Carcinoid Liver Metastases Accuracy of Radionuclide Liver/Spleen Imaging Compared to Computed Tomography

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Abstract
Carcinoid liver metastases may be more easily detected by radionuclide liver-speen studies (RN imaging study) than by computed tomography (CT). While multiple studies have suggested that CT is a more sensitive test than the Tc-99m sulfur colloid study for the detection of most types of liver metastases, carcinoid tumors appear to be an exception. The results of 23 pairs of CT and RN imaging studies that were obtained within one month of each other in patients with proven carcinoid tumors are reported. Comparison of the initial reports of the studies as well as a blinded reinterpretation of the studies suggest that in this group of patients the RN imaging study appeared to be superior to CT in the evaluation of the response to therapy.