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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A model for the radionuclide measurement of ascitic fluid volumes.

Technetium-99m phytate colloids formed in vitro and in vivo were examined as radioindicators for estimation of the volume of third-space fluid in an ovarian ascites model using C3HeB/FeJ mice. In double-label experiments, the accuracy of the colloids for dilution analysis was found to be equal or superior to that of I-125 HSA. Sampling times 3--5 min after intraperitoneal administration were found to produce the best volume estimates. Four needle-stopcock assemblies inserted sequentially into the quadrants of the peritoneal cavity were used for administration and sampling of the radioindicators. The stopcocks could be closed to prevent leakage of ascitic fluid during the procedure. In contrast to radiolabeled albumin, Tc-99m phytate colloids have clinical use for simultaneous imaging of radiotracer migration to assess potential occlusion of diaphragmatic lymphatics by neoplastic cells, and for dilution analysis to estimate volume of ascitic fluid.[1]


  1. A model for the radionuclide measurement of ascitic fluid volumes. Kaplan, W.D., Davis, M.A., Uren, R.F., Wisotsky, T., LaTegola, M. J. Nucl. Med. (1978) [Pubmed]
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