Anterior dynamic imaging of the liver and spleen.

Anterior dynamic imaging of the abdomen was performed in 870 patients using a large field-of-view (LFOV) gamma camera. Sequential images were obtained immediately after the injection of Tc-99m sulfur colloid (Tc-99m SC) in an antecubital vein for liver-spleen imaging and was followed by standard planar images. This provided additional information in 172 cases (20%), including such findings as determination of the lesion's vascularity in 76 (9%), visualization of abnormal portal blood flow in 53 (6%), and detection of abnormalities in the aorta, inferior vena cava, iliac vessels, or kidneys in 43 (5%) of these patients. This procedure is recommended in all patients undergoing liver-spleen imaging.