Study Design
The patients’ medical records were retrospectively reviewed. Patients
age, prostate volume (PV) total PSA (tPSA) and fPSA level (fPSA), rate
of percentage of free to total prostate specific antigen (f/tPSA),
PSA-Density (PSA-D) (mL) level were evaluated. Also PSA velocity
(PSAv) was calculated according to difference of PSA
forms (tPSAv, fPSAv,
f/tPSAv and PSA-Dv) between first and
second biopsy.