Q. Investigation of aortic regurgitation by Chest X–Ray?

Left ventricular dilatation produces cardiomegaly on chest radiograph. Ascending aorta is often prominent. Egg shell calcification of ascending aorta suggests Leutic etiology while widened mediastinum makes one suspect aortic dissection. Valve calcification is better seen on fluoroscopy. With left ventricular failure obvious radiological signs may emerge. Mild or even moderate aortic regurgitation may produce no radiological signs.