Retrospective Study
Copyright ©The Author(s) 2023.
World J Clin Cases. Nov 6, 2023; 11(31): 7553-7561
Published online Nov 6, 2023. doi: 10.12998/wjcc.v11.i31.7553
Table 1 Ultrasonographic characteristics of benign and malignant tumors

Echo
Capsule
Blood flow resistance index
Form
Blood flow signal display rate
Rules
Irregularity
Yes
No
Clear
Not clear
Benign tumor55546140.79 ± 0.0554615 (25%)
Malignant tumor84212380.44 ± 0.4954550 (100%)
χ2/t63.80930.35024.01070.18963.462
P value0.0000.0000.0000.0000.000