2009 Summer Project Week 4D Gated US In Slicer

• 

  Project Week Main Page

• 

  Schematic of 3D ultrasound reconstruction

• 

  Schematic of gated (4D) ultrasound reconstruction

• 

  Example reconstructed ultrasound volume of a porcine heart, at 0% R-R

• 

  Example reconstructed ultrasound volume of a porcine heart, at 50% R-R

Key Investigators

• Robarts Research Institute / University of Western Ontario: Danielle Pace

Objective

The objective of this project is to enable gated four-dimensional ultrasound reconstruction in Slicer3.

We have previously written and validated software that performs 4D ultrasound reconstruction from a tracked 2D probe in real-time (Pace et al, SPIE 2009). This allows the user to interact with the reconstructed time series of 3D volumes as they are being acquired and to adjust the acquisition process as necessary. The user-interface for the reconstruction software has been implemented within the Atamai Viewer framework. During the project week, we will integrate it into Slicer3.

Approach, Plan

We plan to interface the reconstruction software with Slicer3 using the SynchroGrab framework described by (Boisvert et al, MICCAI 2008). A command-line interface and a calibration file will allow the user to specify the reconstruction parameters. After the gated reconstruction is performed, the resulting time series of volumes will be transferred to Slicer3 using the OpenIGTLink protocol.

Progress

Stay tuned!

References

• Pace DF, Wiles AD, Moore J, Wedlake C, Gobbi DG, Peters TM, Validation of four-dimensional ultrasound for targetting in minimally-invasive beating-heart surgery, Proceedings of SPIE Medical Imaging: Visualization, Image-Guided Procedures and Modeling, 2009.
• Boisvert J, Gobbi DG, Vikal S, Rohling R, Fichtinger G, Abolmaesumi P, An open-source solution for interactive acquisition, processing and transfer of interventional ultrasound images, Workshop on Systems and Architectures for Computer Assisted Interventions, MICCAI 2008.