目的应用超声背向散射积分技术定量评价正常兔肾的不同结构。

Objective To assess quantitatively different structure section of healthy rabbit kidneys by the ultrasound integrated backscatter (IBS).

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目的：探讨组织谐波成像（THI）后应用超声背向散射积分（IBS）评价陈旧性心肌梗塞（OMI）心肌残存收缩能力的优点。

Objective:To study integrated backscatter(IBS)by tissue harmonic imaging(THI)to assess myocardial viability in patients with old myocardial infarction(OMI).

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