COMPARISON OF HELICAL COMPUTERIZED TOMOGRAPHY, POSITRON EMISSION TOMOGRAPHY AND MONOCLONAL ANTIBODY SCANS FOR EVALUATION OF LYMPH NODE METASTASES IN PATIENTS WITH PROSTATE SPECIFIC ANTIGEN RELAPSE AFTER TREATMENT FOR LOCALIZED PROSTATE CANCER

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Abstract
Conclusions CT and PET each detected evidence of metastatic disease in 50% of all patients with a high PSA or PSA velocity (greater than 4 ng./ml. or greater than 0.2 ng./ml. per month, respectively). Both techniques are limited for detecting metastatic disease in patients with a low PSA or PSA velocity. Our data suggest that monoclonal antibody scan has a lower detection rate than CT or PET.