Diseases of the chest and the principles of physical diagnosis . area, ^^Q Cm. ^™- ML \ L QCm. J Cm. Cm. Cardiacarea,Q Cm. 145-154 95 1 1 Q3^ ? ioi 105. FiQ. 176.—Pkricardial EFFUSION. Viewed from behind, causing enlargement of cardiacdulness to the left and compression of the left lower pulmonary lobe. The left ventricle ishypertrophied, the mitral valve sclerotic. The liver is enlarged and upward pressure fromascitic fluid h
Diseases of the chest and the principles of physical diagnosis . area, ^^Q Cm. ^™- ML \ L QCm. J Cm. Cm. Cardiacarea,Q Cm. 145-154 95 1 1 Q3^ ? ioi 105. FiQ. 176.—Pkricardial EFFUSION. Viewed from behind, causing enlargement of cardiacdulness to the left and compression of the left lower pulmonary lobe. The left ventricle ishypertrophied, the mitral valve sclerotic. The liver is enlarged and upward pressure fromascitic fluid has caused compression of the right lower lobe. A, aorta; T, trachea; E,esophagus; , right pulmonary artery; , left pulmonary artery; , superiorvena cava;, left auricular appendage; , inferior vena cava. (Compare Fig. 216.) The Orthodiagraph.—The ordinary X-ray plate is inaccurate for thepurpose of determining the size of the heart. The reason for this isthe fact that the heart lies from 7 to 10 cm. from the anterior chest wall. PERCUSSION OF THE HEART 215 It is, therefore, further from the source of Hght than are the anterior ribsand since the X-rays are divergent the heart shadow varies inconstantlyand disproportionately in relation to the ribs. The orthodiagraph overcomes this difficul
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1920
