The radionuclide detection of lower gastrointestinal bleeding sites

M. Winn, H. S. Weissmann, S. Sprayregen, L. M. Freeman

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


A retrospective review of two years' experience with radionuclide screening to detect lower gastrointestinal bleeding sites was conducted at New York's Montefiore Medical Center. Of 82 studies performed in 63 patients, 13 identified active bleeding sites. Only three of eight angiograms obtained in these 13 patients were positive. Thirteen contrast angiograms were performed in the group of 50 patients with negative radionuclide studies of which ten were negative and one was equivocal. The results of this study suggest that the Tc-99m sulfur colloid study for active lower gastrointestinal (GI) bleeding is an effective screening procedure. Positive studies help determine which vessel to catheterize selectively if an angiogram is to be performed. If vascular ectasis is still suspected following a negative radionuclide study, contrast angiography can be more efficaciously performed on a nonemergent basis.

Original languageEnglish (US)
Pages (from-to)389-395
Number of pages7
JournalClinical nuclear medicine
Issue number9
StatePublished - Jan 1 1983

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'The radionuclide detection of lower gastrointestinal bleeding sites'. Together they form a unique fingerprint.

Cite this