Pericardial
Calcium is most dense in the atrioventricular grooves and is seen as thick oblique circles or arcs of calcification. From the grooves, calcification spreads over the surface of the atria/ventricles.Calcium localized to the left AV groove may be mistaken for mitral valve calcification.Pericardial calcification is better seen on a lateral view.
Aortic Valve
This valve lies in the centre of the heart, so that calcification overlaps the spine on the anterior view. On the lateral view, it lies midway between the anterior and posterior cardiac borders,largely anterior to a line drawn from the tracheal bifurcation to the anterior costophrenic angle.As the two sides of diaphragm are rarely at the same level, the lower reference pt should be midway between the domes.
Mitral Valve
On the PA view, mitral valve calcification is seen just to the left of the spine, below the position of the aortic valve. The larger the left atrium, the further leftward and caudal is the position of valve calcification. On the lateral view, the valve lies posteroinferior to the aortic valve, below a line drawn form the tracheal bifurcation to the anterior costophrenic angle.Coronary Arteries Coronary artery calcification is seen as a plaque or a double line. It is most frequently seen on CXR in the proximal part of the left coronary artery.
Calcium is most dense in the atrioventricular grooves and is seen as thick oblique circles or arcs of calcification. From the grooves, calcification spreads over the surface of the atria/ventricles.Calcium localized to the left AV groove may be mistaken for mitral valve calcification.Pericardial calcification is better seen on a lateral view.
Aortic Valve
This valve lies in the centre of the heart, so that calcification overlaps the spine on the anterior view. On the lateral view, it lies midway between the anterior and posterior cardiac borders,largely anterior to a line drawn from the tracheal bifurcation to the anterior costophrenic angle.As the two sides of diaphragm are rarely at the same level, the lower reference pt should be midway between the domes.
Mitral Valve
On the PA view, mitral valve calcification is seen just to the left of the spine, below the position of the aortic valve. The larger the left atrium, the further leftward and caudal is the position of valve calcification. On the lateral view, the valve lies posteroinferior to the aortic valve, below a line drawn form the tracheal bifurcation to the anterior costophrenic angle.Coronary Arteries Coronary artery calcification is seen as a plaque or a double line. It is most frequently seen on CXR in the proximal part of the left coronary artery.
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