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Highly efficient MRI through multi-shot echo planar imaging [article]

Congyu Liao, Xiaozhi Cao, Jaejin Cho, Zijing Zhang, Kawin Setsompop, Berkin Bilgic
2019 arXiv   pre-print
Multi-shot echo planar imaging (msEPI) is a promising approach to achieve high in-plane resolution with high sampling efficiency and low T2* blurring.  ...  We improve the acquisition efficiency and reconstruction quality by incorporating simultaneous multi-slice acquisition and virtual-coil reconstruction into the BUDA technique.  ...  of Neurological Disorders and Stroke, Grant/Award Number: K23 NS096056; National Institute of Mental Health, Grant/Award Number: R01 MH116173 and R24 MH106096; Center for Biomedical Imaging, Grant/Award  ... 
arXiv:1908.00983v1 fatcat:aku6w4ccuzchjcpxdilgotvmpe

Highly Accelerated Multishot EPI through Synergistic Machine Learning and Joint Reconstruction [article]

Berkin Bilgic, Itthi Chatnuntawech, Mary Kate Manhard, Qiyuan Tian, Congyu Liao, Stephen F. Cauley, Susie Y. Huang, Jonathan R. Polimeni, Lawrence L. Wald, Kawin Setsompop
2019 arXiv   pre-print
Purpose: To introduce a combined machine learning (ML) and physics-based image reconstruction framework that enables navigator-free, highly accelerated multishot echo planar imaging (msEPI), and demonstrate  ...  These variations are then included in a Joint Virtual Coil Sensitivity Encoding (JVC-SENSE) reconstruction to utilize data from all shots and improve upon the ML solution.  ...  Given the phase of each shot, we then perform a Joint Virtual Coil Sensitivity Encoding (JVC-SENSE) reconstruction where we utilize the k-space data from all shots as well as virtual coil concept (19)  ... 
arXiv:1808.02814v3 fatcat:rvfaxqfbpnc27hd2qhuwomuj44

Advances in Fast Vessel-Wall Magnetic Resonance Imaging Using High-Density Coil Arrays

Xuetong Yin, Nan Li, Sen Jia, Xiaoliang Zhang, Ye Li
2021 Investigative Magnetic Resonance Imaging  
This review analyzes fast magnetic resonance imaging from the perspective of accelerated algorithms for vessel wall imaging and demonstrates the need for effective algorithms for signal acquisition using  ...  High-resolution vessel wall magnetic resonance imaging is generally recognized as a non-invasive and panoramic method for the evaluation of arterial plaque; however, this method requires improved signal-tonoise  ...  Carotid Coil Arrays Phased-array neck coils are highly sensitive for highresolution imaging of carotid arteries due to their small size and shallow location (101) (102) (103) .  ... 
doi:10.13104/imri.2021.25.4.229 fatcat:de3fknxzuvf5zee6lumqgo4l6a

Physics-based Reconstruction Methods for Magnetic Resonance Imaging [article]

Xiaoqing Wang, Zhengguo Tan, Nick Scholand, Volkert Roeloffs, Martin Uecker
2021 arXiv   pre-print
image reconstruction -- addressing both shortcomings of conventional MRI at the same time.  ...  By formulating image reconstruction as an inverse problem, quantitative maps of the underlying physical parameters can then be extracted directly from efficiently acquired k-space signals without intermediate  ...  Tobias Block for the radial spin-echo sequence, and Dr. Christian Holme for help with the scripts.  ... 
arXiv:2010.01403v3 fatcat:dwd2abbjgvhpvh4c63lmmyaouy

Simultaneous multislice (SMS) imaging techniques

Markus Barth, Felix Breuer, Peter J. Koopmans, David G. Norris, Benedikt A. Poser
2015 Magnetic Resonance in Medicine  
Unlike inplane parallel imaging this can have only a marginal intrinsic signalto-noise ratio penalty, and the full acceleration is attainable at fixed echo time, as is required for many echo planar imaging  ...  receiver coils.  ...  ACKNOWLEDGMENTS The authors thank David Feinberg, Christine Guo, Kawin Setsompop, and Daniel St€ ab for helpful comments.  ... 
doi:10.1002/mrm.25897 pmid:26308571 pmcid:PMC4915494 fatcat:mp5hkqrqajdkbodgwm7zv7lufy

Robust Autocalibrated Structured Low-Rank EPI Ghost Correction [article]

Rodrigo A. Lobos, W. Scott Hoge, Ahsan Javed, Congyu Liao, Kawin Setsompop, Krishna S. Nayak, Justin P. Haldar
2020 arXiv   pre-print
, diffusion-encoded brain imaging, and cardiac imaging).  ...  Results: RAC-LORAKS is demonstrated to have good ghost elimination performance compared to state-of-the-art methods in several complicated EPI acquisition scenarios (including gradient-echo brain imaging  ...  Computation for some of the work described in this paper was supported by the University of Southern California's Center for High-Performance Computing (http://hpcc.usc.edu/).  ... 
arXiv:1907.13261v3 fatcat:j6bxcuwlovdu7ldcq3c5mt4hmm

Pushing spatial and temporal resolution for functional and diffusion MRI in the Human Connectome Project

Kamil Uğurbil, Junqian Xu, Edward J. Auerbach, Steen Moeller, An T. Vu, Julio M. Duarte-Carvajalino, Christophe Lenglet, Xiaoping Wu, Sebastian Schmitter, Pierre Francois Van de Moortele, John Strupp, Guillermo Sapiro (+15 others)
2013 NeuroImage  
These are: 1) resting state functional MR imaging (rfMRI) which uses correlations in the temporal fluctuations in an fMRI time series to deduce 'functional connectivity'; 2) diffusion imaging (dMRI), which  ...  provides the input for tractography algorithms used for the reconstruction of the complex axonal fiber architecture; and 3) task based fMRI (tfMRI), which is employed to identify functional parcellation  ...  Acknowledgments The work reported in this article was supported by the Human Connectome Project (1U54MH091657) from the 16 Institutes and Centers of the National Institutes of Health that support the NIH Blueprint for  ... 
doi:10.1016/j.neuroimage.2013.05.012 pmid:23702417 pmcid:PMC3740184 fatcat:wajdgqkztvg43eyxxovlxlshky

Clinical Potential of a New Approach to MRI Acceleration

Nadine L. Dispenza, Sebastian Littin, Maxim Zaitsev, R. Todd Constable, Gigi Galiana
2019 Scientific Reports  
geometry changes without the need for recalibration or additional field mapping, (3) contrast generation, as in turbo spin echo.  ...  Cartesian-FRONSAC improves accelerated imaging while retaining the robustness and flexibility critical to real clinical use.  ...  We would like to thank Stefan Kroboth for his help imaging with the Freiburg nonlinear gradient setup and Dr.  ... 
doi:10.1038/s41598-018-36802-5 pmid:30760731 pmcid:PMC6374397 fatcat:mwzf6xqclzblbezuhxvph25zwe

Two-dimensional-NGC-SENSE-GRAPPA for fast, ghosting-robust reconstruction of in-plane and slice-accelerated blipped-CAIPI echo planar imaging

Peter J. Koopmans
2016 Magnetic Resonance in Medicine  
INTRODUCTION Simultaneous multislice (SMS) echo planar imaging (EPI) reconstruction algorithms suffer from interactions with EPI ghosting.  ...  Scenario 2: Read-Out Segmented Diffusion Imaging In the scenarios above, the ACS data were either not distortion matched or suffered from intersegment phase instabilities, which disadvantaged 2D-SENSE-GRAPPA  ... 
doi:10.1002/mrm.26179 pmid:26932565 pmcid:PMC5324691 fatcat:zj5wjcspcvei7mqd7dkqul7rvq

SMASH, SENSE, PILS, GRAPPA

Martin Blaimer, Felix Breuer, Matthias Mueller, Robin M Heidemann, Mark A Griswold, Peter M Jakob
2004 Topics in Magnetic Resonance Imaging (TMRI)  
and drawbacks with regard to a successful image reconstruction.  ...  Within the last 3 years, parallel imaging methods have become commercially available, and therefore are now available for a broad clinical use.  ...  Medical Solutions, Erlangen, Germany and Jianmin Wang for their helpful discussions and support.  ... 
doi:10.1097/01.rmr.0000136558.09801.dd pmid:15548953 fatcat:xsclkbglajf7vju5rjba2hdvda

Massively parallel MRI detector arrays

Boris Keil, Lawrence L. Wald
2013 Journal of magnetic resonance (San Diego, Calif. 1997 : Print)  
accelerated imaging with the resulting highly parallel arrays.  ...  coils to perform image encoding.  ...  Wiggins, now of NYU, for their contribution to forming our understanding of massively parallel arrays and receiver configurations and Florian Wiesinger of ETH for results modeling brain arrays and the  ... 
doi:10.1016/j.jmr.2013.02.001 pmid:23453758 pmcid:PMC3740730 fatcat:xmuvnjmnnjhvxmcr6ynsi5t6zu

Simultaneous and inherent correction of B0 and eddy-current induced distortions in high-resolution diffusion MRI using reversed polarity gradients and multiplexed sensitivity encoding (RPG-MUSE)

Iain P. Bruce, Christopher Petty, Allen W. Song
2018 NeuroImage  
This report presents a novel technique, termed RPG-MUSE, for achieving distortion-free high-resolution diffusion MRI by integrating reversed polarity gradients (RPG) into the multi-shot echo planar imaging  ...  In diffusion MRI (dMRI), static magnetic field (B0) inhomogeneity and time varying gradient eddy currents induce spatial distortions in reconstructed images.  ...  However, the use of fast imaging methods such as echo-planar imaging (EPI) [Turner et al., 1990] and large diffusion-weighting gradients induce geometric distortions in dMRI.  ... 
doi:10.1016/j.neuroimage.2018.09.055 pmid:30243955 pmcid:PMC6631373 fatcat:tfeqwwk6b5fkndh6nclcwp3dby

Properties of a 2D fat navigator for prospective image domain correction of nodding motion in brain MRI

Stefan Skare, Axel Hartwig, Magnus Mårtensson, Enrico Avventi, Mathias Engström
2014 Magnetic Resonance in Medicine  
One of the possible MR imaging contrasts is the ability to visualize diffusion processes.  ...  The method, referred to as diffusion---weighted imaging, is one of the most common clinical contrasts but is prone to artifacts and is challenging to acquire at high resolutions.  ...  Echo Planar Imaging Echo Planar Imaging (EPI) is a fast image acquisition technique that was invented in 1977 by Sir Peter Mansfield (4) .  ... 
doi:10.1002/mrm.25234 pmid:24733744 fatcat:edimpyjaafad7bnjtfem4datrm

Advances in diffusion MRI acquisition and processing in the Human Connectome Project

Stamatios N. Sotiropoulos, Saad Jbabdi, Junqian Xu, Jesper L. Andersson, Steen Moeller, Edward J. Auerbach, Matthew F. Glasser, Moises Hernandez, Guillermo Sapiro, Mark Jenkinson, David A. Feinberg, Essa Yacoub (+4 others)
2013 NeuroImage  
In this overview, we focus on diffusion MRI (dMRI) and the structural connectivity aspect of the project.  ...  A consortium of HCP investigators will study a population of 1200 healthy adults using multiple imaging modalities, along with extensive behavioral and genetic data.  ...  Computations were performed using the facilities of the Washington University Center for High Performance Computing, which were partially provided through grant NCRR 1S10RR022984-01A1.  ... 
doi:10.1016/j.neuroimage.2013.05.057 pmid:23702418 pmcid:PMC3720790 fatcat:3e3hkqbzdjcmtnx4anwqp3swvi

Parallel Imaging Techniques in Functional MRI

Xavier Golay, Jacco A de Zwart, Yi-Ching Lynn Ho, Yih-Yian Sitoh
2004 Topics in Magnetic Resonance Imaging (TMRI)  
It has been applied to reduce the distortions caused by the length of the echo-planar imaging readout, diminution of the gradient-related acoustic noise, as a means to increase acquisition speed or to  ...  Originally developed for increased scanning velocity in cardiac imaging, parallel imaging (PI) techniques have recently also been applied for the reduction of artifacts in single-shot techniques.  ...  Using their coil, no resonance peak split was observed and the coils could be tuned and matched individually for each subject.  ... 
doi:10.1097/01.rmr.0000142829.79609.d4 pmid:15548956 fatcat:g4desex3zffwnhs7ldrqh6teyi
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