实用肝脏病杂志2024，Vol.27Issue(4)：511-514,4.DOI:10.3969/j.issn.1672-5069.2024.04.005
一种新型超声显影导管声学特性研究
Acoustic performance of a newly knitted catheter with an improved ultrasonography visibility
摘要
Abstract
Objective This study was conducted to investigate ultrasonography visibility of a newly knitted catheter.Methods Tube wall structure,reflected acoustic signal intensity and ultrasonography visibility in liquid and living animal liver tissue between conventional plastic catheter(n=10)and newly knitted catheter(n=10)were compared by through electron microscopy,hydrophone acoustic signal detection,flume catheter ring experiment and live pig liver implantation.Results Under electron microscope,interlaced polymer fibers were observed in the wall of the newly knitted tube,whose acoustic impedance values were different from those of the tube body,and microbubbles were also observed around the intersections of fibers;hydrophone detection experiments showed that the fundamental and second harmonic signals received by the newly knitted catheter were more evenly distributed and less angle dependent;in the catheter ring experiment,complete display rate was(91.9±1.2)%,echo loss rate was(4.0±0.7)%)and multiple reflection artifact display rate was(4.3±0.9)%,all much superior to conventional plastic catheter(P<0.01);in live pig liver in vivo,the echo intensity,wall continuity and tip development of the newly knitted catheter were much better than those of conventional plastic catheter.Conclusion The newly knitted catheter has stronger ultrasound visibility,which might be validated in clinical application.关键词
超声显影/超声介入/编织导管/声学/体内Key words
Ultrasound visibility/Ultrasound intervention/Knitted catheter/Acoustic performance/In vivo引用本文复制引用
冯谦,王睿,陈重..一种新型超声显影导管声学特性研究[J].实用肝脏病杂志,2024,27(4):511-514,4.基金项目
全军计划生育专项课题(编号:23JSZ20) （编号:23JSZ20）
