背景和研究目的：内镜超声检查法(EUS)代替诊断性内窥镜逆性胆管造影术(ERC)检查可疑的胆管结石患者。
BACKGROUND AND STUDY AIMS: Diagnostic endoscopic retrograde cholangiography (ERC) is being replaced by endoscopic ultrasonography (EUS) in patients with suspected bile duct stones.
用超声进行组织弹性定征的方法有四种：图像检查法、振动测量法、静态应变测量法和参数识别法。
There are four methods for ultrasonic characterization of tissue elasticity: imaging inspection techniques, vibration velocity measurements, quasi-static strain measurements and parametric methods.
直接排卵监测包括血中循环性激素分析和超声波检查法，通常用于生育力治疗。
Direct ovulation detection, generally used in fertility treatment, involves analyses of circulating hormones in blood and ULTRASONOGRAPHY.
直接排卵监测包括血中循环性激素分析和超声波检查法，通常用于生育力治疗。
Direct ovulation detection, generally used in fertility treatment, involves analyses of circulating hormones in blood and ULTRASONOGRAPHY.
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