2010 Ismrm Recon Challenge - Need For Speed

<strong><em>Need for Speed</em></strong>. Data were simulated using collected projection X-ray of an arterial bolus injection in a patient with an AVM. X-ray data were collected 3 frames per second, for a total of 10 seconds (31 collected frames) which span wash-in to wash-out. These were linearly interpolated in time between frames to create a total of 200 temporal images, each with 512x512 resolution. B1-maps (provided with data) derived from an axial slice through a water phantom using an 8-channel head coil were superimposed on the image to create 8 “coil” images. Independent noise was added to each channel. The data were synthesized over 200 trajectories, each with 2000 points. Data for each trajectory are synthesized from one temporal frame of the time series.<em> </em><br> <br> <strong>Click here</strong> to get descriptions of trajectories (the pdf files), read/write code for C and Matlab, and B₁maps. <br> <strong>Click here</strong> for the NFS truth data set, which has no header, is floating point (4 byte) real data, and arranged as a 3D array of 512x512x37. You may then choose from any of the following sets: A. <strong>Click here</strong> to get a <strong>Spiral</strong> trajectory coordinates and data. (trajectory designed by Nick Zwart, <br> Barrow Neurological Institute) B. <strong>Click here</strong> to get a <strong>PR</strong> trajectory coordinates and data. (trajectory designed by Alexey Samsonov, <br> University of Wisconsin)