目的探讨超声背向散射积分(IBS)对急、慢性肾病的诊断价值。

Objective To explore the value of the ultrasound integrated backscatter (IBS) in diagnosing acute or chronic renal parenchyma disease.

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目的：建立心肌慢性缺血动物模型，探讨超声背向散射积分（IBS）和多普勒组织成像（DTI）技术检测慢性心肌缺血的价值。

Objective: To establish porcine chronic ischemic myocardium model and to evaluate ultrasonic integrated backscatter(IBS) and Doppler tissue imaging(DTI) in detecting this model.

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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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