# Increasing efficiency of parallel imaging for 2D multislice acquisitions

@article{Honal2009IncreasingEO, title={Increasing efficiency of parallel imaging for 2D multislice acquisitions}, author={Matthias Honal and Simon Bauer and Ute Ludwig and Jochen Leupold}, journal={Magnetic Resonance in Medicine}, year={2009}, volume={61} }

Parallel imaging algorithms require precise knowledge about the spatial sensitivity variation of the receiver coils to reconstruct images with full field of view (FOV) from undersampled Fourier encoded data. Sensitivity information must either be given a priori, or estimated from calibration data acquired along with the actual image data. In this study, two approaches are presented, which require very little or no additional data at all for calibration in two‐dimensional multislice acquisitions…

## 19 Citations

### Cross-sampled GRAPPA for parallel MRI

- Computer Science2010 Annual International Conference of the IEEE Engineering in Medicine and Biology
- 2010

A cross sampling method is proposed to acquire the ACS lines orthogonal to the reduced lines, which can effectively reduce the aliasing artifacts of GRAPPA when high acceleration is desired.

### Improving GRAPPA using cross‐sampled autocalibration data

- Computer ScienceMagnetic resonance in medicine
- 2012

Reconstruction results from simulations, phantom and in vivo human brain experiments have distinctly demonstrated that the proposed method, named cross‐sampled generalized autocalibrating partially parallel acquisitions, can effectively reduce the aliasing artifacts of conventional generalized Autocalibration signal (ACS) acquisitions when very few ACS lines are acquired, especially at high outer k‐space reduction factors.

### Iterative reconstruction method for three- dimensional non-Cartesian parallel MRI

- Medicine
- 2011

A trust region based step-ratio method that iteratively calculates the penalty coefficient was proposed for the penalty functions and showed higher ROI SNR, two-dataSNR, and lower background noise over conventional method with comparable RMSE, NMI and JE to the reference image at reduced computer resource requirement.

### A kernel approach to parallel MRI reconstruction

- Computer Science2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro
- 2011

Experimental results demonstrate that the proposed kernel GRAPPA method can significantly improve the reconstruction quality over the existing methods.

### Convex Optimization for 3D Parallel MRI Reconstruction

- PhysicsICSPS 2016
- 2016

It is shown that the magnitude of 3D image is constrained in a convex hull and thus can be solved by a two-step convex optimization procedure, resulting in improved reconstructed image with lower meansquared error.

### Nonlinear GRAPPA: A kernel approach to parallel MRI reconstruction

- Computer ScienceMagnetic resonance in medicine
- 2012

Experimental results using phantom and in vivo data demonstrate that the proposed nonlinear GRAPPA method can significantly improve the reconstruction quality overGRAPPA and its state‐of‐the‐art derivatives.

### PROMISE: Parallel‐imaging and compressed‐sensing reconstruction of multicontrast imaging using SharablE information

- MedicineMagnetic resonance in medicine
- 2015

The target of this work is to improve existing CS‐PPI methods for multicontrast imaging, especially for two‐dimensional imaging.

### Compensation of breathing motion artifacts for MRI with continuously moving table

- Medicine, PhysicsMagnetic resonance in medicine
- 2010

A technique for the reduction of breathing‐motion artifacts for MRI with continuously moving table is presented, which reconstructs motion‐consistent volumes from data acquired during free breathing, and is shown to additionally reduce blurring, misregistrations, and signal cancellations in the reconstructed images.

### Whole-Body Continuously Moving Table MRI: Principles and Applications

- Medicine
- 2010

An overview of the different approaches to CMT imaging is given and basic principles of two- and three-dimensional techniques are discussed with emphasis on performance and image-artifact issues.

### Magnetic resonance imaging: Review of imaging techniques and overview of liver imaging.

- Medicine, PhysicsWorld journal of radiology
- 2010

Magnetic resonance imaging (MRI) of the liver is slowly transitioning from a problem solving imaging modality to a first line imaging modality for many diseases of the liver. The well established…

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