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Updated: Mar 21, 2026
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Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy
Published on: April 9, 2019
22.7K
Open-Source Platform for Prostate Motion Tracking During in-Bore Targeted MRI-Guided Biopsy
Peter A Behringer1, Christian Herz1, Tobias Penzkofer2
1Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA.
Clinical Image-Based Procedures : From Planning to Intervention : International Workshop, CLIP ..., Held in Conjunction with MICCAI ... : Revised Selected Papers. CLIP (Workshop)
|May 3, 2016
Summary
This study introduces open-source software for real-time prostate tracking during MRI-guided biopsies, improving accuracy and reducing procedure time. The tool enhances targeted cancer sampling by compensating for prostate motion.
Area of Science:
- Medical Imaging
- Software Engineering
- Oncology
Background:
- Accurate sampling of suspicious prostate lesions is vital for effective cancer diagnosis.
- Prostate motion during biopsies complicates precise targeting.
- Existing methods may lack real-time adjustments for intra-procedural motion.
Purpose of the Study:
- To develop and evaluate an open-source software for intra-procedural prostate and biopsy target tracking.
- To improve the accuracy of targeted prostate biopsies using deformable image registration.
- To provide a clinically applicable tool for MRI-guided prostate interventions.
Main Methods:
- Implementation of an open-source software in 3D Slicer for deformable image registration-based prostate tracking.
- Retrospective evaluation using data from 25 in-bore MRI-guided prostate biopsy cases (343 registrations).
- Comparison of software performance using different versions of the Insight Segmentation Toolkit (ITK), assessing accuracy, computation time, and initialization sensitivity.
Main Results:
- The software demonstrated improved prostate tracking accuracy, with an average Dice similarity coefficient improvement of 0.17 (p < 0.0001).
- Registration accuracy was not significantly affected by operator variability.
- A significant decrease in computation time was observed with the latest ITK version, enhancing clinical usability.
Conclusions:
- A fully functional, open-source software tool for intra-procedural prostate tracking has been developed.
- The software is ready for prospective evaluation in clinical MRI-guided prostate biopsy procedures.
- This tool has the potential to enhance the precision and efficiency of targeted prostate biopsies.
