A bright linear echo arises from the atretic tricuspid plane (curved arrow). LA, left atrium. Sp, spine.

明亮的线样回声起源于闭锁的三尖瓣（完全箭头）。

youdao

A bright linear echo arises from the atretic tricuspid plane (curved arrow). LA, left atrium. Sp, spine.

明亮的线样回声起源于闭锁的三尖瓣（完全箭头）。

youdao