目的探讨组织谐波成像技术在壶腹周围梗阻的应用价值。
Purpose To investigate the applied value of tissue harmonic imaging (THI) in peri-ampulla obstruction.
组织谐波成像技术能增强左室腔显影亮度获得更好的显影图像。
Conclusions:Tissue harmonic imaging by left side perflurocarbon contrast echocardiography can enhance left side heart chamber opacification brightness and obtain higher quality image.
目的：研究自然组织谐波成像技术对超声图像的影响，旨在提高诊断率。
Objective:To investigate wather native tissue harmonic imaging(NTHI) can improve sonograph and increase diagnosis rate.
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