Padia Siddharth A, Bybel Bohdan, Newman James S
Division of Radiology, Cleveland Clinic, OH 44195, USA.
Cleve Clin J Med. 2007 Jun;74(6):417-20. doi: 10.3949/ccjm.74.6.417.
In patients with acute lower gastrointestinal bleeding, colonoscopy is the initial test of choice. But when colonoscopy gives indeterminate results or cannot be performed, either radionuclide imaging or angiography is indicated.
