INVITED REVIEW
Year : 2014  |  Volume : 16  |  Issue : 4  |  Page : 522-529

Targeted prostate biopsy: value of multiparametric magnetic resonance imaging in detection of localized cancer


1 Department of Urology, University of California, Los Angeles, USA
2 Department of Pathology, University of California, Los Angeles, USA

Correspondence Address:
Leonard S Marks
Department of Urology, University of California, Los Angeles
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1008-682X.122864

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Prostate cancer is the second most common cancer in men, with 1.1 million new cases worldwide reported by the World Health Organization in one recent year. Transrectal ultrasound (TRUS)-guided biopsy has been used for the diagnosis of prostate cancer for over 2 decades, but the technique is usually blind to cancer location. Moreover, the false negative rate of TRUS biopsy has been reported to be as high as 47%. Multiparametric magnetic resonance imaging (mp-MRI) includes T1- and T2-weighted imaging as well as dynamic contrast-enhanced (DCE) and diffusion-weighted imaging (DWI). mp-MRI is a major advance in the imaging of prostate cancer, enabling targeted biopsy of suspicious lesions. Evolving targeted biopsy techniques-including direct in-bore biopsy, cognitive fusion and software-based MRI-ultrasound (MRI-US) fusion-have led to a several-fold improvement in cancer detection compared to the earlier method. Importantly, the detection of clinically significant cancers has been greatly facilitated by targeting, compared to systematic biopsy alone. Targeted biopsy via MRI-US fusion may dramatically alter the way prostate cancer is diagnosed and managed.


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