title: Radiologic diagnosis and management of acute lower gastrointestinal bleeding.
abstract: In patients with acute lower gastrointestinal bleeding, colonoscopy is the initial test of choice. But when colonoscopy gives indeterminate results or cannot be performed, either radionuclide imaging or angiography is indicated.
authors.affiliation: Division of Radiology, Cleveland Clinic, OH 44195, USA.
authors.forename: Siddharth A
authors.initials: SA
authors.lastname: Padia
authors.forename: Bohdan
authors.initials: B
authors.lastname: Bybel
authors.forename: James S
authors.initials: JS
authors.lastname: Newman
mesh_terms: D000208:Acute Disease; D000792:Angiography; D003113:Colonoscopy; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging* / Q000601:surgery; D006488:Hemostasis, Surgical; D006801:Humans; D041741:Lower Gastrointestinal Tract / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging