Angiodysplasia other diagnostic studies

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Nikita Singh, M.B.B.S.[2]

Other Diagnostic Studies

In cases with negative endoscopic findings and high clinical suspicion, selective angiography of the mesenteric arteries is sometimes necessary. An alternative is scintigraphy with red blood cells labeled with technetium-99m, a radioactive marker; this shows the site of the bleeding on a gamma camera but unhelpful unless the bleeding is continuous and significant.^[1] Another drawback is the lack of specificity of localisation of the bleeding site.^[2]

References

↑ Mitchell SH, Schaefer DC, Dubagunta S (2004). “A new view of occult and obscure gastrointestinal bleeding”. Am Fam Physician. 69 (4): 875–81. PMID 14989574.
↑ Dusold R, Burke K, Carpentier W, Dyck WP (1994). “The accuracy of technetium-99m-labeled red cell scintigraphy in localizing gastrointestinal bleeding”. Am J Gastroenterol. 89 (3): 345–8. PMID 8122642.

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[pmid14989574-1] Mitchell SH, Schaefer DC, Dubagunta S (2004). “A new view of occult and obscure gastrointestinal bleeding”. Am Fam Physician. 69 (4): 875–81. PMID 14989574.

[pmid8122642-2] Dusold R, Burke K, Carpentier W, Dyck WP (1994). “The accuracy of technetium-99m-labeled red cell scintigraphy in localizing gastrointestinal bleeding”. Am J Gastroenterol. 89 (3): 345–8. PMID 8122642.

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