Ultrasound shear wave elastography of breast lesions: correlation of anisotropy with clinical and histopathological findings

Table 2 Correlation of anisotropy factor (AF) with Clinical Findings

Clinical Findings	AFmax (kPa²/100)	AFmean (kPa²/10)	AFsd (kPa²/10)	AFratio
Palpable (n = 244)	15.71 ± 28.53	19.66 ± 43.56	8.39 ± 16.29^*	17.54 ± 37.46^*
Impalpable (n = 32)	11.00 ± 32.46	12.39 ± 20.31	3.52 ± 8.27	4.78 ± 8.13
Movable (n = 104)	8.27 ± 21.90	13.82 ± 37.69	4.94 ± 13.06	10.52 ± 28.49
Immovable (n = 140)	21.30 ± 31.45^#	25.43 ± 50.92^#	11.43 ± 18.76^#	23.12 ± 42.93^#

*AFsd and AFratio were significantly higher in palpable lesions than in impalpable ones (P = 0.009 and P < 0.001; respectively)
^#AFmax, AFmean, AFsd and AFratio were significantly higher in immovable lesions than in movable ones (P < 0.001, P = 0.006, P < 0.001 and P = 0.002; respectively)

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