Traditional Culture Encyclopedia - Photography and portraiture - Post-anterior standard of cardiac radiography

Post-anterior standard of cardiac radiography

Answer: c

The left atrium is located at the left rear of the heart, adjacent to the esophagus. When the left atrium expands, it will inevitably squeeze the esophagus. The right anterior oblique radiography of the heart shows that the posterior image of the left atrium is in tangent position, and the esophagus is shown after barium photography. The left atrium can be diagnosed occasionally by observing the signs of esophageal compression.