Results NTHI showed structural confusion fluid dark areas and network topology surrounding portal vein blocked.

结果　自然组织谐波成像能清晰显示门脉海绵样变性,门脉癌阻塞部位周围结构紊乱,呈蜂窝样或迂曲管状结构.

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Objective : To investigate wather native tissue harmonic imaging ( NTHI ) can improve sonograph and increase diagnosis rate.

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.

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Objective : To investigate if tissue harmonic imaging ( THI ) can improve the image quality of choledochus - pancreatic disease.

目的: 观察组织谐波成像 ( THI ) 是否可改善胆总管下段 - 胰腺区域病变的图像质量.

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Purpose: This study is to evaluate microbubble based ultrasonic contrast agent and harmonic imaging on tumor.

目的: 探讨微气泡型声学造影剂及二次谐波成像在肝癌中的应用特点.

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