File:X-ray manual - U.S. Army (1917) (14570670179).jpg

Identifier: xraymanualusarmy00unit (find matches)
Title: X-ray manual : U.S. Army
Year: 1917 (1910s)
Authors: United States. Surgeon-General's Office American Roentgen Ray Society
Subjects: X-rays Fractures Teeth Chest Heart Radiography
Publisher: New York : Middleditch
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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dividers or apermanent triangle set at an angle of 23 degrees. Fig. 9. The patient is seated before an adjustable stand or maylie prone on a table. The head rests face downwardwith the nose and forehead on an inclined plane. Theinclination is such as to be comfortable to the patient.The head rest shown in the illustration has an angleof 20 degrees. If the patient is sitting an adjustable restis necessary to accommodate for the difference in thelength of the neck and shape of the head. The tip of the angle finder is placed opposite theglabella, the left arm passing across the external auditorymeatus, the right arm extending upwards alongside thecone and representing the direction of the principal ray.The cone is now brought in to alignment with the arm ofthe finder and brought down on the head, making firmpressure. Fig. 9. For lateral plates the patient places the side of thehead on the platform holder, the head is levelled so thatthe sagital plane is parallel to the plate and the tube
Text Appearing After Image:
Fig. 9. Adjustment for exposure of accessory sinuses In the posterior-anterior direction. 209

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