. 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 . John C. Fig. 175. John C. Cut of tracing made with screen on front of chest. (Cut one-third life size.)Full lines show position of heart during deep inspiration; broken lines, position during axis nearly horizontal. by the fluorescent screen to be in reality due to the descent of thediaphragm, and the consequent change in the direction of the longaxis of the heart; as in the cases given above, the heart has beendisplaced. Anaemia
. 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 . John C. Fig. 175. John C. Cut of tracing made with screen on front of chest. (Cut one-third life size.)Full lines show position of heart during deep inspiration; broken lines, position during axis nearly horizontal. by the fluorescent screen to be in reality due to the descent of thediaphragm, and the consequent change in the direction of the longaxis of the heart; as in the cases given above, the heart has beendisplaced. Anaemia. — In anaemia with constipation, the diaphragm would behigher than normal, thus tipping, the heart and making it appear tohave greater width. (See page 389.) Unusual positions of the heart and transposition of this organ are 298 THE ROENTGEN RAYS IN MEDICINE AND SURGERY often easily recognized by an X-ray examination, when by other meth-ods their recognition would be uncertain or difficult. A Case of Apparent Dextrocardia. This case illustrates the advan-tao-es which fluoroscopic examinations have over those with a radiographor the usual physical
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