Transperineal targeted prostate biopsy with real-time fusion imaging of multiparametric magnetic resonance imaging and transrectal ultrasound / 中华超声影像学杂志

ABSTRACT

Objective To evaluate the value of transperineal targeted biopsy with real-time fusion images of transrectal ultrasound (TRUS)and multiparametric magnetic resonance imaging (mpMRI)for the diagnosis of prostate cancer (PCa).Methods Clinical and imaging data of 62 consecutive patients suspected of PCa at the mpMRI scan and PSA>4.0 μg/L were retrospectively analyzed.Targeted biopsies (TB)were carried out for each cancer-suspicious lesion,and followed a systematic 12-core biopsy (SB) protocol.Pathological findings of TB and SB were analyzed.Results The age of the patients was (68.38± 6.57)years (range 5 1 -79 years).The preoperative PSA value was (10.21 ±5.57)μg/L (range 4.5 -30.1μg/L).Preoperative prostate volume was (34.05±9.86)ml (range 19-64 ml).The PCa patients detected by SB and/or TB were 34 (54.8%).Cancer-detected rates of SB and TB cores were 7.53% and 26.2%, respectively (P <0.001).The positive core length of SB and TB cores were (3.71 ±2.77)mm (range 1 -14 mm)and (5.00±3.04)mm (range 2-1 7 mm),respectively (P =0.016).The positive core percent of SB and TB cores were (28.77 ± 20.13 )% (range 7 - 100%)and (35.76 ± 1 8.73 )% (range 1 1 % - 100%), respectively (P =0.048).Moreover,clinically cores detected by the SB and TB for final diagnosis of PCa were 19 cores (2.6%)and 48 cores (1 8.5%),respectively (P < 0.001 ).Conclusions Transperineal TB using real-time TRUS and mpMRI fusion imaging can improve sampling quality and elevate clinically detection rate of PCa when application combined with SB.