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To the Editor.—
It was particularly interesting for me to see the LETTER in The Journal (219:621, 1972) on the subject, "Bladder Filling Maneuver for Visualization of Calculus in Lower Ureter."We employed this years ago, but abandoned it in favor of an even simpler and more useful technique when the situation described of an indefinite calculus in the lower part of the ureter is suspected. Very good films can be obtained by filling the bladder with air. This has the same effect of pushing the intestine out of the pelvis and it also makes a sharper contrast for poorly opacified calculi.
Goodwin WE. Visualization of Calculus In Lower Ureter. JAMA. 1972;220(2):277. doi:10.1001/jama.1972.03200020085024