# Golden‐angle radial sparse parallel MRI: Combination of compressed sensing, parallel imaging, and golden‐angle radial sampling for fast and flexible dynamic volumetric MRI

@article{Feng2014GoldenangleRS, title={Golden‐angle radial sparse parallel MRI: Combination of compressed sensing, parallel imaging, and golden‐angle radial sampling for fast and flexible dynamic volumetric MRI}, author={Li Feng and Robert Grimm and Kai Tobias Block and Hersh Chandarana and Sungheon Gene Kim and Jian Xu and Leon Axel and Daniel K. Sodickson and Ricardo Otazo}, journal={Magnetic Resonance in Medicine}, year={2014}, volume={72} }

PURPOSE
To develop a fast and flexible free-breathing dynamic volumetric MRI technique, iterative Golden-angle RAdial Sparse Parallel MRI (iGRASP), that combines compressed sensing, parallel imaging, and golden-angle radial sampling.
[... ] Key MethodMETHODS
Radial k-space data are acquired continuously using the golden-angle scheme and sorted into time series by grouping an arbitrary number of consecutive spokes into temporal frames. Expand

## 484 Citations

Dynamic contrast‐enhanced MRI of the prostate with high spatiotemporal resolution using compressed sensing, parallel imaging, and continuous golden‐angle radial sampling: Preliminary experience

- Physics, MedicineJournal of magnetic resonance imaging : JMRI
- 2015

MRI of the prostate is demonstrated with both high spatial and temporal resolution via a combination of golden‐angle radial k‐space sampling, compressed sensing, and parallel‐imaging reconstruction (GRASP) and to compare image quality and lesion depiction between GRASP and conventional DCE in prostate cancer patients.

Influence of temporal regularization and radial undersampling factor on compressed sensing reconstruction in dynamic contrast enhanced MRI of the breast

- MedicineJournal of magnetic resonance imaging : JMRI
- 2016

To evaluate the influence of temporal sparsity regularization and radial undersampling on compressed sensing reconstruction of dynamic contrast‐enhanced (DCE) MRI, using the iterative Golden‐angle…

Golden ratio sparse MRI using tiny golden angles

- GeologyMagnetic resonance in medicine
- 2016

The purpose of this work is to enable the combination of iterative golden angle radial sparse parallel MRI with balanced SSFP using the recently presented tiny golden angles.

Accelerated radial echo‐planar spectroscopic imaging using golden angle view‐ordering and compressed‐sensing reconstruction with total variation regularization

- PhysicsMagnetic resonance in medicine
- 2021

To implement a novel, accelerated, 2D radial echo‐planar spectroscopic imaging (REPSI) sequence using undersampled radial k‐space trajectories and compressed‐sensing reconstruction, and to compare…

Comparison of conventional DCE‐MRI and a novel golden‐angle radial multicoil compressed sensing method for the evaluation of breast lesion conspicuity

- MedicineJournal of magnetic resonance imaging : JMRI
- 2017

To compare a novel multicoil compressed sensing technique with flexible temporal resolution, golden‐angle radial sparse parallel (GRASP), to conventional fat‐suppressed spoiled three‐dimensional (3D)…

Low‐rank plus sparse compressed sensing for accelerated proton resonance frequency shift MR temperature imaging

- PhysicsMagnetic resonance in medicine
- 2019

To improve multichannel compressed sensing (CS) reconstruction for MR proton resonance frequency (PRF) shift thermography, with application to MRI‐induced RF heating evaluation and MR guided high…

Free‐breathing dynamic contrast‐enhanced MRI for assessment of pulmonary lesions using golden‐angle radial sparse parallel imaging

- Medicine, PhysicsJournal of magnetic resonance imaging : JMRI
- 2018

Dynamic contrast‐enhanced magnetic resonance imaging (DCE‐MRI) has been shown to be a promising technique for assessing lung lesions. However, DCE‐MRI often suffers from motion artifacts and…

Self‐gated fetal cardiac MRI with tiny golden angle iGRASP: A feasibility study

- MedicineJournal of magnetic resonance imaging : JMRI
- 2017

To develop and assess a technique for self‐gated fetal cardiac cine magnetic resonance imaging (MRI) using tiny golden angle radial sampling combined with iGRASP (iterative Golden‐angle RAdial Sparse…

Self‐gated tissue phase mapping using golden angle radial sparse SENSE

- PhysicsMagnetic resonance in medicine
- 2016

To investigate the combination of Golden Angle Radial Sparse SENSE reconstruction with image‐based self‐gating (SG) for deriving high‐quality TPM data from radial golden angle (GA) k‐space data.

Validation of highly accelerated real‐time cardiac cine MRI with radial k‐space sampling and compressed sensing in patients at 1.5T and 3T

- Medicine, PhysicsMagnetic resonance in medicine
- 2018

To validate an optimal 12‐fold accelerated real‐time cine MRI pulse sequence with radial k‐space sampling and compressed sensing (CS) in patients at 1.5T and 3T.

## References

SHOWING 1-10 OF 42 REFERENCES

Compressed sensing in dynamic MRI

- Computer ScienceMagnetic resonance in medicine
- 2008

Given sufficient data sparsity and base signal‐to‐noise ratio (SNR), CS is demonstrated to result in improved temporal fidelity compared to k‐t BLAST reconstructions for the example data sets used in this work.

The influence of radial undersampling schemes on compressed sensing reconstruction in breast MRI

- Environmental ScienceMagnetic resonance in medicine
- 2012

Results from point spread function studies, simulations, phantom and in vivo experiments show that the choice of radial sampling pattern influences the quality of the final image reconstructed by the compressed sensing algorithm, and golden‐angle radial sampling results in the least overall error when various temporal resolutions are considered.

Free-Breathing Contrast-Enhanced Multiphase MRI of the Liver Using a Combination of Compressed Sensing, Parallel Imaging, and Golden-Angle Radial Sampling

- MedicineInvestigative radiology
- 2013

Contrast-enhanced multiphase liver MRI of diagnostic quality can be performed during free breathing using a combination of compressed sensing, parallel imaging, and golden-angle radial sampling.

Highly accelerated real‐time cardiac cine MRI using k–t SPARSE‐SENSE

- MedicineMagnetic resonance in medicine
- 2013

This work presents an eightfold accelerated real‐time cardiac cine MRI pulse sequence using a combination of compressed sensing and parallel imaging (k‐t SPARSE‐SENSE), which is a promising modality for rapid imaging of myocardial function.

Accelerated phase‐contrast cine MRI using k‐t SPARSE‐SENSE

- MedicineMagnetic resonance in medicine
- 2012

The proposed 6‐fold accelerated PC cine MRI pulse sequence with k‐t SPARSE‐SENSE is a promising investigational method for rapid velocity measurement with relatively high spatial and temporal resolutions.

k‐t FOCUSS: A general compressed sensing framework for high resolution dynamic MRI

- Computer ScienceMagnetic resonance in medicine
- 2009

An extension of k‐t FOCUSS to a more general framework with prediction and residual encoding, where the prediction provides an initial estimate and the residual encoding takes care of the remaining residual signals.

High Spatial and Temporal Resolution 2 D Real Time and 3 D Whole-Heart Cardiac Cine MRI Using Compressed Sensing and Parallel Imaging with Golden Angle Radial Trajectory

- Medicine
- 2011

High Spatial and Temporal Resolution 2D Real Time and 3D Whole-Heart Cardiac Cine MRI Using Compressed Sensing and Parallel Imaging with Golden Angle Radial Trajectory is presented.

Sparse MRI: The application of compressed sensing for rapid MR imaging

- Computer ScienceMagnetic resonance in medicine
- 2007

Practical incoherent undersampling schemes are developed and analyzed by means of their aliasing interference and demonstrate improved spatial resolution and accelerated acquisition for multislice fast spin‐echo brain imaging and 3D contrast enhanced angiography.

k-t SPARSE: High frame rate dynamic MRI exploiting spatio-temporal sparsity

- Computer Science
- 2006

A method for high frame-rate dynamic imaging based on similar ideas, now exploiting both spatial and temporal sparsity of dynamic MRI image sequences (dynamic scene) by exploiting sparsity by constraining the reconstruction to have a sparse representation and be consistent with the measured data by solving the constrained optimization problem.

k‐t BLAST and k‐t SENSE: Dynamic MRI with high frame rate exploiting spatiotemporal correlations

- MathematicsMagnetic resonance in medicine
- 2003

Based on this approach, two methods were developed to significantly improve the performance of dynamic imaging, named k‐t BLAST (Broad‐use Linear Acquisition Speed‐up Technique) and k-t SENSE (SENSitivity Encoding) for use with a single or multiple receiver coils, respectively.