title: Acute gastrointestinal bleeding: emerging role of multidetector CT angiography and review of current imaging techniques.
abstract: Acute gastrointestinal bleeding is a common cause of hospitalization, morbidity, and mortality in the United States. The evaluation and treatment of acute gastrointestinal bleeding are complex and often require a multispecialty approach involving gastroenterologists, surgeons, internists, emergency physicians, and radiologists. The multitude of pathologic processes that can result in gastrointestinal bleeding, the length of the gastrointestinal tract, and the often intermittent nature of gastrointestinal bleeding further complicate patient evaluation. In addition, there are multiple imaging modalities and therapeutic interventions that are currently being used in the evaluation and treatment of acute gastrointestinal hemorrhage, each with its own strengths and weaknesses. Initial experience indicates that multidetector computed tomographic angiography is a promising first-line modality for the time-efficient, sensitive, and accurate diagnosis or exclusion of active gastrointestinal hemorrhage and may have a profound impact on the evaluation and subsequent treatment of patients who present with acute gastrointestinal bleeding.
authors.affiliation: Department of Radiology, MetroHealth Medical Center, Case Western Reserve University, 2500 MetroHealth Dr, Cleveland, OH 44109, USA. utmaddoc@hotmail.com
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Laing
authors.forename: Terrence
authors.initials: T
authors.lastname: Tobias
authors.forename: David I
authors.initials: DI
authors.lastname: Rosenblum
authors.forename: Wade L
authors.initials: WL
authors.lastname: Banker
authors.forename: Lee
authors.initials: L
authors.lastname: Tseng
authors.forename: Stephen W
authors.initials: SW
authors.lastname: Tamarkin
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000295:instrumentation / Q000379:methods* / Q000639:trends; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians' / Q000639:trends; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods* / Q000639:trends