. X-ray observations for foreign bodies and their localisation . ng the contour of the body and transferring the skin markings to the metal band. can be obtained from any medical electrical are made of an alloy used for high frequency strips should be some 2 cm. wide for the limbs and 4 for the body, and of various lengths, sufficient to encirclethe different circumferences of limbs and body. They arehinged in the centre. When in use (Illustration 35) the 48 X-Rav Observations for Forei2:n Bodies hinge should be placed upon some anatomical landmark tofacil
. X-ray observations for foreign bodies and their localisation . ng the contour of the body and transferring the skin markings to the metal band. can be obtained from any medical electrical are made of an alloy used for high frequency strips should be some 2 cm. wide for the limbs and 4 for the body, and of various lengths, sufficient to encirclethe different circumferences of limbs and body. They arehinged in the centre. When in use (Illustration 35) the 48 X-Rav Observations for Forei2:n Bodies hinge should be placed upon some anatomical landmark tofacilitate reference; the spinous process of a vertebra is verysuitable for the purpose. Right or left, and anterior■or posterior, should be marked upon the metal. Care mustnow be taken to mould the band to the exact contour of thebody. Where the metal overlaps, a line is drawn on theband, also the positions of the coloured markings on the skinare transferred to the metal band, as well as the position of thew^ound of entrance or the incidence of the perpendicular. Illustration the contour (and markings) to paper. drawn from it. The metal is then lifted, great care being takento see that the contour is preserved, and placed upon a sheetof paper. The internal contour is traced with a pencil on tothe paper, and the coloured marks are transferred. (Illustra-tion 36.) The anatomical level of the foreign body should benoted, and, if the wound of entrance is not in the same plane,its distance superior or inferior measured. As an additionalprecaution, until the worker is familiar with the method, largewooden calipers may be used to take the lateral and antero- X-Ray Observations for Foreign Bodies 49 posterior measurements of the body, in order to confirm theshape and position of the transferred metal. The colouredmarks are connected with the aid of a ruler, and if care hasbeen exercised it will be found that the three lines intersectwithin an area not larger than the fore
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherstlou, bookyear1920
