Pseudolayering of Gd-DTPA in the urinary bladder.

@article{Elster1990PseudolayeringOG,
  title={Pseudolayering of Gd-DTPA in the urinary bladder.},
  author={Allen D. Elster and Wladyslaw T. Sobol and William H. Hinson},
  journal={Radiology},
  year={1990},
  volume={174 2},
  pages={379-81}
}
When excreted gadolinium diethylenetriaminepentaacetic acid (DTPA) collects in the bladder of a supine patient during magnetic resonance (MR) imaging, a puzzling pattern of signal intensities is noted. A gradual change in urine signal intensity with progressive addition of Gd-DTPA does not occur; instead, three sharply defined "layers" are seen both on T1- and T2-weighted images within the urine-Gd-DTPA mixture. The physical basis for this triple-layering phenomenon was investigated. A bladder… CONTINUE READING

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