File:The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14571180977).jpg

Identifier: americanjournalo10ameruoft (find matches)
Title: The American journal of roentgenology, radium therapy and nuclear medicine
Year: 1906 (1900s)
Authors: American Radium Society American Roentgen Ray Society
Subjects: Radiotherapy X-rays
Publisher: Springfield, Ill. C.C. Thomas
Contributing Library: Internet Archive
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in the lower left ureter. Fig. 66. Catheter in place showing the suspicious shadow apparently outside of the ureter. Same caseas shown m Fiijure 6(i. The Technique of Roentgenological Examinations of the Urinary Tract 2- two positions, we feel reasonably surethat the presence of a ureteral stone isindicated. In the case of a small calcifiedgland below the ureter, one anteriorposterior plate of the catheterized uretermay show a shadow directly in contactwith the catheter. Another exposuregiving a marked oblique or lateral view,however, may disclose a considerable spaceintervening between the shadow and the them (Fig. 6, a and h). With a problemof this kind, a ureterogram should bemade which will give the exact size of thelumen of the ureter, with the extent ofdilatation, and usually the point of con-striction (Fig. 7, a and h). This methodis much more accurate than the waxed-tip catheter, which may be introducedinto the dilated ureter, and at no timecome into contact with the calculus.
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Fig. ya. Injected ureter showing large hydro-ureter. Ureter containsboth catheter and calculus. Same case as shown in Figure 6a.; Fig. -jh. Injected ureter and kidney,shown in Figure 6a, after removal. catheter, a finding which will usually ruleout a calculus. But even a second plate isnot sufficient in all cases. Frecjuently,particularly in the case of a large calculus,the ureter becomes dilated from over-distention due to obstruction. This dis-tention may be enormous, so that theureter may measure more than an inch indiameter. With this type of case, both thecatheter and calculus may be in the ureter,with a considerable distance between When examination of the films showsno evidence of calculus, we should reportthat the roentgenological findings arenegative to calculus; but to this report weshould add the statement that in a smallper cent of cases, calculi may be presentin the ureter or kidney which will not beseen on the roentgenograms. We believethat in some cases, this lack of vi

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