Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4222866 | Clinical Imaging | 2011 | 8 Pages |
Abstract
The role of carcinoembryonic antigen (CEA), magnetic resonance imaging (MRI), and positron emission tomography (PET)-computed tomography (CT) in detection of local recurrence of colorectal cancer is evaluated in 71 patients, selected due to suspected relapse at CT follow-up. Recurrence was confirmed by histology in 18 cases and excluded in 25 cases. Sensitivity, specificity, positive and negative predictive values, and accuracy were as follows: 44.4%, 92.5%, 66.7%, 83.1%, and 80.3% for CEA; 88.9%, 73.6%, 53.3%, 95.1%, and 77.5% for MRI; and 94.4%, 73.6%, 54.8%, 97.5%, and 78.9% for PET-CT. A diagnostic protocol integrating CEA and dedicated imaging studies is to be advocated.
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Authors
Federica Fiocchi, Valentina Iotti, Guido Ligabue, Norma Malavasi, Gabriele Luppi, Bruno Bagni, Pietro Torricelli,