Production of cerebrospinal fluid leak artifact by residual 99mTc-pertechnetate.
Residual oropharyngeal 99mTc activity was detected on an 111In-DTPA cisternogram creating the appearance of a CSF leak. This can be prevented by employing a spectrometer setting that encompasses only the higher principal photopeak of 111In.
D000368:Aged; D002555:Cerebrospinal Fluid; D002946:Cisterna Magna; D005260:Female; D006801:Humans; D007204:Indium; D004369:Pentetic Acid; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013667:Technetium
D011868:Radioisotopes; D007204:Indium; D013667:Technetium; D004369:Pentetic Acid