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Rapid multi-orientation quantitative susceptibility mapping
2016
NeuroImage
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., Rapid multi-orientation quantitative susceptibility mapping, NeuroImage (2015), http://dx.doi.org/ 10.1016/j.neuroimage.2015.08.015
Please cite this article as: Bilgic, B., et al., Rapid multi-orientation ...
This would enable corkscrew with magnitude-, phase-, and R2*-imaging at ultra-high magnetic field strength. 2Q1 Rapid multi-orientation quantitative susceptibility mapping 3Q2 Berkin Bilgic a,f, ⁎, Luke ...
doi:10.1016/j.neuroimage.2015.08.015
pmid:26277773
pmcid:PMC4691433
fatcat:gv7jsgjixbcpffiqjcgltvisqa
Rapid simultaneous acquisition of macromolecular tissue volume, susceptibility, and relaxometry maps
[article]
2021
bioRxiv
pre-print
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Results Subject #1s multi-orientation and single-orientation MTV maps were not significantly different based on RMSE. ...
Purpose A major obstacle to the clinical implementation of quantitative MR is the lengthy acquisition time required to derive multi-contrast parametric maps. ...
Introduction Quantitative susceptibility mapping (QSM) has emerged as a promising technique for measuring magnetic susceptibility, which has been shown to correlate with paramagnetic substrates in the ...
doi:10.1101/2021.06.08.447552
fatcat:c4kxd2t3a5csrmp7ocbd5y3hpq
Single-step quantitative susceptibility mapping with variational penalties
2016
NMR in Biomedicine
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Quantitative susceptibility mapping (QSM) estimates the underlying tissue magnetic susceptibility from the gradient echo (GRE) phase signal through background phase removal and dipole inversion steps. ...
These acquisitions employ the rapid three-dimensional echo planar imaging (3D EPI) and Wave-CAIPI (controlled aliasing in parallel imaging) trajectories for signal-to-noise ratio-efficient wholebrain imaging ...
Multi-echo Wave-CAIPI (controlled aliasing in parallel imaging). The reconstructed magnetic susceptibility maps obtained from six different quantitative susceptibility mapping (QSM) algorithms. ...
doi:10.1002/nbm.3570
pmid:27332141
pmcid:PMC5179325
fatcat:miyouiktpjgc3aajwuagq3u65e
Quantitative magnetic susceptibility mapping without phase unwrapping using WASSR
2014
NeuroImage
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Currently, such quantitative susceptibility mapping (QSM) methods employ gradient recalled echo (GRE) imaging to measure spatial differences in the signal phase evolution as a function of echo time, from ...
phase-based multi-echo GRE approach at 3 Tesla. ...
Using COSMOS with multi-orientation datasets for multi-echo GRE and WASSR to calibrate the LSQR susceptibility calculation for single-orientation datasets. ...
doi:10.1016/j.neuroimage.2013.09.072
pmid:24113625
pmcid:PMC3947267
fatcat:xejcjko4hranpiwro2gdqdccva
Quantitative susceptibility mapping: Report from the 2016 reconstruction challenge
2017
Magnetic Resonance in Medicine
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Susceptibility maps calculated from the single orientation data were compared against the reference susceptibility map. ...
Purpose: The aim of the 2016 quantitative susceptibility mapping (QSM) reconstruction challenge was to test the ability of various QSM algorithms to recover the underlying susceptibility from phase data ...
A COSMOS susceptibility map reflects the effective magnetic susceptibility averaged over all 12 orientations of the head. ...
doi:10.1002/mrm.26830
pmid:28762243
fatcat:hxjvtj7w5ncpzdw56cjbvltgmq
High-Resolution MR Imaging of the Human Brainstem In vivo at 7 Tesla
2013
Frontiers in Human Neuroscience
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as well as the inferior olive on R 1 , R 2 * , and susceptibility maps. ...
Images and quantitative maps were compared with histological stains and anatomical atlases to identify nerve nuclei and nerve fibers. ...
Manual reformatting of quantitative susceptibility maps in multi-planar orientations was performed with Freeview Frontiers in Human Neuroscience www.frontiersin.org of the Freesurfer software library 1 ...
doi:10.3389/fnhum.2013.00710
pmid:24194710
pmcid:PMC3810670
fatcat:vi55pw3f2ndi7jlbvgtgyigxzm
Measuring iron in the brain using quantitative susceptibility mapping and X-ray fluorescence imaging
2013
NeuroImage
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Keywords Brain iron; Ferritin; Quantitative susceptibility mapping (QSM); X-ray fluorescence imaging (XRF) ...
Quantitative susceptibility mapping (QSM), derived from magnetic resonance images, has been used to measure total iron content in vivo and in post mortem brain. ...
Jaladhar Neelavalli for their help on susceptibility mapping. The authors would also like to thank Dr. ...
doi:10.1016/j.neuroimage.2013.04.022
pmid:23591072
pmcid:PMC3843006
fatcat:qeos32seszgy5ja76ueuecw2cy
Multi-Echo Quantitative Susceptibility Mapping for Strategically Acquired Gradient Echo (STAGE) Imaging
2020
Frontiers in Neuroscience
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To develop a method to reconstruct quantitative susceptibility mapping (QSM) from multi-echo, multi-flip angle data collected using strategically acquired gradient echo (STAGE) imaging. ...
The measured susceptibility values from scSWIM for both simulated and in vivo data were compared to the: original susceptibility model (for simulated data only), the multi orientation COSMOS (for in vivo ...
Quantitative Analysis for Susceptibility Map For the quantitative analysis of the data, the susceptibility mean and standard deviation were found from the entire 3D structure of interest. ...
doi:10.3389/fnins.2020.581474
pmid:33192267
pmcid:PMC7645168
fatcat:gst7fdytpjhpzestysdkkedsnm
Improvement of Signal Inhomogeneity Induced by Radio-frequency Transmit-related Phase Error for Single-step Quantitative Susceptibility Mapping Reconstruction
2019
Magnetic Resonance in Medical Sciences
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To mitigate the susceptibility inhomogeneity induced by radio-frequency transmit phase error through the whole brain in quantitative susceptibility mapping (QSM) using single-echo gradient echo sequence ...
The proposed algorithm had effectively suppressed the susceptibility inhomogeneity through the whole brain and achieved acceptable quality, similar to that of the susceptibility map calculated from a multi-echo ...
Introduction Quantitative susceptibility mapping (QSM) is a technique that provides quantification of susceptibility values with high sensitivity of susceptibility changes of the brain, which enables the ...
doi:10.2463/mrms.tn.2018-0066
pmid:30799332
pmcid:PMC6883092
fatcat:sb662r3chjetlbtqypqwqfaatu
Magnetic susceptibility contrast variations in multiple sclerosis lesions
2015
Journal of Magnetic Resonance Imaging
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Maps of R2*, frequency and quantitative susceptibility were calculated using acquired multi-echo gradient echo (GRE) phase data. ...
Hence we sought to characterize MS lesions using combined R2* mapping and quantitative susceptibility mapping (QSM). ...
Quantitative susceptibility mapping, on the other hand, is not susceptible to orientation and geometry effects in the same manner. ...
doi:10.1002/jmri.24976
pmid:26073973
pmcid:PMC4678033
fatcat:weoo56kc4rd6beyo7drvu6eudq
Susceptibility-Based Neuroimaging: Standard Methods, Clinical Applications, and Future Directions
2017
Current Radiology Reports
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Additionally, emerging MRI techniques have the ability to provide new information based on tissue susceptibility properties in a robust and quantitative manner. ...
This paper discusses these advanced susceptibility imaging techniques and their clinical applications. ...
[76] An alternative approach to these single orientation methods is acquiring additional GRE volumes at multiple head orientations (calculation of susceptibility through multi-orientation sampling - ...
doi:10.1007/s40134-017-0204-1
pmid:28695062
pmcid:PMC5501163
fatcat:7gswd5n56nfnrmsjqwrtfucf74
Functional quantitative susceptibility mapping (fQSM)
2014
NeuroImage
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Here, we additionally interrogated the phase data of the fMRI time-series and used quantitative susceptibility mapping (QSM) in order to investigate the potential of functional QSM (fQSM) relative to standard ...
We also critically discuss the technical challenges and issues linked to this intriguing new technique. quantitative susceptibility mapping; RELPOLY, relative polynomial filtering; RETROICOR, imagebased ...
Here, we present a generalized approach for task-related BOLD susceptibility mapping, which we term functional quantitative susceptibility mapping (fQSM). ...
doi:10.1016/j.neuroimage.2014.06.011
pmid:24945672
fatcat:55xe65or2vbojnom23adwzugxu
MoDL-QSM: Model-based Deep Learning for Quantitative Susceptibility Mapping
2021
NeuroImage
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Quantitative susceptibility mapping (QSM) has demonstrated great potential in quantifying tissue susceptibility in various brain diseases. ...
Specifically, MoDL-QSM accounts for the relationship between STI-derived phase contrast induced by the susceptibility tensor terms (χ13, χ23 and χ33) and the acquired single-orientation phase. ...
Introduction Quantitative susceptibility mapping (QSM) is a recent technique based on MRI phase signal that quantifies the spatial distribution of magnetic susceptibility within a tissue Bilgic et al. ...
doi:10.1016/j.neuroimage.2021.118376
pmid:34246768
fatcat:zf7gfneii5dejf7linnrlvwjla
Recent advances in magnetic resonance imaging of optic neuritis
2020
Chinese Journal of Academic Radiology
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Optic neuritis is a common cause of vision loss, but it is difficult to visualize the lesion well via conventional magnetic resonance imaging due to its small size and oblique orientations of the optic ...
Two-dimensional MRI sequences are susceptible to partial volume effects caused by the small size and oblique orientations of optic nerves. ...
Multi-echo fast spin-echo pulse sequences can overcome this limitation for T2 mapping [12] . ...
doi:10.1007/s42058-020-00026-2
fatcat:bueaukdty5eihalx55uuh6poru
Vascular and Tissue Changes of Magnetic Susceptibility in the Mouse Brain After Transient Cerebral Ischemia
2017
Translational Stroke Research
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Quantitative susceptibility mapping (QSM) has been recently introduced as a novel MRI post-processing technique of gradient recalled echo (GRE) data. ...
We acquired GRE data of mice brains at different time points after tMCAO, from which we computed QSM and MR frequency maps, and compared these maps with diffusion imaging and multi-slice multi-echo imaging ...
Quantitative susceptibility maps were computed based on these combined phase images. ...
doi:10.1007/s12975-017-0591-x
pmid:29177950
pmcid:PMC6061250
fatcat:hbm73nrvf5h55ifr52gty5ga4a
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