👉 Ballistocardiography is a medical imaging technique that uses X-rays to visualize the heart and lungs in real-time. It involves placing a small, thin catheter (the "ballista") through the skin into the chest cavity, where it passes down the diaphragm to the lungs. The catheter then travels up the right atrium and left ventricle of the heart, imaging the walls, valves, and blood vessels within these structures. This allows for detailed examination of the heart