File:The Röntgen rays in medical work (1907) (14777339503).jpg

Identifier: rntgenraysinmedi1907wals (find matches)
Title: The Röntgen rays in medical work
Year: 1907 (1900s)
Authors: Walsh, David
Subjects: X-rays Radiography X-Rays Radiography
Publisher: New York : William Wood
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Text Appearing Before Image:
s./r lr a Fig. 73 (Walsh). cadaver. Commencing from above downwards, the round ballat the top was placed in the right frontal lobe of the brain,and the conical bullet next to it also inside the brain, close tothe right parietal bone. As the right side of the head was placednext the sensitive plate, both these bullets were brought close to thefilm, a fact which accounts for their clear definition. For a likereason their shadows in the original photograph correspond nearlyin size with those of the foreign bodies. Their sharpness of outlineis wanting in the third bullet (from above downwards), which wasplaced in the centre of the lower portion of the skull cavity, overthe basilar process of the sphenoid. The radiographic record of thelast missile, moreover, is larger than the original, owing to its 144 THE RONTGEN RA YS IN MEDICAL WORK
Text Appearing After Image:
Fig. 74.—Theee Bullets in Head of a Cadaver ; One in Neck ; reduced about One-Third. MEDICAL AND SURGICAL APPLICATIONS 145 greater distance from the sensitive plate. Much the same may besaid of the remaining bullet, which is deeply embedded in themiddle line of the muscles of the back of the neck. In the absence of definite information as to details, it may beconjectured that the tube, acting strongly from both a photographicand a penetrative point of view, was placed close to the skull, andthat the exposure was fairly long. Under those conditions, theside of the skull next the lamp would be reproduced only faintly, ifat all, and a reference to the figure will show that it representsmainly one side of the skull, namely, that next to the plate. Itwill be noticed that the frontal sinus is displayed, the gums aretoothless, the tongue well defined, and, lastly, that the excellence ofthe result is to some extent accounted for by the thin bones, andthe fact that the photograph was obtaine

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