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  • Title: Detection of gastrointestinal bleeding by radionuclide scintigraphy.
    Author: Gupta S, Luna E, Kingsley S, Prince M, Herrera N.
    Journal: Am J Gastroenterol; 1984 Jan; 79(1):26-31. PubMed ID: 6318553.
    Abstract:
    Scanning with Technetium 99m labeled autologous red blood cells was performed in 59 patients with clinical suspicion of acute and/or intermittent, chronic gastrointestinal bleeding. In 36 patients (61%), a definite site of bleeding could be demonstrated. A strong correlation with other modalities such as upper and lower gastrointestinal endoscopy, contrast angiography, and surgical exploration was found. Overall sensitivity of the procedure was 91%; specificity 100% and accuracy 93.3%. It is suggested that radionuclide scintigraphy provides a completely noninvasive, simple, and sensitive procedure which may be routinely used for the detection and localization of gastrointestinal bleeding.
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