Materials and Methods: Images obtained with NTHI from 64 patients were compared with that of fundamental imaging(FI)technique.
材料和方法：采用自然组织谐波成像与基波成像（FI）对64例患者的颈动脉硬化斑块进行对比分析。
Methods The image quality of ureter in 169 patients with ureteral calculi was compared between tissue harmonic imaging and fundamental imaging.
方法对169例输尿管结石患者进行基波显像和组织谐波显像对比观察。
Objective: Compared to fundamental imaging (FI), we used native tissue harmonic imaging (NTHI) to improve image quality on regional wall movement of left ventricle in coronary disease.
目的：通过与基波成像(FI)的对比，研究自然组织谐波成像(nthi)对冠心病节段运动观察的改善情况。
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