calcification, or any other cause of
thickening/fibrosis or calcification of the valve leaflets.
6
1. Echocardiographic Imaging
In severe acute AR, the LV is not dilated and the sudden rise in LV end-diastolic pressure may cause the MV to close prematurely['premətʃə(r)lɪ] , best documented with an M-mode. In chronic AR, echocardiography is in tracking the changes in LV geometry [dʒiˈɒmətri] (progessive increase in LV volume) and function (progressive worsening) due to the protracted [prəˈtræktɪd] LV volume overload.
AORTIC REGБайду номын сангаасRGITATION
1
vocabulary
• • • • • • • perforation [ˌpɜ:fəˈreɪʃn] 穿孔 prematurely['premətʃə(r)lɪ],过早的 Anatomy [əˈnætəmi] geometry [dʒiˈɒmətri],几何学,构成 Aortic[eɪ'ɔ:tɪk] protracted [prəˈtræktɪd],延长的 senile [ˈsi:naɪl] 老年性的 orifice [ˈɒrɪfɪs] ,孔,洞,反流口 rheumatic [ruˈmætɪk]风湿性 surrogate [ˈsʌrəgət] 代理、代表 morphology [mɔ:ˈfɒlədʒi] 形态学 proximal [ˈprɒksɪməl],近端的 commissural disruption [dɪs'rʌpʃn] 连合中断,中断;分裂,瓦解;破裂,毁坏