弹性剪切波技术对正常新生儿/婴儿肝脏的定量研究

Quantitative study of elastic shear wave velocity in normal neonatal/infantile liver

目的探讨应用声脉冲辐射力成像技术测量正常新生儿/婴儿肝脏剪切波速度(SWV)的可行性。方法 42例正常新生儿/婴儿按月龄分为0~6个月组(24例)和6~12个月组(18例),测量两组SWV,其中30例在不同取样深度(1.5 cm、2.5 cm、3.5 cm)进行测量,结果进行统计分析。结果 142例正常新生儿/婴儿肝脏SWV为(1.05±0.12)m/s;20~6个月组肝脏SWV为(1.03±0.10)m/s,6~12个月组肝脏SWV为(1.06±0.10)m/s,差异无统计学意义;3不同取样深度(1.5 cm、2.5 cm、3.5 cm)所测SWV之间差异无统计学意义。结论应用声脉冲辐射力成像技术测量正常新生儿/婴儿肝脏SWV是可行的。

Objective To explore the feasibility of shear wave velocity( SWV) measurement in normal neonatal/infantile by acoustic radiation force impulse. Methods Forty-two normal neonatal/infantile were divided into 0~6months old group(n=24) and 6~12 months old group(n=18),and SWV was measured. In 30 normal neonatal/infantile,measurements were done at 1.5 cm,2.5 cm and 3.5 cm depth,and the results were statistically analyzed. Results 1SWV of forty- two normal neonatal / infantile liver was(1. 05 ± 0. 12)m / s;2 SWV of 0 ~ 6 months old group liver was(1.05±0.12)m/s,while SWV of 6~12 months old group was(1.06±0.10)m/s,there was no significant difference. 3There was no statistic difference of SWV according to measurement depth(1.5 cm,2.5 cm and 3.5 cm). Conclusion It is feasible to measure the SWV of normal neonatal/infantile liver by acoustic radiation force impulse.