Roentgenology of cardiac diseases- alive or dead?

The discovery of X-rays by W.C.Roentgen in 1985, was a major landmark in the field of medicine.X-rays were used a lot in earlier days in the diagnosis of cardiac diseases. In the present day cardiology, with the latest & sophisticated imaging modalities available for use,where do cardiac x-rays stand?
Even today, chest x-rays give a lot of clues in diagnosing cardiac diseases, especially:
1. rough assessment of chamber enlargements
2. status of pulmonary vasculature
3. signs of cardiac failure
4. pericardial effusion
5. cardiac calcifications
The classic "straightening of the left heart border" in mitral stenosis or 'boot-shaped heart" in TOF or "water-bottle appearance" of pericardial effusion are beauties of chest x-ray to appreciate.
All these said, the concept of reading and using cardiac x-rays ends at the level of teaching institutions itself & the slow death of cardiac roentgenology is evident by the sheer lack of available textbooks in cardiac roentgenology