Laurence Klotz, MD, FRCSC, presented “Optimization of Prostate Biopsy – Micro-Ultrasound versus MRI (OPTIMUM)” during the 8th Global Summit on Precision Diagnosis and Treatment of Prostate Cancer on October 8, 2024.
How to cite: Klotz, Laurence. “Optimization of Prostate Biopsy – Micro-Ultrasound versus MRI (OPTIMUM).” October 8, 2024. Accessed Oct 2026. https://grandroundsinurology.com/optimization-of-prostate-biopsy-micro-ultrasound-versus-mri-optimum/
Optimization of Prostate Biopsy – Micro-Ultrasound versus MRI (OPTIMUM) – Summary
Laurence Klotz, MD, FRCSC, introduces the OPTIMUM trial, a landmark international study comparing micro-ultrasound and MRI for prostate cancer detection. In this 9-minute presentation, Dr. Klotz explains that micro-ultrasound, operating at 29 MHz, offers three times greater resolution than conventional ultrasound. Using a PRIMUS scoring system analogous to PI-RADS, micro-ultrasound demonstrates its utility in identifying highly sensitive lesions.
Dr. Klotz details the trial’s three-arm design, which involves MRI with conventional ultrasound, MRI with micro-ultrasound, and micro-ultrasound alone to assess non-inferiority and complementary detection capabilities.
Dr. Klotz emphasizes the trial’s importance for minimizing bias and improving diagnostic practices, particularly given its potential to replace or complement MRI. He highlights the study’s robust design, comprehensive objectives, and international collaboration, anticipating its transformative impact on prostate cancer diagnosis and management.
The Global Summit on Precision Diagnosis and Treatment of Prostate Cancer is a unique multi-disciplinary forum organized to inform the key health care stakeholders about the emerging advances in clinical case and research and create a consensus-based vision for the future of precision care and educational and research strategy for its realization. The mission of the Summit is to fill the currently existing gap between the key experts of in vivo imaging, the world authorities in the in vitro fluid- and tissue-based molecular diagnostics, including genomics, and thought leaders in the development of novel observation strategies (e.g., active surveillance, or AS) and therapeutic interventions.
ABOUT THE AUTHOR
Laurence Klotz, MD, FRCSC, is a Professor of Surgery at the University of Toronto and the Sunnybrook Chair of Prostate Cancer Research at Sunnybrook Health Sciences Centre in Ontario, Canada. Dr. Klotz was the founding editor-in-chief of both the Canadian Journal of Urology and the Canadian Urology Association Journal (CUAJ) and he is now editor emeritus of the CUAJ. Dr. Kotz’s research interests include active surveillance, micronutrients, and prostate cancer prevention.
