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Updated: Aug 15, 2026

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy
Published on: April 9, 2019
Suspicious findings on micro-ultrasound imaging and early detection of prostate cancer
Sangeet Ghai1, Theodorus Van der Kwast2
1Joint Department of Medical Imaging, University of Toronto, University Health Network - Mount Sinai Hospital-Women's College Hospital, Toronto General Hospital, Toronto, ON, Canada.
Abstract:
The ExactVu™ Micro-Ultrasound system is a new high resolution imaging system for visualizing the prostate and has been FDA, CE, and Health Canada approved for visualization and biopsy of the prostate. The PRI-MUS™ (Prostate Risk Identification for Micro-Ultrasound) protocol has previously been demonstrated to correlate with risk of prostate cancer and severity of cancer. Here we present a case where a healthy 50 year old subject with no known risk factors volunteered to test the ExactVu system and was found to harbour multiple PRI-MUS 3-5 lesions. This prompted PSA testing, biopsy and eventual diagnosis of significant prostate cancer.
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