Table 3. SOS, AOS and thickness variation among different ADCs.

SOS
	n	Ave (m/s)	SD
Lung ADC	110	1619.74	76.86
Serous ov ca	38	1595.60	65.02
Signet ring cell ca	108	1584.19	53.35
AOS
	n	Ave (dB/mm)	SD
Lung ADC	166	3.35	2.17
Serous ov ca	39	4.96	2.78
Signet ring cell ca	109	6.27	2.84
Thickness
	n	Ave (um)	SD
Lung ADC	165	7.19	2.51
Serous ov ca	39	6.35	2.45
Signet ring cell ca	108	6.61	1.29