telecardiogram
• The difference from the PA chest X-ray is that it is taken from a distance of 180 cm.
• The right atrium makes the lower right edge of the heart in the roentgenogram.
• There is the ascending aorta. In this region, the superior vena cava descending towards the atrium is not normally seen.
• When expanded, it appears as a thin shadow to the right of the mediastinum.
• On the left, there is a convexity made by the aortic arch at the top.
• This is called the aortic knob.
• Atherosclerotic calcific plaques may be seen in this area.
• Below the aortic arch is the normally flat pulmonary conus.
• The convex edge extending from the end of the pulmonary tube to the diaphragm makes the left ventricle.
• The right ventricle sitting on the diaphragm is not visible on the posterior-anterior roentgenogram.
Pericardial Fluid
• The liquid must be at least 200 ml to give an X-ray finding.
• Less fluid can be visualized with echocardiography and CT.
• Significant pericardial fluid creates a tent appearance in the heart.
Direct radiography findings of pericardial fluid
1) Symmetrical growth in the heart
2) Loss of indentations and protrusions on the edges of the heart
3) Increased sharpness of the heart edges
4) The largest transverse diameter of the heart is just above the cardiophrenic angle
5) Enlargement of the heart stem in inpatient x-rays
6) Rapid size increase in the heart
