What role does radionuclide scanning play in the diagnosis and treatment of lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Answer

The role of radionuclide scanning, or nuclear scintigraphic imaging, in the diagnosis and treatment of patients who present with lower gastrointestinal bleeding (LGIB) remains controversial. Radionuclide scans include the technetium-99 (99 Tc) sulfur colloid scan and the 99mTc pertechnetate–labeled autologous red blood cell scan (TRBC scan), as well as indium-111 (111In)–labeled RBC scintigraphy.


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