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Zusammenfassung
Identifier: americanjournroen06ameruoft (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:
or the rays. 2. A layer of fat, 3^ inch thick, wasplaced along a series of five aluminumfilters ranging in thickness from .2 mm.to I mni. A radiogram for comparison ofthese two substances was made in a waysimilar to that in the case of the skinexperiment, and it is shown that one-halfinch of fat will arrest on the average asmany rays as two-fifths of a millimeter ofaluminum would filter. (Fig. 2.) included. Their measurements show thatour photographic estimates are approxi-mately correct. Taking these physical characteristics ofthe rays into account, I have thereforeconcluded that in order to have a fullmeasure of the efifective .x-rays reach thetumor, we must remove the obstructionto their passage, namely, the skin, the fatand muscle, and as much of the tumor aspossible. The procedure will be best under-stood by the illustration of cases, becausethe operation must of necessity be differentin each case. For illustration I cite four cases ofdifferent types from a larger series in which
Text Appearing After Image:
Fig. 5. Complete Closure of Wounds Sibsequent to Radical Operation with Plastic. Recurrence tookplace after this operation. Fig. 6. Subsequent OperjVTion, Leaving Wound Open, R^vdium Inserted.Fig. 7. Growth of Skin in the Depth of E.xc.wated Bone Subsequent to Radium Ttre.atment. Patient under observation. 3. The same experiment as No. 2 wasmade with muscle tissue. A piece ofbeefsteak, ^4 inch thick, was placedalongside the filter-scale and the shadowproduced by the beefsteak is at least threetimes as dense as that obtained from imm. of aluminum. (Fig. 3.) Thus it wouldappear that three-quarters of an inch ofmuscle would be capable of absorbingmost of the beta rays from radium. The meastorements of the absorption ofrays by means of the electroscope arc moreaccurate, and have been conducted throughthe courtesy of Professor Millikan at theRyerson Lal;)oratory of the University ofChicago. The report of this work is lierc this treatment has been employed. Wemtist bear in mind that we are