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Updated: Jun 6, 2026
Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy
Published on: April 9, 2019
Target motion compensation in MRI-guided prostate biopsy with static images
Hadi Tadayyon1, Andras Lasso, Sean Gill
1Department of Electrical and Computer Engineering, Queen's University, Kingston, Canada K7L3N6. hadi.tadayyon@queensu.ca
Purpose:
MRI-guided prostate needle biopsy requires compensation for organ motion between target planning and needle placement.
Methods:
We propose slice-to-volume registration algorithms for tracking the prostate motion. Three orthogonal intra-operative slices are acquired in the approximate center of the prostate and registered with a high-resolution target planning volume. Both rigid and deformable scenarios were implemented. MRI-guided robotic prostate biopsy cases were analyzed retrospectively.
Results:
Average registration errors were 2.55mm for the rigid algorithm and 2.05mm for the deformable algorithm.
Conclusion:
Slice-based tracking appears to be promising. Deformable registration does not seem warranted.
