摘要
目的:采用析因设计分析压力大小及压放频率对正常睾丸超声弹性成像(UE)声像图的影响。方法:筛选305例睾丸正常受检者行UE检查,改变压力大小及压放频率,分析压力及压放频率对感兴趣区(ROI)内组织应变均值(Mean值)的影响。结果:压力及压放频率对ROI内Mean值均有影响,二者存在交互作用;增大压力,Mean值降低,组织表观硬度"增大",减小压力,Mean值增大,组织表观硬度"减小";不同压力下,压放频率对ROI内Mean值的影响不同,但在中等压力,中、高频压放及高压力,低或高频压放时,频率对Mean值无明显影响。结论:UE声像图受压力大小及压放频率影响,在睾丸组织UE检查过程中,中等压力、中-高频压放得到的UE声像图更稳定。临床检查及科研中应保证压力及压放频率的一致性,以减小操作带来的测量误差。
Objective： To approach the influence of pressure and frequency in testicle UE sonogram in healthy person with factorial design.Methods： 305 healthy individuals were observed with UE under different pressures or frequencies,in order to analyze the differences in mean value of ROI under different conditions.Results： Both pressure and frequency can influence Mean ROI and it shows interaction between pressure and frequency;Mean increased when pressure reduced and tissue looks softer;Mean reduces when pressure increased and tissue looks harder.Different pressures,frequencies have different effect on mean ROI.Under medium pressure,it shows no significant differences in mean value between medium frequency and high frequency.Under high pressure,it shows no significant differences in mean between low frequency and high frequency.Conclusions： UE sonogram is affected by both pressure and frequency;In testicles,intermediate frequency and intermediate pressures make the sonogram steady.Pressure and frequency should be consistent in clinical and research,in order to reduce measurement error brought by operation.
出处
《中国临床医学影像杂志》
CAS
2013年第5期349-352,共4页
Journal of China Clinic Medical Imaging
基金
广东省科技计划项目资助(编号:2012B061700045)
关键词
睾丸
超声检查
多普勒
彩色
Testis
Ultrasonography
Doppler
color
