Precise Localization of Occult Gastrointestinal Hemorrhage Using Dynamic SPECT/CT.
Murrey DA Jr, Hall NC, Wright CL, Mankoff DA
Clin Nucl Med 41 46-9 01/01/2016
Active but intermittent gastrointestinal (GI) bleeding can be readily detected with dynamic planar scintigraphic imaging. This is a case of a 48-year-old woman who presented from an outside institution with active GI bleeding on 99mTc-labeled RBC (99mTc-RBC) scintigraphy, but the upper and lower GI evaluations failed to subsequently localize the site of persistent bleeding. Repeat 99mTc-RBC planar scintigraphy identified a focus of active extravasation in the right lower quadrant of the abdomen. Dynamic SPECT/CT imaging was immediately performed and further identified the ileocecal valve region as the precise site of active extravasation, which was confirmed at surgery.Full Text