(Note: CTA is a separate procedure distinct from CT abdomen and pelvis without and with IV contrast). CT Abdomen and Pelvis Without IV Contrast There is no significant literature supporting the use of CT abdomen and pelvis without IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen and pelvis without IV contrast). Nonvariceal Upper Gastrointestinal Bleeding CT Abdomen With IV Contrast There is no significant literature supporting the use of CT abdomen with IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen with IV contrast). CT Abdomen Without and With IV Contrast There is no significant literature supporting the use of CT abdomen without and with IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen without and with IV contrast). CT Abdomen Without IV Contrast There is no significant literature supporting the use of CT abdomen without IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen without IV contrast). CT Enterography There is no significant literature supporting the use of CT enterography as an imaging test for overt UGIB, which is untreatable by endoscopy. Although multiphasic CT enterography can detect bleeding because of technique parameters that can mirror CTA, the primary use of this protocol is directed more at finding a potential bleeding source when bleeding is of a slow rate [41] in patients with occult GI or suspected small bowel bleeding [5]. CTA Abdomen and Pelvis With IV Contrast Although CTA can detect overt GIB, performance with IV contrast only may not be as helpful. There is no significant literature supporting the use of CTA abdomen and pelvis with IV contrast. Noncontrast images can aid in the identification of a sentinel clot. Dual-energy CT allows for the generation of virtual noncontrast images from a CTA data set.
Nonvariceal Upper Gastrointestinal Bleeding. (Note: CTA is a separate procedure distinct from CT abdomen and pelvis without and with IV contrast). CT Abdomen and Pelvis Without IV Contrast There is no significant literature supporting the use of CT abdomen and pelvis without IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen and pelvis without IV contrast). Nonvariceal Upper Gastrointestinal Bleeding CT Abdomen With IV Contrast There is no significant literature supporting the use of CT abdomen with IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen with IV contrast). CT Abdomen Without and With IV Contrast There is no significant literature supporting the use of CT abdomen without and with IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen without and with IV contrast). CT Abdomen Without IV Contrast There is no significant literature supporting the use of CT abdomen without IV contrast. (Note: CTA is a separate procedure distinct from CT abdomen without IV contrast). CT Enterography There is no significant literature supporting the use of CT enterography as an imaging test for overt UGIB, which is untreatable by endoscopy. Although multiphasic CT enterography can detect bleeding because of technique parameters that can mirror CTA, the primary use of this protocol is directed more at finding a potential bleeding source when bleeding is of a slow rate [41] in patients with occult GI or suspected small bowel bleeding [5]. CTA Abdomen and Pelvis With IV Contrast Although CTA can detect overt GIB, performance with IV contrast only may not be as helpful. There is no significant literature supporting the use of CTA abdomen and pelvis with IV contrast. Noncontrast images can aid in the identification of a sentinel clot. Dual-energy CT allows for the generation of virtual noncontrast images from a CTA data set.