title: Correlation of computed tomography, gray scale ultrasonography, and radionuclide imaging of the liver in detecting space-occupying processes.
abstract: The abilities of computed tomography (CT; scanning time=2.7 min), gray scale ultrasonography, and radionuclide imaging to detect and characterize space-occupying processes in the liver were compared. A numerical rating scale which emphasized detection abilities resulted in ultrasonography scoring 3.5 CT 3.2, and radionuclide imaging 2.9. CT resulted in no false positives and 6 false negatives, caused mainly by motion artifacts. The simplest technique, radionuclide imaging, also had the smallest number (2) of false negatives; it is therefore recommended as the screening procedure of choice. Sonography or CT should be done for those patients with a prior suspicious finding.
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D003560:Cysts / Q000175:diagnosis / Q000000981:diagnostic imaging; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008113:Liver Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D008223:Lymphoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D013667:Technetium; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D013667:Technetium