通过X线可以看到较少见的瓣膜钙化环。多剖开的心脏可同看到白色的瓣膜钙化环。
A relatively benign and not too common condition that may show up on radiographic studies is mitral valve ring calcification. This produces a doughnut-shaped ring of calcification around the mitral valve annulus. The white circle here represents such a ring that has been sectioned as the heart was opened.