right 13 (68.4) 4 (57.1)  
Quadrant, n (%)
 up-out 8 (42.1) 2 (28.6) 0.454b
 up-in 6 (31.6) 3 (42.9)  
 low-in 3 (15.8) 0 (0.0)  
 low-out 2 (10.5) 2 (28.6)  
Depth (mm), mean ± SD 15.3 ± 3.9 15.9 ± 3.6 0.710a
Basal volume (mL), median (range) 1.82 (0.35–5.95) 8.14 (1.53–10.39) 0.0140c
Color flow Doppler pattern (%)
 0 8 (42.1) 2 (28.5) 0.194b
 I 8 (42.1) 1 (14.3)  
 II 2 (10.5) 3 (42.9)  
 III 1 (5.3) 1(14.3)  
  1. aStudent’s t-test, bChi-square-test, cMann-Whitney U test