What To Look For On A Chest Xray Slideshow On the other hand, the lung tissue, which is mostly composed of air, will allow most of the radiation to pass through, developing the film to a darker appearance. the heart and the aorta will appear whitish, but usually less bright than the bones, which are more denser. Find the perfect healthy lungs x ray stock photo. huge collection, amazing choice, 100+ million high quality, affordable rf and rm lung x unhealthy ray images. no need to register, buy now!. who were found to have pleural plaques on x-ray (these are areas of calcification on the lung lining caused by asbestos) the average age of Chestxray Abnormalities Mediastinal Abnormalities Chestx-ray: a chestx-ray may be performed prior to the procedure if one has not already been obtained in the previous 24 to 48 hours. based on your medical condition, your doctor may request other specific preparation. what happens during a lung scan? you may have a lung scan as an outpatient or as