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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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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