2010 Reconstruction Challenge

Submission Deadline:  13 January 2010, 23:59 EST
The Reconstruction Challenge Deadline has passed. The submission site is now closed.


Reconstruction Challenge Team:
Eric Aboussouan
Ajit Devaraj
Ken Johnson
Jim Pipe
Ryan Robison
Nick Zwart
 

ISMRM will be conducting a reconstruction challenge for the 2010 annual meeting in Stockholm.  Participants download data, and submit their reconstructed images for a panel of expert radiologists to compare.  Three challenges are available:

1.  Need for Speed.  A dynamic projection X-ray data of a bolus injection was used to generate MR angiography data set, using several different (temporally undersampled) trajectories.  Pick your favorite trajectory, and try to keep up with X-ray, if you dare!

2.  Double Vision.  A set of axial fat-sat images were taken through the lower abdomen using a short ADC, Cartesian set.  With a collected B₀ field map, data for several long-ADC, non-Cartesian data sets were generated with off-resonance corruption.  Can you clear things up?

3.  Piece of the Puzzle.  A high-resolution image of a (static) knee was obtained, and participants are given roughly 20% of the data using one of several trajectories.  With an 8-coil array helping you out, can you fill in the missing pieces?

Anyone may download data from this site and submit their reconstructed images for the contest. To be considered as a finalist, applicants must register for the 2010 annual meeting.  A panel of expert Radiologists will compare the images, and choose a winner in each of the three categories.  These will be presented during the Wednesday morning plenary session.  Winners will each be offered a chance to give a 1-slide, 1-minute presentation of their method during the plenary.

To participate, follow these steps.

1.  Please see the detailed instructions, or click here to download the instructions in .pdf format.  You may want to read this before proceeding.

2.  If you still have questions, please see the FAQ page (last updated November 19), or click here to download the FAQ's in .pdf format (last updated November 19).  Please check this FAQ frequently, as it will be updated.  Questions not answered by this FAQ may be emailed to jim.pipe@chw.edu  (please put RECON CHALLENGE in the subject line), and answers will be given in the next updated FAQ.

3.  Download the data of your choice for the challenge you are interested in (see below).    Please check this site again later, as there may be additional trajectories posted for the different challenges in the next few weeks.  As stated in the FAQ, you may compete in as many challenges as you wish, and with as many data sets as you wish, but different data sets for the same challenge may not be combined in any way.

4.  In October or November, a method for submitting your results will be posted on this website.  The due date for final submissions will be Wednesday, 13 January 2010, 23:59 EST.

DOWNLOAD INSTRUCTIONS:

1.  Need for Speed

For all Need for Speed Participants - click here NFS_materials.zip to get descriptions of trajectories (the pdf files), read/write code for C and Matlab, and B₁ maps.

You may then choose from any of the following sets:

A.  Click here NFS_NZWA_09AUG06.zip to get a Spiral trajectory coordinates and data. (trajectory designed
      by Nick Zwart, Barrow Neurological Institute)

B.  Click here NFS_ASAM_09AUG04.zip to get a PR trajectory coordinates and data. (trajectory designed
      by Alexey Samsonov, University of Wisconsin)

2.  Double Vision

For all Double Vision participants, click here DV_materials.zip to get descriptions of trajectories (the pdf files), read/write code for C and Matlab, B₀ maps, and B₁ maps.

You may choose from any one of the following sets:

A.  Click here DV_CMEY_09JUL06.zip to get a Spiral trajectory coordinates and data. (trajectory designed
      by Craig Meyer, University of Virginia)

B.  Click here DV_JPIP_09SEP08.zip to get an EPI trajectory coordinates and data. (trajectory designed
     by Jim Pipe, Barrow Neurological Institute)

3.  Piece of the Puzzle

For all Piece of the Puzzle participants, click here POP_materials.zip to get descriptions of trajectories (the pdf files), read/write code for C and Matlab, and B₁ maps.

You may choose from any one of the following sets:

A.  Click here POP_MLUS_09AUG03.zip to get a Random - Poisson Disk trajectory coordinates
     and data.   (trajectory designed by Miki Lustig, Stanford University)

B.  Click here POP_ADEV_09AUG07.zip to get a Spiral Projection (low resolution) trajectory coordinates
     and data.  (trajectory designed by Ajit Devaraj, Barrow Neurological Institute)

C.  Click here POP_ADEV_09AUG10.zip to get a Spiral Projection (high resolution) trajectory coordinates
      and data.  (trajectory designed by Ajit Devaraj, Barrow Neurological Institute)

D.  Click here to get a POP_BHAR_09AUG06.zip Stack-of-Spirals trajectory coordinates and data. 
      (trajectory designed by Brian Hargreaves, Stanford University)

1.  Please complete the fillable .pdf form located here.  Please be sure to "submit" the form upon completion.  This form will allow us to identify your file upload. 

2.  Go to:   and upload your file.