CAJ | 학술논문

目的探讨声辐射力脉冲成像(acoustic radiation foroe impulse,ARFI)评价兔下腔静脉重新开放后肝弹性的改变.方法选择7只日本大白兔经耳缘静脉麻醉后开腹,游离兔下腔静脉,运用ARFI技术分别于下腔静脉夹闭前、夹闭后20 min及再开放后20 min对兔右肝同一位部进行检查,比较兔肝组织在不同状态下的弹性改变.结果下腔静脉夹闭前及重新开放后20 min兔右肝ARFI测值组织剪切波速度(Vs)均明显高于下腔静脉夹闭后[(1.28±0.13)m/s对(0.91±0.14)m/s,P<0.001;(1.24±0.16)m/s对(0.91±0.14)m/s,P<0.002],下腔静脉重新开放后Vs稍低于下腔静脉夹闭前,但差异尤统计学意义(P>0.05).结论兔下腔静脉夹闭20 min后再开放对肝弹性影响不大.
목적 탐토성복사력맥충성상(acoustic radiation foroe impulse,ARFI)평개토하강정맥중신개방후간탄성적개변.방법 선택7지일본대백토경이연정맥마취후개복,유리토하강정맥,운용ARFI기술분별우하강정맥협폐전、협폐후20 min급재개방후20 min대토우간동일위부진행검사,비교토간조직재불동상태하적탄성개변.결과 하강정맥협폐전급중신개방후20 min토우간ARFI측치조직전절파속도(Vs)균명현고우하강정맥협폐후[(1.28±0.13)m/s대(0.91±0.14)m/s,P<0.001;(1.24±0.16)m/s대(0.91±0.14)m/s,P<0.002],하강정맥중신개방후Vs초저우하강정맥협폐전,단차이우통계학의의(P>0.05).결론 토하강정맥협폐20 min후재개방대간탄성영향불대.
Objective To evaluate the change of elasticity of rabbit liver after inferior vena cava reopening using acoustic radiation force impulse (ARFI). Methods Seven health Japanese white big ear rabbits were used for this study. After intravenous anesthesia via marginal vein,inferior vena cava of rabbit was separated. The elasticity of right liver of rabbits was detected during the stages of baseline,20 minutes after clamping reopening of inferior vena cava using acoustic radiation force impulse(ARFI) respectively.The elasticity of rabbit liver during difference stage was compared. Results Compared with 20 minutes after inferior vena cava clamping,the shear-wave velocity(Vs) of right livers of rabbits was significantly higher than that before inferior vena cava clamping and reopening [(1.28 + 0. 13)m/s vs (0.91 + 0. 14)m/s, P 0. 01 and (1.24 + 0.16)m/s vs (0. 91 + 0.14)m/s, P<0.002]. While Vs of rabbit liver during inferior vena cava was slightly lower than that during baseline stage, but there was no significant difference of Vs between these two stages. Conclusions Elasticity of liver within 20 minutes inferior vena cava clamping is reversible after reopening vena cava.