Imaging Workup of Acute and Occult Lower Gastrointestinal Bleeding.
Radiol Clin North Am. 2018 Sep;56(5):791-804
Authors: Morrison TC, Wells M, Fidler JL, Soto JA
Lower gastrointestinal bleeding is defined as occurring distal to the ligament of Treitz and presents as hematochezia, melena, or with anemia and positive fecal occult blood test. Imaging plays a pivotal role in the localization and treatment of lower gastrointestinal bleeds. Imaging tests in the workup of acute lower gastrointestinal bleeding include computed tomography (CT) angiography, nuclear medicine scintigraphy, and conventional catheter angiography. Catheter angiography can also be used to deliver treatment. Imaging tests in the workup of occult lower gastrointestinal bleeding include CT enterography and nuclear medicine Meckel scan.
PMID: 30119774 [PubMed - in process]