. The American journal of roentgenology, radium therapy and nuclear medicine . — Prqjecti/e Nepere sL^fJs Fig. 9. Verification of the Method by Turning THE AIeMBER 90°, AND MEASURING ON THE SCREEN THE Distance Between the Shadow of the Pro-jectile AND THE Shadow of the Indicator. 228 Roentgenoscopy at the Front a Screen.—We shall only mention roent-genography as an exceptional is no doubt that for the majorityof French roentgenologists at the front. Fig. 10. Fig. II. Orthodiagram Showing a ComplicatedFracture of the Superior of the Femur, and aProjectile Apparently at the
. The American journal of roentgenology, radium therapy and nuclear medicine . — Prqjecti/e Nepere sL^fJs Fig. 9. Verification of the Method by Turning THE AIeMBER 90°, AND MEASURING ON THE SCREEN THE Distance Between the Shadow of the Pro-jectile AND THE Shadow of the Indicator. 228 Roentgenoscopy at the Front a Screen.—We shall only mention roent-genography as an exceptional is no doubt that for the majorityof French roentgenologists at the front. Fig. 10. Fig. II. Orthodiagram Showing a ComplicatedFracture of the Superior of the Femur, and aProjectile Apparently at the Level of theFemoral Head. Fig. II. A Projection of the Same Fracture,Showing the Bones Enlarged and Projectile Is at a Level Above the FemoralHead. roentgenoscopy furnishes, from the pointof view of the localization of the projectiles,information just as precise as roentgen-ography. Why then prefer a long, costlyand complicated method, which can onlybe a method of complement, to a simpleand rapid method which is sufficient initself? Let it be well imderstood thatroentgenography is properly indicated inthe study of fractures, except perhapsthose of the extremities. We will speak only of the compass ofHirtz, and similar instruments, to pointout that it is an instriiment of guidance for the operator, based on data obtainedby screen or plate localization. It has theinconvenience of being able to be usedfor only one projectile at a time. As to
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