Chest X Ray

How Do They Work? They are a form of electromagnetic radiation. X-rays have high energy and short wavelength and are able to pass through tissue. On their passage through the body, the denser tissues, such as the bones, will block more of the rays than will the less dense tissues, such as the lung. A special type of photographic film is used to record X-ray pictures. The X-rays are converted into light and the more energy that has reached the recording system, the darker that region of the film will be. This is why the bones on an X-ray image appear whiter (less energy passes through) than the lungs (more energy passes through).

How to take an X Ray The radiographer, an individual specially trained to perform radiology examinations, positions the patient on the x-ray table and places the x-ray film holder or digital recording plate under the table in the area of the body being imaged. When necessary, sandbags, pillows or other positioning devices will be used to maintain the proper position. A lead apron may be placed over pelvic area or breasts when feasible to protect from radiation. Patients hold very still and may be asked to keep from breathing for a few seconds while the x- ray picture is taken to reduce the possibility of a blurred image. The radiographer will walk behind a wall or into the next room to activate the x-ray machine. The patient may be repositioned for another view and the process is repeated.

Normal Chest X Ray

Lung Cancer

Bronchitis

Disease which may be diagnosed by Chest Xray Pneumonia Bronchitis Emphysema Lung cancer Tuberculosis Pleural Effusion