American quarterly of roentgenology (1906) (14570601480)

Identifier: americanquarterl01amer (find matches)
Title: American quarterly of roentgenology
Year: 1906 (1900s)
Authors: American Roentgen Ray Society
Subjects: Nuclear Medicine Radiography Radiology Radiology
Publisher: Pittsburgh : American Roentgen Ray Society
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and the National Endowment for the Humanities



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ast a shadow many times as dense as that cast by thesolids of the dry specimen. We then made radiographs of some heads of cadaversbefore and after filling parts of the sinus cavities withwater or with pieces of moist mucous membrane introducedthrough trephine openings. It was easy to detect the addedliquid and membrane in the radiograph, but the ratherlarge trephine openings were objectionable and it wasfound very difficult to keep the liquid from leaking outof the cavities. Dr. Coakley then made the very practicalsuggestion that we use moist gelatin instead of water ormembrane for filling the cavities, and the demonstrationwas then repeated with more refinement in detail. Controlradiographs were first made to show that the opacity toX-ray of the moist gelatin was practically the same asthat of the water or pus or edematous membrane. Radiographs of the heads of some fresh cadaverswere made. Then the scalp was turned down over thefrontal bone until the supraorbital ridges were exposed.
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I. Very large frontal sinuses with manysepta. Fluid is shown in right frontal andright maxillary sinuses. Operation by Dr.C G. Conkley demonstrated that thesecavities were filled with pus. 3. Frontal sinuses rather large, but con-tain no fluid. The left maxillary sinusescontained small amount of pus The trans-verse line across upper third of orbits showthe limit of shadow of horizontal plate offrontal bone. The principal angle is approx-imately 250. 2. Asymemetrical frontal sinuses. Inthis case, trans-illumination was misleading.The principal angle is a little too small andthe shadows of petrous bones are shown overlower third of orbit. 4. Left frontal and both maxillary sinusesfilled with pus. Principal angle a little toosmall for best results. OF KOENTGENOLOGY. 29 . By means of tracings from the first radiographs, the frontalsinuses and their septa were outlined in ink on the frontalbones of the cadavers. Then by using a small drill, di-rected downward and backward from points above