Objective To compare the value of B-mode (B-US) and color Doppler ultrasound (CD-US) in diagnosis of umbilical cord around neck (UCAN).

目的比较B型与彩色多普勒超声(彩超)在诊断胎儿脐带绕颈中的价值。

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Objective To compare the value of B-mode (B-US) and color Doppler ultrasound (CD-US) in diagnosis of umbilical cord around neck (UCAN).

目的比较B型与彩色多普勒超声(彩超)在诊断胎儿脐带绕颈中的价值。

youdao