Visibility of prostate cancer on transrectal ultrasound during fusion with multiparametric magnetic resonance imaging for biopsy.
OBJECTIVE
To determine transrectal ultrasound (TRUS) visibility of magnetic resonance (MR) lesions.


METHODS
Data from 34 patients with 56 MR lesions and prostatectomy were used. Five observers localized and determined TRUS visibility during retrospective fusion. Visibility was correlated to Prostate Imaging-Reporting and Data System (PIRADS) and Gleason scores.


RESULTS
TRUS visibility occurred in 43% of all MR lesions and in 62% of PIRADS 5 lesions. Visible lesions had a significantly lower localization variability. On prostatectomy, 58% of the TRUS-visible lesions had a Gleason 4 or 5 component.


CONCLUSIONS
Almost half of the MR lesions were visible on TRUS. TRUS-visible lesions were more aggressive than TRUS-invisible lesions.
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands. Electronic address: Wendy.vandeVen@radboudumc.nl.
Wendy J M
WJ
van de Ven
Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands.
J P Michiel
JP
Sedelaar
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
Marloes M G
MM
van der Leest
Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands.
Christina A
CA
Hulsbergen-van de Kaa
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
Jelle O
JO
Barentsz
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
Jurgen J
JJ
Fütterer
Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
Henkjan J
HJ
Huisman
D000368:Aged; D001706:Biopsy; D006801:Humans; D053783:Magnetic Resonance Imaging, Interventional / Q000379:methods*; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging / Q000379:methods*; D060787:Neoplasm Grading; D015588:Observer Variation; D011467:Prostate / Q000000981:diagnostic imaging / Q000473:pathology; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D012189:Retrospective Studies; D018084:Ultrasonography, Interventional / Q000379:methods*
Lesion visibility; MR-US fusion; PIRADS; Prostate cancer; Ultrasonography