KOELIS Trinity®

MRI-Ultrasound Image-Guided Prostate Biopsy

KOELIS Trinity® a precise and versatile fusion biopsy system in the USA

Prostate cancer care relies, on the accuracy and reliability of diagnosis, but today traditional prostate biopsy is performed via simple ultrasound,  a blind procedure that can result in under or over treatment.

At Koelis® we decided to see beyond biopsy by offering an all-in-one solution providing accuracy and reliability at every step of the prostate cancer journey from biopsy and active surveillance to treatment and follow-up.


Compact all-in-one system with integrated 3D ultrasound   made to fit your clinic

Freehand, user-friendly and with minimal instrumentation KOELIS Trinity® effectively incorporates into any clinical practice.

Transperineal | Transrectal | Local Anesthesia


Accurate diagnosis made by 3D technologies with or without MRI

Clinical accuracy is at the heart of our technology. Our 3D transducers combined with exclusive OBT Fusion® technology detects the slightest patient movement and prostate deformation for an accurate guidance and recording of the procedure.


Intuitive interface made to focus on the essentials

KOELIS Trinity® innovative and intuitive interface elevates fusion biopsy to new levels of productivity by making exams faster, accurate and reliable.

The Koelis Trinity® is designed to facilitate a range of urologic procedures including:

  • Transrectal and Transperineal prostate biopsies, with or without MRI. Automatic adjustment to prostate motion (OBT Fusion®. No external sensor) to ensure fusion accuracy.
  • Accurate volumetric mapping or cartography which enables & facilitates follow up Biopsies, Active Surveillance and treatment decisions.
  • Diagnostic abdominal and small parts ultrasound
  • Rectal spacer injections
  • Focal therapy guidance for the treatment of prostate cancer using Cryotherapy or HiFU.

Koelis Trinity® the only system equipped with Organ-Based Tracking Fusion® technology

Watch this video to learn everything about OBT Fusion® technology

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Contact Us

Thank you for your interest in KOELIS®. Please contact us through the form below, and we will be sure to route your request to the appropriate party. We look forward to hearing from you! [email protected]

    Contact Information

    KOELIS Inc.

    116 Village Boulevard Suite 308
    Princeton, NJ 08540,
    United States

    Tel: +1-800-579-9451


    16 Chemin du Vieux Chêne
    38240 Meylan

    Tel: +33-4-58-17-68-10

    KOELIS Hong Kong

    21/F, On Hing Building
    1 On Hing Terrace, Central,
    Hong Kong

    Tel: +852-3971-9116

    Want to Implement KOELIS into your practice ? Contact a Sales Representative
    Download the KOELIS Trinity® brochure to learn more!