Scintigraphic signs and pitfalls in lower gastrointestinal hemorrhage: the continued necessity of angiography.
Scintigraphy is useful in directing the angiographer to the source of bleeding and, if negative, in precluding emergency angiography, but it is not specific enough to supplant angiography totally.
D000792:Angiography; D004912:Erythrocytes; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D011877:Radionuclide Imaging; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
D013671:Technetium Tc 99m Sulfur Colloid; D013667:Technetium