File:A text-book of radiology (1915) (14571031749).jpg

Identifier: textbookofradiol00mort (find matches)
Title: A text-book of radiology
Year: 1915 (1910s)
Authors: Morton, Edward Reginald, 1867-
Subjects: X-rays Cathode rays Ohm's law Fluorescence X-rays Radiography X-Rays Radiography
Publisher: New York : E.B. Treat & Co.
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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pillow and against the side of the neck—theshoulder being to some extent unsupported. The Atlas and Axis.—The patient lies recumbentwith the mouth propped open with a gag, and the normalray passes through the open mouth. These bones are not shown very clearly in a lateralview, owing to the interference of the structures formingthe base of the skull. The Dorsal Spine is fairly easy to do in thin sub-jects and children, but, of course, it is always partlyobscured by the heart, great vessels, and liver. The patient lies recumbent with plate below, and thetube may be brought close to the anterior chest wall so asto diffuse the shadows of the heart and liver as much aspossible. At times these organs form a serious impediment,especially if the case is one of suspected disease of thevertebra?. Then it is useful to have the patient turn half 140 TEXT-BOOK OF RADIOLOGY. on his side, so that we get the shadow of the heart thrownclear of the vertebra?, and a better view of the latterresults.
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Fig. 53. Cervical Ribs. On the right side is a false rib which is rigid, causing pressure onnerves. On the left side is a • true cervical rib with articulations—nosymptoms, but light pressure with the finger controlled the radial pulse. Lumbar Vertebrae.—Here, as in all cases of radio-graphy through the trunk, let the patient be pre-pared by the administration of a vegetable purge over-night, and an enema in the morning. Bowel contentsoften cause shadows on the plate, which obscure importantdetails, besides being confusing in themselves. LUMBAR VERTEBRAE. 141 The shoulders should be raised, and the knees drawn upand supported by a big cushion. This straightens outthe lumbar curve, bringing the bones closer to the plate.

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