Identifier: americanjournroen09ameruoft (find matches)
Title: The American journal of roentgenology, radium therapy and nuclear medicine
Year: 1906 (1900s)
Authors: American Radium Society American Roentgen Ray Society
Subjects: Radiotherapy X-rays
Publisher: Springfield, Ill. C.C. Thomas
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
or corner ofeach, so that on subsequent examination,it is merely necessary to turn the filmsover, so that the numbers read backward,turn them sidewise until the numbers areat the top, and then place them in the boxeswith the punch marks at the back; that is,away from the observer. A NEW METHOD OF SIMULTANEOUS STEREOSCOPICOBSERVATION OF BOTH MASTOIDS BY PAUL C. HODGES, M.D.From the Department of Roentgenology, Peking Union Medical College PEKING, CHINA HILL and Thomas, writing in theAmerican Atlas oj Stereoroentgenology,February, 1911, ii, No. 8, described atechnique for making stereoroentgeno-grams of both mastoids on a single pair ofplates. Their method made it possible tostereoscope right and left mastoids simul- right and left sides. The films of the rightside are placed in the stereoscope so thatthey give a true stereoscopic image; then,using a conductors punch, holes arepunched to show the upper corner at theback of the box. The films of the left sideare prepared in the same way.
Text Appearing After Image:
Fig. 1. Right Eye Image. Roentgenograms of driedskull. Right side above, left side below, punch marksof both films at the left, numbers and letters reversed. taneously, and was consequently of greatdiagnostic value. The general use of films instead ofplates makes possible another method ofsimultaneous examination of the two sides,which I have employed for about twoyears and which I find to be much simplerthan the older method. Stereoscopic pairs are made ot bothmastoids, using 5X7 nlms and markmS Fig. 2. Left Eye Image. Roentgenograms of dried skull.Right side above, left side below, punch marks at theright. Figures I and 2 can be stereoscoped in theordinary Wheatstone stereoscope. Next, io X 7 pieces of celluloid areprepared, using discarded films with theemulsion washed off. The films of the rightmastoid are turned over so that thenumbers read backward (because thestereoscope mirror reverses the image)and fastened to the upper half of thecelluloid mount, using paper clips. Itwill be

Note About Images