. 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. 308. Piece of steel in right arm. Lateral (See also Fig. 307.) each taken from a different point of view. One only was made of thiscase at first (see Fig. 309), and the needle was then sought for carefullyunder ether for more than an hour without success. The second X-raypicture was made from an antero-posterior direction and showed thatthe piece of needle was in the middle of the os calcis. If the precaution 544 THE ROENTGEN RAYS IN M


. 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. 308. Piece of steel in right arm. Lateral (See also Fig. 307.) each taken from a different point of view. One only was made of thiscase at first (see Fig. 309), and the needle was then sought for carefullyunder ether for more than an hour without success. The second X-raypicture was made from an antero-posterior direction and showed thatthe piece of needle was in the middle of the os calcis. If the precaution 544 THE ROENTGEN RAYS IN MEDICINE AND SURGERY had been taken to make either a stereoscopic picture or two views, onefrom a lateral and the other from an antero-posterior point of view, thefirst long: search would have been Fig. 309. Needle in iiiiddle of os calcis. FOREIGN BODIES 545 Precautions to be taken in Regard to Needles. — A needle should becut out directly after it has been located by the X-ray examination, for


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