Choroid plexus localization of 99mTc-pertechnetate.
Autoradiograms were performed on brain slices, 3 h after 99mTc-pertechnetate injection, and 24 h after previous treatment with stannous pyrophosphate. On macroautoradiograms, the radioactivity was focused entirely upon plexus areas. Silver grains were predominantly overlying the cytosol of brush border cells; less than 10% of the total plexus radioactivity was found in vascular structures. These findings suggest that a possible metabolic phenomenon exists rather than a passive distribution.
D000818:Animals; D001345:Autoradiography; D002831:Choroid Plexus / Q000000981:diagnostic imaging*; D008297:Male; D011877:Radionuclide Imaging; D051381:Rats; D013670:Sodium Pertechnetate Tc 99m; D013667:Technetium
D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m