The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14754296631)

Identifier: americanjournroen07ameruoft (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

Text Appearing Before Image:

Fig. I. Low Pressure Tank used in Study of theAviators Heart. bon dioxide. As the subject of the experi-ment breathes the air in this tank over andover, he gradually uses up the oxygen untilfinally he may come to a point where he isbreathing an oxygen-nitrogen mixture con-taining only 8, 6 or even 5 per cent of oxy-gen instead of the usual 21 per cent in nor-mal air. Since the nitrogen is bland andneutral (simply a vehicle, as it were, for theadministration of oxygen) the efifect ofdiminishing the percentage of oxygen in therebreather has the same physiological effect

Text Appearing After Image:

Solid 11ns ihows percuMlbefor* and afttr experlB«nt. Brtken lln* »Y.nt outlir* «t 19,600 ft.»lev»tlon iB low proooun chamber. Fig. 2. Cardiac Enlargement to both Right andLeft as Determined by Percussion in the LowPressure Chamber. (Whitney.) taken before and after the run, there wereobtained from six to thirteen roentgeno-grams of each heart. The greatest care was taken in the align-ment of the tube, the patient, and the plate,so as to make the radiographs properly com-parable one with another, not only those ofthe same, but also those of different subjects.The sitting posture offered the most advan-tages, as not interfering with the rebreath-ing apparatus, and also as enabling the sub- The Aviators Heart 69 jects to maintain a fixed position for therequired length of time. In order to makesure that the ahgnment was maintainedthroughout the experiment, a special chairwas built having a straight back containinga large transparent celluloid panel. Downthe center of the back a perp

The American Journal of Roentgenology Radium Therapy and Nuclear Medicine 1906 Buchillustrationen Medizin Röntgen Röntgenstrahlen medizinische Geräte medizinische Therapie Physiologie Bilder aus dem Internetarchiv Kanada

1906

University of Toronto

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