File:The Röntgen rays in medical work (1899) (14756957975).jpg

Identifier: rntgenraysinmedi00wals (find matches)
Title: The Röntgen rays in medical work
Year: 1899 (1890s)
Authors: Walsh, David
Subjects: X-rays Radiography X-Rays Radiography
Publisher: London : Baillière, Tindall and Cox
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:
RONTGEN RA YS IN MEDICAL WORK corresponding to the pulse at the wrist. The pulsation can be perceived easilyall over it, the lower half moving to the left during systole. The horizontal level is continually in movement. Apart from the respiratorychange of position, there are undulations which are to some extent synchronouswith the contraction of the heart; but this rhythm is disturbed by irregularwaves which pass over the surface at the same time. When the patient holdshis breath, one can see clearly the level rising at each cardiac contraction.The slightest movements of the thoracic floor show themselves on the surfacelevel. This remains horizontal when the patient bends over to the right side orto the left. On percussion of the thorax the undulations above described becomemore pronounced, and they attain the height of ten centimetres when the patientis violently shaken. They may be compared to the oscillatory movements seenin a vessel filled with liquid when it is sharply agitated.
Text Appearing After Image:
Fig. 93. The photograph reproduced in the accompanying illustration was taken withthe patient sitting down, leaning his back against the case containing the photo-graphic plate. The tube is 15 centimetres distant from the sternum, at theheight of the surface level. The photograph reproduces very closely the descrip-tion given of the image on the screen, but, of course, without the phenomena ofmovement. On examination of the patient lying down on his left side, the darker shadowis again seen undermost, but it now extends from the apex of the lungs to thediaphragm, and shows neither pulsatory nor respiratory movements. The medianpart of the left half of the diaphragm is visible in this position. It is obviouslydepressed, and does not appear to be moving distinctly. The shadow of theheart subsides to a slight extent into the left half of the thorax. MEDICAL AND SURGICAL APPLICATIONS 197 We may infer from these appearances that the right lung is diseased in nearlyits whole extent, while o

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