General Electric Company

Charles Robert Michelich

Ersin Bayram

Anthony Tienhuan Vu

Shaorong Chang

Zachary Slavens

Ling Sun

Anja Kammeier

Dawei Gui

Dashen Chu

Ramesh Venkatesan

Reed Frederick Busse

Eric M Printz

Vijay Shivalingappa Nimbargi

Brent Robinson

Various methods and systems are provided for selecting radio frequency (RF) coil array for magnetic resonance imaging (MRI). In one embodiment, the method comprises grouping the plurality of coil elements into receiving elements groups (REGs) according to REGs information, generating channel sensitivity maps for the plurality of coil elements, generating REG sensitivity maps based on the REGs information and the channel sensitivity maps, selecting one or more REGs based on the REG sensitivity maps and a region of interest (ROI), and scanning the ROI with the coil elements of the one or more selected REGs being activated and the coil elements not in any selected REGs being deactivated. In this way, coil arrays may be automatically selected for improved image quality of the MRI.

Methods and systems for coil selection in magnetic resonance imaging

Various methods and systems are provided for selecting coil elements of a plurality of coil elements of a radio frequency (RF) coil array for use in a magnetic resonance imaging (MRI) system. In one example, a method includes grouping the plurality of coil elements into receive elements groups (REGs) according to REGs information, generating channel sensitivity maps for the plurality of coil elements, generating REG sensitivity maps based on the REGs information and the channel sensitivity maps, labeling each REG as either selectable or not selectable based on the REG sensitivity maps, selecting one or more REGs from the selectable REGs based on the REG sensitivity maps and a region of interest (ROI), and scanning the ROI with the coil elements in the one or more selected REGs being activated and the coil elements not in any selected the other REGs being deactivated.

Method and systems for coil selection in magnetic resonance imaging

A method for acquiring magnetic resonance (MR) data for a three-dimensional (3D) dynamic study includes partitioning a k-kplane with a plurality of views into an inner region and a plurality of outer regions. The inner region includes a set of views in a central region of the k-kplane and each outer region includes a plurality of views outside of the central region of the k-kplane. The method also includes partitioning each outer region into a plurality of radial fan beam segments, defining a first view ordering for the inner region and defining a second view ordering for each outer region. Once the k-kplane is partitioned and the view orderings are defined, MR data is acquired for the set of views in the inner region and for all of the views in each of the outer regions in an alternating acquisition order where the set of views in the inner region are acquired more frequently than the views in each of the outer regions. At least one MR image is generated based on the acquired MR data.

Method and apparatus for view ordering of magnetic resonance imaging data for dynamic studies

A multi-shot three-dimensional (3D) magnetic resonance imaging (MRI) data view-ordering strategy for uniform or variable density k-space sampling schemes is presented. The k-kplane is partitioned into multiple wedge-shaped 'blades' (or radial fan beams). The angular size of individual blades may be adjusted according to the desired number of views for each blade. Each blade includes views near the origin that contain low-frequency information about the imaged object such that views having the most desirable characteristics may be used to fill the central portions of k-space.

Method and apparatus for acquiring magnetic resonance imaging data

A magnetic resonance imaging (MRI) apparatus includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet. An RF transceiver system and an RF switch are controlled by a pulse module to transmit and receive RF signals to and from an RF coil assembly to acquire MR images. The MRI apparatus also includes a computer programmed to calculate a cost for each point to be acquired in k-space, acquire MR data based on the calculated cost for each point, and generate an MR image using the acquired MR data.

System and method of angular elliptic centric view ordering for 3D MR acquisitions

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Waukesha, WI, United States of America

Charles Robert Michelich