Improved matrix inversion in image plane parallel MRI

Combining RF encoding with parallel imaging: a simulation study

“…This suggestion links to a wider debate that has mostly been conducted at conferences (e.g. [12][13][14][15][16]) about different patterns of gradient encoding and their benefits in terms of noise and artefact performance when used with PI.…”

Imposing spatio-temporal support in magnetic resonance angiographic imaging

“…It also suits SENSE-like methods, since block-based sampling of k-space allows the recovery problem to be partitioned into a large number of smaller problems. [12][13][14][15] However, for achieving the high temporal resolution required in CE-MRA or other applications of MRI associated with movement, such as cardiovascular imaging, radial or spiral sampling trajectories may have advantages.…”

A statistical method for display and segmentation of 3D image data

“…In order to provide improved time-resolved MRA image sequences of the blood vessels, our reconstruction algorithms [8], [9], [10] require an accurate segmentation of the relatively noisy 3D data set into vessel and background. The method described in Section I produces a segmentation with many false detections because of the effect of overlying structures and the relatively noisy background in MIP images.…”

“…We have reported a method for accelerated parallel MRA which relies on the use of a region of support (ROS), i.e. a region outside of which significant changes due to the presence of contrast are unlikely to occur [8], [9], [10]. Knowledge of the ROS allows the elimination of the regions outside the object from the reconstruction, as they are known not to contribute to the signals received in the scanner coils.…”