英语语法分析

Methods Echocardiographic features and clinical data of 12 fetuses prenatally diagnosed with DORV were analyzed retrospectively.

方法对12胎dor V胎儿的临床资料及超声心动图特征进行回顾性分析。

Many are fatal if not corrected surgically soon after birth-or, rarely, before birth, if detected prenatally. Abnormalities of the large vessels are usually less serious.

许多心脏畸形症如果在出生后没有马上手术矫正会致死(或还没出生前就已侦测到，这种情况较罕见)，大血管的畸形通常不会太严重。

We also identified infants born at other medical centers who were transferred to Boston Children's Hospital for CCHD and determined if the condition was diagnosed prenatally.

我们同样识别出了那些出生在其他医疗中心，因CCHD而被转移到波士顿儿童医院的被产前诊断为CCHD的婴儿患者。