PA: posteroanterior radiograph(后前位)
LL: left lateral radiograph(左侧位)
RAO: right anterior oblique radiograph(右前
斜位)cardiac atria are distinguished from
In the pathological states, the heart can be deformed in the mitral (二尖 瓣型), aortic(主动脉型), and general enlarged (普大型) type separately.
A type of the heart diseases. For example, The mitral type of the heart may originate from pulmonary heart diseases, rheumatic heart diseases, congenital heart diseases of shunt from left to right. The aortic type of the heart may come from hypertensive heart diseases, rheumatic heart diseases (involing aortic valves), congenital heart diseases, cardiomyopathy. The general enlarged type of the heart may come from cardiomyopathy, pericardial effusion.
心轴角:右心缘大血管与右房交界点至心尖的连线, 与水平线的夹角。