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Updated: June 26, 2025
But to one who had studied roentgenography as Kennedy had each minute gradation of light and shade had its meaning. "You see," pointed out Kennedy, tracing along one of the shadows with a fine-pointed pencil, and then along a corresponding position on another standard skiagraph which he already had, "there is a marked diminution in size of the sella turcica, as it is called.
Edison has taken even instantaneous pictures; but I am not aware of the publication of any pictures showing how perfect these results are. Undoubtedly, as a result of the labors of so many scores of physicists and physicians as are now working at the problem, before long we shall be able to skiagraph at least the thinner parts of the body in a very brief interval.
The moment the skiagraph was taken, it was very clear which bone should be removed. Bony tumors elsewhere can also be diagnosticated and properly treated. Possibly, also, we may be able to determine the presence of dead bone, though I am not aware of any such skiagraphs having been taken. Diseases and injuries of the joints will be amenable to examination by this method.
In the dead body, arteries filled with substances opaque to the X rays, such as plaster of Paris or cinnabar mixtures, have already been skiagraphed successfully. It is not at all improbable that calcified arteries in the living subject may be equally well shown. So, too, when we are able to skiagraph through thick tissues, we may be able to show such deposits in the internal organs of the body.
By this means we shall be able to distinguish between fracture and dislocation in obscure cases. Thus Mr. We may also possibly be able to determine when the bones are properly adjusted after a fracture; and all the better, since the skiagraph can be taken through the dressings, even if wooden splints have been employed.
We do not yet know, by skiagraphs of successful results after fracture, just how such bones look during the process of healing, and, therefore, we cannot yet be sure that the skiagraph of an unsuccessful case is an evidence of unskilfulness on the part of the surgeon. In diseases of bone, which are obscure, it has already proved of great advantage, as in a case related by Mr.
"So," remarked Kennedy, as he read over the translation of the skiagraph which he had jotted down as we picked out the letters and words, "that's how the land lies. Everybody seems to have appreciated the importance of the dagger." "Except Norton," I could not help putting in in disgust. "And now it's gone," he continued, "just as though some one had dropped it overboard.
"We do, by preference; but a six-foot plate would be impossible, so I had a special paper made to the size." There is something singularly fascinating in the appearance of a developing photograph; in the gradual, mysterious emergence of the picture from the blank, white surface of plate or paper. But a skiagraph, or X-ray photograph, has a fascination all its own.
"Located in one of the best protected and most inaccessible parts of the body," Kennedy considered, slowly, "how could the pituitary be reached? If you will study my skiagraph, you will see how I got my first clue. There was something over that spot which caused the refractory sore. What was it?
Doubtless when we are able to devise apparatus of greater penetration, and to control the effect of the rays, we shall be able to skiagraph clearly even through the entire thickness of the body. It might be supposed that clothing or surgical dressings would prove an obstacle to this new photography, but all our preconceived notions derived from the ordinary photograph must be thrown aside.
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