. Il cuore e l'aorta; studi di radiologia clinica. Predomina il cles. Questi autori hanno trovato, infatti, nella stenosi mitrale l'indice 1000, e nel a.case della nefrite interstiziale l'indice 280. Mobilità del cuore. Per verificare la mobilità del cuore, il paziente, posizionato dietro lo schermo radioscopico, è pazzesco piegare il corpo da destra a sinistra dell'asse verticale. Quando l'inclinazione è verso sinistra, il cuore de- Fig. 9. INCLINAZIONE laterale DEL CORPO VERSO SINISTRA le linee nere sono i contorni del cuore in posizione verticale (disegnati sulla pelle). Le linee tratteggiate sono l'uscita
1432 x 1745 px | 24,2 x 29,5 cm | 9,5 x 11,6 inches | 150dpi
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. The heart and the aorta; studies in clinical radiology . cles predominates. These authors havefound, indeed, in mitral stenosis the index 1000, and in a.case of interstitial nephritis the index 280. Mobility of the heart. To test the mobility of the heart, the patient, placed behind the radioscopic screen, is madeto bend the body from right to left of the vertical axis. When the inclination is toward the left, the heart de- Fig. 9. LATEEAL INCLINATION OF THE BODY TO THE LEFT The black lines are the outlines of the heart in the vertical position(drawn on the skin). The dotted lines are the outline in left lateralinclination. 34 THE HEART AND THE AORTA viates from the median line by about one to two centi-meters, which is easy to determine if one is careful tomark on the skin of the patient the two successive tracingsof the contour of the apex in these different positions(Fig. 9). The position of the heart varies equally when the pa-tient passes from the vertical position to the horizontalrecumbent (Fig. 10). In the vertical position the heart. Fig. 10. Black lines, projection in recumbent position. Dotted lines, standingposition. pulls on the insertions of the base and on the blood-vessels, it rests more on the diaphragmatic dome, and inconsequence is lowered as a whole. In the recumbentposition, the heart seems to spread, compressed as it isabove and behind. Displacements due to respiration. During deep inspira-tion the heart follows the movements of the diaphragmand is lowered. At the same time, the organ changes alittle in form and its diameters vary slightly; the longi-tudinal diameter increases and the horizontal diameterdiminishes; the result is an elongation and a narrowingof the shadow of the heart. SHADOW OF HEART IN NORMAL STATE 35 During deep expiration, the contrary is observed.Under the pressure of the diaphragm, the heart is raisedand spreads; both diameters increase, the horizontalmore than the longitudinal. Here, for example, are the figures noted in
