Keywords: Image Reconstruction, New Trajectories & Spatial Encoding Methods, Field-of-view
Motivation: MRI acceleration increases the utility of the machine and increases the robustness to motion.
Goal(s): In this work, we present a completely novel method to accelerate MRI.
Approach: We propose to have a technologist supply a contour surrounding the patient, a non-rectangular field-of-view. We have created a method to reduce the number of samples required while maintaining high image quality for the contoured region.
Results: We present results of the ankle, knee, and brain where we are able to reconstruct an image of high quality with fewer samples that could be collected with a faster scan.
Impact: A non-rectangular field-of-view can better separates the patient's anatomy from the surrounding air than a rectangular field-of-view would. We present a non-iterative reconstruction algorithm that takes advantage of the non-rectangular field-of-view and reconstructs a high-quality image from fewer samples.
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