Micro-UltraSound In Cancer - Active Surveillance

This study will compare the two imaging modalities (MRI and micro-ultrasound) during Active Surveillance of prostate cancer (PCa). Progression to clinically significant PCa will be assessed by first taking micro-US targeted samples (while blinded to MRI results), followed by MRI targeted samples, finishing with 12 systematic biopsy cores. The primary goal is to compare microUS to MRI for the detection of ≥GG2 PCa at confirmatory biopsy. This study will also collect blood samples from participants to be used for future biomarker studies.