Mayo Foundation for Medical Education and Research

Roger C Grimm

Stephen J Riederer

Armando Manduca

Edward Brian Welch

Clifford R Jack, Jr

Soudabeh Kargar

Eric A Borisch

Systems and methods for generating a three-dimensional image of an object from multiple two-dimensional images acquired using a magnetic resonance imaging ('MRI') system are provided. The three-dimensional image has high spatial resolution in all three spatial dimensions. The multiple two-dimensional images can be acquired in one or more orientations (e.g., axial, coronal, sagittal, oblique). The in-plane resolution of these images can be several times finer than the through-plane resolution (i.e., the slice thickness). The images are Fourier transformed along their respective slice orientation direction and processed using the slice profile to generate a Fourier representation of the three-dimensional image with the target spatial resolution. Inverse Fourier transforming this Fourier representation generates the desired three-dimensional image.

Synthetic three-dimensional magnetic resonance imaging

A series of fMRI image frames are acquired along with interleaved navigator signals. The navigator signals are acquired while three orthogonal readout gradients are applied such that a spherical surface is sampled in k-space. The navigator signals are analyzed to measure subject rotational and translational motion during the scan.

Reduction of motion artifact in NMR images using spherical navigator signals

Growing community of inventors

Rochester, MN, United States of America

Roger C Grimm