Radiography, x-ray therapeutics and radium therapy (1915) (14757667885)

Identifier: radiographyxrayt00knoxuoft (find matches)
Title: Radiography, x-ray therapeutics and radium therapy
Year: 1915 (1910s)
Authors: Knox, Robert, 1868-1928
Subjects: Radiography Radiotherapy X-rays
Publisher: London : A. & C. Black
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: MSN



Text Appearing Before Image:
Fig. 179.—-Coucli fitted with kiduey compressor. It is possible by this method to get small accurate pictures of the kidneys,bladder, and ureters. A later improvement of this compressor is the
Text Appearing After Image:
Fig. 180.—X-Ray coucli to illustrate raethod of compression. addition of a stereoscopic movement to the apparatus, thus enabling stereo-scopic pictures of the urinary tract to be taken. 238 RADIOGKAPHY In all cases it is important so to compress the parts that a good radio-graph is obtained with long or short exposures. The shorter the exposurethe better is the result. Where possible, the patient should be instructedto hold his breath during the exposure. WTien this does not exceed 20 or30 seconds, it is possible with a little practice for the patient to hold hisbreath. In this way two pictures may be obtained, (1) at the end of in-spiration, and (2) at the end of expiration. AVhen the compression is perfect,it is possible to get good radiographs with exposures of one or two minutes. The next important point in the taking of good radiographs lies in themanagement of the X-ray tube. Here, again, a great deal depends uponthe operator and his knowledge of the apparatus at his command.