2010 Winter Project Week MRI Guided Robotic Prostate Intervention

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  Projects List

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  A screenshot of the current version of the ProstateNav module during a phantom experiment

Key Investigators

• Andras Lasso (Queen's University)
• Junichi Tokuda (BWH)

Objective

We will continue to develop 3D Slicer's ProstateNav module for MRI-compatible devices for transrectal and transperineal prostate interventions. Based on our experiments in Fall 2009, we will improve the usability and stability of the module and prepare for clinical trials of transperineal device planned in Spring 2010.

Approach, Plan

A few complex developments (details to be specified) is planned to be completed during the project week.

Progress

The current version of the module is already tested in a few phantom experiments. Further improvements are needed to make the module usable in clinical trials.

References

• Lasso, A., J. Tokuda, S. Vikal, C. M. Tempany, N. Hata, and G. Fichtinger, "A generic computer assisted intervention plug-in module for 3D Slicer with multiple device support", Medical Image Computing and Computer-Assisted Intervention (MICCAI), London, UK, 2009
• Tokuda, J., G. Fischer, C. Csoma, S. DiMaio, D. Gobbi, G. Fichtinger, C. Tempany, and N. Hata, "Software strategy for robotic transperineal prostate therapy in closed-bore MRI", Medical image computing and computer-assisted intervention (MICCAI), vol. 11, no. Pt 2: Department of Radiology, Brigham, Women's Hospital, Harvard Medical School, 75 Francis St , Boston, MA 02115, USA tokuda@bwh harvard edu, pp. 701-709, 2008.

T-conf

Agenda

• Recent feedbacks
  • Transrectal device
    • Phantom study with new software to determine if it is feasible for clinical studies
    • Numerical results are the same
    • Advantage of 3D Slicer over the previous software: felxibility of 3D display where the needle, target, etc.
    • Issues: image quality for fiducial detection. The sequence has been optimized for Philips scanner at NIH, but not for Siemens at JHH. Currently the accuracy of registration is 1.5mm at NIH, while it is 2.5mm at JHH.
    • 3D Slicer's performance issue: fiducial, slice view (zooming), DICOM compatibility (Slicer crashes when it loads DICOM data from the scanner... but the data might have some errors in location field.)
  • Transperineal device
    • Repeatability is quite good, but registration accuracy should be improved.
    • DICOM transfer??
• The goal of Winter Project Week
  • Improved Z-frame tracking (multi-slice registration)
  • Prepare for the clinical application (biopsy)
  • Improved GUI
  • Tina suggested to integrate prostate integration with ProstateNav Module
• What should be done before the week?
  • Junichi will work on multi-slice registration
  • DICOM transfer initial implementation?
• What should be done after the week
  • Testing on multiple platforms
  • Write test script???
  • Checking memory leaks
  • Uploading to the trunk repository
  • Documentation