Prostate cancer detection rates of magnetic resonance imaging-guided prostate biopsy related to Prostate Imaging Reporting and Data System score.
OBJECTIVE
Recent studies have shown that multiparametric magnetic resonance imaging and magnetic resonance imaging-guided prostate biopsy in patients with suspected prostate cancer increase detection rate and clinical significance of diagnosed tumors. Purpose of this study is to evaluate the detection rates of prostate cancer for magnetic resonance imaging-guided prostate biopsy related to Prostate Imaging Reporting and Data System score.


METHODS
We included all patients with cancer-suspicious lesions on 3-Tesla multiparametric magnetic resonance imaging-prostate who underwent magnetic resonance imaging-guided prostate biopsy in Haga Teaching Hospital between January 2013 and January 2015.


RESULTS
In total, 155 patients were included. In 100 of 155 (65 %) men, MRI-guided prostate biopsy was positive for prostate cancer. No biopsy of PI-RADS 2-lesions was positive. PI-RADS 3- and 4-lesions were, respectively, in 10 and 77 % prostate cancer positive. Biopsies of PI-RADS 5-lesions were in 89 % of the cases positive. The majority of detected cancers (63 %) were Gleason score ≥ 7, and this number increases to 75 % in positive PI-RADS 5-lesions.


CONCLUSIONS
Magnetic resonance imaging-guided prostate biopsy has a high detection rate of prostate cancer in men with cancer-suspicious lesions on multiparametric magnetic resonance imaging-prostate, and this rate (65 %) increases with the Prostate Imaging Reporting and Data System score (81 % in PI-RADS 4- and 5-lesions).
Department of Urology, Haga Teaching Hospital, Leyburg 275, 2545 CH, The Hague, The Netherlands. d.f.osses@hagaziekenhuis.nl.
Daniël F
DF
Osses
Department of Urology, Haga Teaching Hospital, Leyburg 275, 2545 CH, The Hague, The Netherlands.
Joost J
JJ
van Asten
Department of Radiology, Haga Teaching Hospital, The Hague, The Netherlands.
Gerard J
GJ
Kieft
Department of Urology, Haga Teaching Hospital, Leyburg 275, 2545 CH, The Hague, The Netherlands.
Jasper D
JD
Tijsterman
D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D061705:Image-Guided Biopsy; D053783:Magnetic Resonance Imaging, Interventional; D008297:Male; D008875:Middle Aged; D011467:Prostate / Q000000981:diagnostic imaging* / Q000473:pathology*; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D012189:Retrospective Studies
Detection rate; Multiparametric magnetic resonance imaging; PI-RADS score; Prostatic neoplasms; Targeted biopsy