File:The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14734271046).jpg

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

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. It seems appropriate to present our further studies of this class of cases for the reasons that the evidence is of increased A brief analysis of the proven cases value because of the constancy of it, that serves to show the constancj with whichthere are a few important points not diagnostic roentgen-ray evidence and local-mentioned in our former paper, and, izing signs are present. Although thefurther, that there arc variations and analysis does not show it, compensatorycomplications at times which deserve emphysema is always present in the un-more careful consideration. Then, too, affected lung. The cases are listed in thethere have been twelve cases in which, sequence of their appearance and thebecause of history, symptoms, or signs, F. B. No. is that given by Dr. Jackson. » Read at the Twenty-Second Annual Meeting of The American Roentgen Ray Society Washingi D C Sept 27-30.1921. 288 Suspected casesTotal 228 4 2 4412 56 The Roentgen-Ray Diagnosis of Non-opaque Foreign Bodies 289
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Fig. 1. F. B. No. 802. Signs are not marked, but positive. Exposures were made during quiet breathing: (a) Inspiration; (6) Expiration; (c) Alter removal. The roentgen-ray signs of acute obstruc-tive monolateral emphysema are: 1. Increased transparency of the affectedlung. 2. Depression and partial fixation of thediaphragm on the affected side. 3. Displacement of the heart and medi-astinal structures away from the affectedside. 4. Increased excursion of the diaphragmon the unaffected side, due to compensa-tory emphysema. The diaphragmatic signs are the mostimportant, for by them alone can one ruleout compensatory emphysema. In our former paper, sign No. 4 wassuggested as Increased density in thelung shadows on the opposite side due toretained secretions. We now feel thatthis is not sufficiently constant to beclassed with those mentioned above. Itdoes occur in a small percentage of casesand is present probably for the reasonthat the foreign body has shifted from oneside to the other an

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