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MRI Scanner Remote Control

Key Investigators

  • Ahmed Mahran (Brigham and Women's Hospital)
  • Franklin King (Brigham and Women's Hospital)
  • Nobuhiko Hata (Brigham and Women's Hospital)
  • Jean-Christophe Fillion-Robin (Kitware Inc.)

Project Description

Establish network communication between SRC and 3D Slicer to control MR's scan plane, and reterieve real-time images from the scanner remotely over the local area network. Python script running a JSON-based proprietary is used to communicate between the MR scanner and 3Dslicer.

Objective

  1. Establish Communication between MRI simulator and 3Dslicer
  2. Use volume reslice driver to Set a new scan position and orientation
  3. Reterieve DICOM images from simulator to 3Dslicer

Approach and Plan

  1. Define coordinate sytem of scanner
  2. Apply transform to convert from RAS To Scanner Coordinates (LPS)
  3. create needle model and use Volume Reslice Driver module to define a new orientation. Send coordinates to simulator

Progress and Next Steps

  • Improved associated python package (may be release publicly in the future)

    • change name to scanner_remove_control
    • update infrastructure to
      • compute coverage
      • execute test using pytest, start/stop scanner simulator automatically
  • Discussed approach to integrate the package with Slicer. Few options:

    • Switch the implementation to use websocket-client instead of websockets so that it works with Python 2
    • Leverage OpenIGTLink to send data to Slicer

Illustrations

Background and References