File:Röntgen rays and electro-therapeutics - with chapters on radium and phototherapy (1910) (14757820182).jpg

Identifier: rntgenrayselectr00kass (find matches)
Title: Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy
Year: 1910 (1910s)
Authors: Kassabian, Mihran Krikor, 1870-1910
Subjects: Electrotherapeutics X-rays Phototherapy Radiology Radiotherapy
Publisher: Philadelphia & London : J.B. Lippincott Company
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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pen screen is used, it should bebrought as close as possible against the part under examination, so as tobring out the shadows more distinctly. Prior to covering the tube, it must be placed in its proper position,preferably with the platinum anode pointing toward the operator 5 thepatient is then placed in front of the excited tube. (The cryptoscope isused in a lighted room.) In order to make a thorough examination theexaminers eyes must get accustomed to the darkened condition of theinterior of this apparatus. When used on a sunny day, only the darkcontour of the part under examination is first seen, gradually giving wayto the more distinct details. Long and frequent examinations by this200 THE PEINCIPLES OF TECHNIC. 201 means tire the eyes, often prodnciug conjunctivitis among operators.For superficial and preliminary examinations this appliance is indispen-sable, but for deep examinations tlie open screen and dark room, with thetubes phosphorescence shielded, are to be recommended.
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Fig. 104.—Detachable fluoroscope and screen. With a cryptoscope only one person is enabled to view the Imagescast upon the screen. When the screen alone is employed a group ofpersons can see the existing conditions, hence, the latters value fordemonstrative purposes. (b) Preparation of the Patient.—Always remove the clothing of thepatient from the part which is to be examined, permitting in someinstances the retention of the under garment, which should, however,always be free from wrinkles. Pins, buttons, and any other metallicstructures which would cast shadows upon the screen must be removed,to prevent an incorrect diagnosis. In surgical cases where fine detail work is demanded, it is necessaryto remove all the garments from the part to be examined, also splints,bandages, and powder dressings, as acetanilid, iodoform, boric acid, andplaster of Paris, all of which produce shadows upon the screen. Theretention of wooden splints, though offering little or no obstruction to therays,

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