1、Transthoracic echocardiography is a common procedure used to diagnose and monitor heart conditions.
穿过胸部的超声心动图是一种常见的诊断和监测心脏状况的方法。

2、The doctor performed a transthoracic biopsy to obtain a tissue sample from the lungs.
医生进行了穿胸活检，以获取肺部的组织样本。