. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 189. Case XIII. D. Aneurism of the ascending aorta without pulsation. X-ray and per-cussion lines compared. X-ray lines confirmed at autopsy; also the density of the lung that was■determined by X-ray examination. (Cut one-third life size.) was examined carefully, both by the usual physical examination andradioscopically, and the outlines of the heart and of the aneurism, asdetermined by each method, were compared. The following cut gives ared


. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent : designed for the use of practitioners and students . Fig. 189. Case XIII. D. Aneurism of the ascending aorta without pulsation. X-ray and per-cussion lines compared. X-ray lines confirmed at autopsy; also the density of the lung that was■determined by X-ray examination. (Cut one-third life size.) was examined carefully, both by the usual physical examination andradioscopically, and the outlines of the heart and of the aneurism, asdetermined by each method, were compared. The following cut gives areduced copy of the outlines as determined by the X-rays and by per-cussion ; the full lines indicate the former, the dotted lines the latter. At the autopsy, which took place a few days later, and at which Iwas present, the correctness of the X-ray outlines was confirmed. Theposition of the right and left borders of the heart and of the aneurism 328 THE ROENTGEN RAYS IN MEDICINE AND SURGERY was determined by Dr. Mallory, by measurements taken directly afterthe removal of the sternum and the opening of the pericardium. Thetracing of the outlin


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