Methods 28 cases of tubal interstital pregnarcy were examined and analysed by trans abdominal B mode ultraound and Doppler Power Imaging (DPI) .

• 方法 经腹壁应用B超和多普勒功率图(Doppler Power Imag-ing,DPI)对28例输卵管间质部妊娠患者声像图表现进行分析。