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Related Experiment Video

Updated: Jun 23, 2026

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An anthropomorphic pelvis phantom for MR-guided prostate interventions.

Dominik F Bauer1, Anne Adlung1, Irène Brumer1

  • 1Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Mannheim Institute for Intelligent Systems in Medicine, Heidelberg University, Mannheim, Germany.

Magnetic Resonance in Medicine
|October 15, 2021
PubMed
Summary

A novel pelvis phantom was developed for magnetic resonance (MR)-guided prostate interventions like MR-guided biopsy (MRGB). This phantom accurately guided interventions, proving valuable for training and system evaluation without patient risk.

Keywords:
interventionsmultimodalpelvisphantomprostate

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Area of Science:

  • Medical Imaging
  • Prostate Interventions
  • Phantom Development

Background:

  • Accurate targeting is crucial for MR-guided prostate interventions.
  • Existing phantoms may not fully replicate anatomical complexities or imaging properties.

Purpose of the Study:

  • To design and manufacture a human pelvis phantom for MR-guided prostate interventions.
  • To evaluate the phantom's utility in realistic interventional scenarios.

Main Methods:

  • A detailed pelvis phantom was created using ballistic gelatin, mimicking anatomical structures including prostate lesions, vessels, and lymph nodes.
  • Transrectal access was enabled via a hollow rectum.
  • A targeted inbore MR-guided biopsy (MRGB) was performed using an MRI-compatible remote-controlled manipulator.

Main Results:

  • The phantom exhibited realistic imaging characteristics for MRI, CT, and US.
  • A prostate lesion was successfully targeted with 3.5 mm accuracy during the MRGB procedure.
  • The phantom highlighted the rectal size limitation as a realistic challenge for needle placement.

Conclusions:

  • The developed pelvis phantom is a valuable tool for evaluating MRGB systems.
  • It offers a safe platform for interventionalists to practice and learn techniques for challenging prostate interventions.