Cancer Articles (Dr. S.N White)

What is a fluoroscope?  This is a kind of x-ray in which a special machine ( the fluoroscope ) takes a continuous x-ray so that the doctor can see the movement of internal organs. A fluorescent screen, coated with a special substance, is mounted in front of an x-ray tube. The x-ray shadow is cast on the screen. The fluoroscopic image can be amplified and displayed on a television screen. Fluoroscopy can show the expansion of the lung or a barium liquid passing through a patient's esophagus to his stomach. Fluoroscopic techniques sometimes provide important information which cannot be obtained in any other way. How much radiation exposure will I get from a fluoroscope? Fluoroscopes take longer to perform and often expose you to more radiation than do the conventional x-ray exams recorded on film. There are new machines which give better images with less exposure, particularly those which amplify the light from the fluoroscopic screen and then provide a brighter image on a TV...

Kidney Disorders No other internal organ lends itself so readily to diagnostic study as does the kidney. The techniques of investigation permit direct X ray of all its excretory channels, a complete study of its blood supply, both arteries and veins, and a body section X-ray method for viewing each level of the kidney substance under special magnification techniques. Manipulation techniques allow for the direct insertion of a catheter into the kidney through the external urinary channel. The diagnostic concepts are simple and uncomplicated and allow for high accuracy in diagnosis. One is based on giving the patient an X-ray-visible material that will be conveyed along with the urine so that this pathway is visualized. The manipulative techniques involve retrograde instrumentation from where the urine is voided to where it is formed. These diagnostic studies, for the most part, can be performed under local anesthesia, so there is no disability thereafter and minimal loss of time. ...