Abstract #3708
High framerate positive contrast needle tracking: Compressed Sensing and view-sharing accelerated co-RASOR reconstruction
Frank Zijlstra 1 , Bo S. van Leeuwen 2 , and Peter R. Seevinck 1
1
Image Sciences Institute, UMC Utrecht,
Utrecht, Netherlands,
2
Dept.
of Clinical Sciences of Companion Animals, Faculty of
Veterinary Medicine, Utrecht University, Utrecht,
Netherlands
We propose a method for fast MRI needle tracking using
Compressed Sensing, view-sharing and co-RASOR
reconstruction of a 2D radial UTE acquisition. The
method reconstructs positive contrast at the location of
the needle at a high temporal resolution, as well an
anatomical background image at a lower temporal
resolution, but with increased spatial resolution.
Results in a phantom show good needle contrast at 4x
acceleration, resulting in about 4 frames per second for
the needle image and about 1 frame per second for the
background image.
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