Objective To evaluate the application value of ultrasound gel pad in shear wave elastography(SWE)of rabbit testes.Methods From September 2020 to April 2021,30 healthy male rabbits were included,aged 5 to 6 months,with a body weight of(2.52±0.18)kg.Their 60 testes were studied by SWE using ultrasound gel pad and thick ultrasound transmission gel respectively in the Second Affiliated Hospital of Guangzhou Medical University.Ten consecutive measurements of shear wave velocity(SWV)were obtained in the central zone of the largest standard transverse axis view of testicular parenchyma,and the mean,standard deviation,and interquartile range/median were calculated and recorded.Paired sample t-test,one-way ANOVA,Pearson's chi-squared test,and intraclass correlation coefficient(ICC)were applied.Results In the ultrasound gel pad group,the mean and standard deviation of the ten SWV measurements were significantly lower than those in the thick ultrasound transmission gel group[(1.67±0.16)m/s vs.(2.46±0.20)m/s,(0.09±0.03)m/s vs.(0.22±0.08)m/s],with statistically significant differences(t=26.617 and 12.965,both P＜0.001).With the interquartile range/median ≤10％as the standard,the number of cases being in conformity the standard in the ultrasound gel pad group was significantly larger than that in the thick ultrasound transmission gel group[80.0％(48/60)vs.23.3％(14/60)],with a statistically significant difference(x2=38.576,P＜0.001).Two ultrasound physicians obtained three consecutive SWV measurements in the central zone of the largest standard transverse axis view of normal testicular parenchyma using an ultrasound gel pad,demonstrating good consistency(ICC=0.823,95％CI 0.712-0.892,P＜0.001).Conclusion The utilization of ultrasound gel pad in SWE of normal testes yields a clear enhancement in image quality,leading to increased stability and the reproducibility of measured values.
关键词
剪切波弹性成像/睾丸/导声垫/动物实验
Key words
Shear wave elastography/Testes/Ultrasound gel pad/Animal experiment
维普
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