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False-positive liver scans due to portal hypertension: correlation with percutaneous transhepatic portograms in 33 patients.

Abstract
Tc-99m-phytate scanning of the liver and percutaneous transhepatic catheterization of the portal vein were performed in 33 patients--26 with cirrhosis, 3 with chronic active hepatitis, 2 with idiopathic portal hypertension, and 2 with unresolved acute hepatitis. A discrete defect in the porta hepatis area was seen in 6 of 28 patients who had portal vein pressure above 200 mm H2O. In 5 of the 6 patients with a false-positive scan, the umbilical portion of the left portal vein branch was dilated (larger than 25 x 20 mm) on the portogram, with or without a patent paraumbilical vein. The anatomical basis of this phenomenon is discussed, and it is suggested that this area be given special attention.
AuthorsK Takayasu, N Moriyama, M Suzuki, T Yamada, T Fukutake, Y Shima, C Kobayashi, H Musha, K Okuda
JournalRadiology (Radiology) Vol. 147 Issue 1 Pg. 211-4 (Apr 1983) ISSN: 0033-8419 [Print] United States
PMID6828732 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Organotechnetium Compounds
  • technetium phytate
  • Technetium
  • Phytic Acid
Topics
  • Adult
  • Aged
  • False Positive Reactions
  • Female
  • Humans
  • Hypertension, Portal (diagnostic imaging)
  • Liver (diagnostic imaging)
  • Male
  • Middle Aged
  • Organotechnetium Compounds
  • Phytic Acid
  • Portal Vein (diagnostic imaging)
  • Radiography
  • Radionuclide Imaging
  • Technetium

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