Abstract
Emission computed tomography (emission CT) and conventional planar gamma-camera imaging of the liver were compared in 242 patients with suspected metastatic spread to liver. Concordant data were obtained in 171 patients (71%). Single large lesions, multiple small lesions, and diffuse disease were accurately defined with this new radionuclide tomographic technique. The smallest lesion detected by emission CT was 8 mm. Emission CT, planar gamma-camera imaging, and transmission (x-ray) CT were compared in 107 patients. All three methods gave identical results in 76 patients (71%). Assessed against other criteria, such as histological findings and follow-up data, emission CT yielded the highest range of accuracy (92-96%), while transmission CT and planar gamma-camera imaging had similar but lower accuracies (78-81%). Emission CT had a false-positive rate of 2.8% and a false-negative rate of less than 1%. Thus emission CT is highly sensitive in detecting space-occupying disease in the liver.
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- Ell P. J., Deacon J. M., Ducassou D., Brendel A. Emission and transmission brain tomography. Br Med J. 1980 Feb 16;280(6212):438–440. doi: 10.1136/bmj.280.6212.438. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kuhl D. E., Edwards R. Q. Reorganizing data from transverse section scans of the brain using digital processing. Radiology. 1968 Nov;91(5):975–983. doi: 10.1148/91.5.975. [DOI] [PubMed] [Google Scholar]
- Moss A. A., Schrumpf J., Schnyder P., Korobkin M., Shimshak R. R. Computed tomography of focal hepatic lesions: a blind clinical evaluation of the effect of contrast enhancement. Radiology. 1979 May;131(2):427–430. doi: 10.1148/131.2.427. [DOI] [PubMed] [Google Scholar]