• Investigative radiology · Nov 1989

    Ultrasound detection of differences in density. Explanation of the ureteric jet phenomenon and implications for new ultrasound applications.

    • C I Price, R S Adler, and J M Rubin.
    • Department of Radiology, University of Michigan Medical Center, Ann Arbor.
    • Invest Radiol. 1989 Nov 1; 24 (11): 876-83.

    AbstractFlow of urine from the ureter into the bladder can be encountered during routine sonographic examination of the pelvis. The findings include a stream of hyperechogenic foci spurting into the bladder in real time with the production of a frequency shift during Doppler examination. We have demonstrated that visualization of this phenomenon, at least in part, reflects differences in density and associated compressibility changes between urine in the bladder and in the ureter, and need not be dependent upon flow velocity or other previously hypothesized parameters. The clinical utility of these reproducible and measurable phenomena is explored.

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