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Improvement of spatial resolution of keyhole effect images
1Radiologische Klinik, Universität Freiburg, Germany.
Magnetic Resonance in Medicine
|February 20, 1998
Abstract:
An algorithm is proposed which improves the spatial resolution of difference or effect images acquired with a keyhole sampling strategy. This new reconstruction algorithm uses a priori information about sharp structures in the observed signal changes from a high resolution reference scan. The potential of this algorithm even being able to deal with noisy effect images is illustrated by application to functional MRI data.