If the sonic contrast eddied in the non-echo structure in adnexa area and no waterfall-like echo was observed in the area adjacent to the ipsilateral ovary,the non-echo structure was diagnosed as communicating hydrosalpinx.

• 如果附件区液性暗区可见声学造影剂呈旋涡状流动,且在卵巢附近无瀑布状回声,提示该液性暗区为交通性输卵管积水。