Two-dimensional echocardiogram revealed localized kinetic abnormalities and mild structural alterations of the right ventricle in 17 (39.5%) of 43 subjects.

二维超声心动图发现43位患者中，有17人（39.5%）出现右心室动力学异常以及轻微结构改变。

youdao

A particularly interesting question is why diseases like cancer become more frequent during ageing, during which structural alterations in the tissues also occur.

一个特别有趣的问题是随着年纪的增大，像肿瘤这样的疾病发生率会越来越高，同时，组织中也发生了结构的改变。

youdao

Radiofrequency catheter ablation (RFCA) was performed on dog's and rabbit's atrium and ventricle to observe the structural alterations of heart muscle with the change of ablation energy.

经导管对犬和兔心房、心室行射频消蚀，观察消蚀后心肌结构的变化及消蚀能量与心肌损伤程度的关系。

youdao

Before you buy, ask if structural alterations have been made, and if so, did the previous owners have consent from the building authorities.

BBC: Living in: Hong Kong