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Promaxo MRI at the Center for Advanced Urology

Dr. Diamond Now Offers the Promaxo In-Office MRI System for Prostate Biopsies

The Center for Advanced Urology is proud to introduce a new, innovative, in-office MRI system with a more targeted approach to identifying prostate cancer. The Promaxo MRI allows Dr. Stuart Diamond to target lesions with better results over the standard of care1,2 via the perineum (not your rectum) to collect prostate tissue. The MRI system helps Dr. Diamond target abnormalities that may have otherwise gone undetected using a standard ultrasound-guided biopsy.1 The Center for Advanced Urology is pleased to be one of the first facilities in the area to offer this powerful solution to our patients.

Transrectal Ultrasound-guided Biopsy
Promaxo Transperineal Biopsy

Benefits of Promaxo MRI-Guided Prostate Biopsy

The MRI system does not require a transrectal probe or endorectal coil to be inserted into the patient’s rectum. Best of all, the machine is whisper quiet, and there’s no need to go inside the MRI because of its unique single-sided and open design.

Promaxo MRI System
The unique design of the Promaxo MRI does not require an endorectal coil or transrectal probe for improved patient comfort.

How the Promaxo MRI Works

Prior to the biopsy, a patient first undergoes a pelvic MRI. A trained physician then reviews the patient’s MRI, reviews results, and highlights any suspicious regions of interest within the prostate. This information is then automatically synchronized with the Promaxo MRI in our office.

On the day of the biopsy, we acquire the Promaxo MRI and then co-register it with the previous MRI that the radiologist marked up. We then create a plan in real-time by locating the targets within any areas of interest and accessing them transperineally.

Next Steps

Please contact our office to learn if an in-office MRI-guided prostate biopsy is right for you. Schedule an appointment today.


  • 1Sze, C., et a.l (2023). Feasibility and preliminary clinical tolerability of low-field MRI-guided prostate biopsy. The Prostate, 83(7), 656–662. https://doi.org/10.1002/pros.24499
  • 2Price, John H., et al. “Accurate Prostate Biopsies Using Low-Field Portable Interventional MRI in an Ambulatory Surgical Center.” IPCU, 2024.

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