title: Using CO2-enhanced arteriography to investigate acute gastrointestinal hemorrhage.
abstract: OBJECTIVE
  The objective of the study was to compare the efficacy of CO2-enhanced arteriography with that of arteriography enhanced with standard iodinated contrast material in the detection of gastrointestinal hemorrhage.
  
  
  CONCLUSIONS
  For acute gastrointestinal hemorrhage, we did not find an advantage to using CO2 to show active bleeding. In fact, CO2 was inferior to iodinated contrast material in revealing nonbleeding vascular anomalies.
authors.affiliation: Department of Radiology, St. George's Hospital, London, England.
authors.forename: C
authors.initials: C
authors.lastname: Sandhu
authors.forename: T M
authors.initials: TM
authors.lastname: Buckenham
authors.forename: A M
authors.initials: AM
authors.lastname: Belli
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography; D015901:Angiography, Digital Subtraction; D002245:Carbon Dioxide; D003287:Contrast Media; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement; D012680:Sensitivity and Specificity
chemical_list: D003287:Contrast Media; D002245:Carbon Dioxide