Objective: to assess the value of the Acoustic Densitometry (AD) in evaluating the normal liver contrast with the intermittent harmonic imaging.
目的：探讨声学密度定量评价间歇谐波显像在正常肝脏声学造影中的价值。
ObjectiveTo investigate the clinical significance of acoustic densitometry (AD) technology evaluating myocardium changes in patients with rheumatic heart disease.
目的：探讨声学密度定量(AD)技术评价风湿性心脏病患者心肌病变的临床意义。
Objective To evaluate the value of acoustic densitometry (AD) in detecting myocardium damage of the left ventricle secondry to hypoxic pulmonary hypertension (PH).
目的探讨声学密度定量（AD）技术定量评价缺氧肺动脉高压（PH）后左室心肌损害的应用价值。
Objective: to have an acoustic densitometry (AD) analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.
目的：利用实验性兔肝对二次谐波成像中的剂量-效应关系进行声学定量分析。
Purpose: To evaluate the clinical value of tissue doppler imaging (TDI), color kinesis(CK) and acoustic densitometry (AD) in the assessment of non-infarcted regional myocardial function.
目的：采用组织多谱勒成像（TDI）、彩色室壁运动分析（CK）及声学密度测定（AD）评价心梗患者非梗塞区心肌功能的改变。
Objective to quantitatively assess the histological characteristics of infarcted myocardium using acoustic densitometry (AD) and comparing with conventional radionuclide imaging and echocardiography.
目的探讨声学密度定量(AD)技术评价梗死心肌组织特征的临床价值。
Objective to quantitatively assess the histological characteristics of infarcted myocardium using acoustic densitometry (AD) and comparing with conventional radionuclide imaging and echocardiography.
目的探讨声学密度定量(AD)技术评价梗死心肌组织特征的临床价值。
应用推荐