The determination of PSA-ACT or cPSA and the associated ratios do not improve the diagnostic impact to discriminate between PCa and BPH compared to fPSA/tPSA ratio. The ratios PSA-ACT/tPSA or cPSA/tPSA can be considered to be alternative tools of fPSA/tPSA.
Other sources for this publication
Comparison of the Clinical Validity of Free Prostate–Specific Antigen, Alpha–1 Antichymotrypsin–Bound Prostate–Specific Antigen and Complexed Prostate–Specific Antigen in Prostate Cancer Diagnosis
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/11173940