What is the role of multidetector row CT (MDCT) scanning in the evaluation of lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Answer

Multidetector row CT (MDCT) scanning is also useful in the evaluation of LGIB. [32] Frattaroli et al compared the sensitivity of MDCT scanning with endoscopy in identifying the site and etiology of acute upper GI bleeding (UGIB) and LGIB and reported that, in terms of identifying the anatomic location and etiology of UGIB, MDCT scanning had a sensitivity of 100% and 90.9%, respectively, whereas endoscopy had a sensitivity of 72.7% and 54.5%, respectively. [33] For LGIB, MDCT had a sensitivity for site and etiology identification of 100% and 88.2%, respectively, whereas endoscopy had a sensitivity of 52.9% for both identifications. [33]


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