scholarly journals Point spread function mapping with parallel imaging techniques and high acceleration factors: Fast, robust, and flexible method for echo-planar imaging distortion correction

2004 ◽  
Vol 52 (5) ◽  
pp. 1156-1166 ◽  
Author(s):  
M. Zaitsev ◽  
J. Hennig ◽  
O. Speck
Keyword(s):  
Point Spread Function ◽  
Parallel Imaging ◽  
Imaging Techniques ◽  
Echo Planar Imaging ◽  
Distortion Correction ◽  
Planar Imaging ◽  
Point Spread ◽  
High Acceleration ◽  
Spread Function ◽  
Echo Planar

scholarly journals Accelerated point spread function mapping using signal modeling for accurate echo-planar imaging geometric distortion correction

2012 ◽  
Vol 69 (6) ◽  
pp. 1650-1656 ◽  
Author(s):  
Iulius Dragonu ◽  
Thomas Lange ◽  
Nicoleta Baxan ◽  
Jeff Snyder ◽  
Juergen Hennig ◽  
...  
Keyword(s):  
Point Spread Function ◽  
Echo Planar Imaging ◽  
Distortion Correction ◽  
Geometric Distortion ◽  
Planar Imaging ◽  
Signal Modeling ◽  
Point Spread ◽  
Spread Function ◽  
Echo Planar ◽  
Function Mapping

Correction for Susceptibility-Induced Distortion in Echo-Planar Imaging Using Field Maps and Model-Based Point Spread Function

2009 ◽  
Vol 28 (11) ◽  
pp. 1850-1857 ◽  
Author(s):  
Yung-Chin Hsu ◽  
Ching-Han Hsu ◽  
W.-Y.I. Tseng
Keyword(s):  
Point Spread Function ◽  
Echo Planar Imaging ◽  
Planar Imaging ◽  
Model Based ◽  
Point Spread ◽  
Spread Function ◽  
Echo Planar

scholarly journals Fast diffusion tensor imaging and tractography of the whole cervical spinal cord using point spread function corrected echo planar imaging

2012 ◽  
Vol 69 (1) ◽  
pp. 144-149 ◽  
Author(s):  
Henrik Lundell ◽  
Dorothy Barthelemy ◽  
Fin Biering-Sørensen ◽  
Julien Cohen-Adad ◽  
Jens Bo Nielsen ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Point Spread Function ◽  
Diffusion Tensor ◽  
Cervical Spinal Cord ◽  
Fast Diffusion ◽  
Planar Imaging ◽  
Point Spread ◽  
Spread Function ◽  
Echo Planar

scholarly journals Simultaneous Multislice Echo Planar Imaging With Blipped Controlled Aliasing in Parallel Imaging Results in Higher Acceleration

2015 ◽  
Vol 50 (7) ◽  
pp. 456-463 ◽  
Author(s):  
Lukas Filli ◽  
Marco Piccirelli ◽  
David Kenkel ◽  
Roman Guggenberger ◽  
Gustav Andreisek ◽  
...  
Keyword(s):  
Parallel Imaging ◽  
Echo Planar Imaging ◽  
Planar Imaging ◽  
Imaging Results ◽  
Simultaneous Multislice ◽  
Echo Planar

Evaluation of Echo Planar Imaging (EPI) Distortion Correction using Synb0-DisCo and Reversed Phase Encoding Acquisition

2021 ◽  
Author(s):  
Alejandro Garma-Oehmichen ◽  
Kathya P. Acuna-Luna ◽  
Alejandro Santos-Diaz
Keyword(s):  
Reversed Phase ◽  
Echo Planar Imaging ◽  
Distortion Correction ◽  
Planar Imaging ◽  
Phase Encoding ◽  
Echo Planar

scholarly journals Susceptibility‐induced distortion correction in hyperpolarized echo planar imaging

2017 ◽  
Vol 79 (4) ◽  
pp. 2135-2141 ◽  
Author(s):  
Jack J. Miller ◽  
Angus Z. Lau ◽  
Damian J. Tyler
Keyword(s):  
Echo Planar Imaging ◽  
Distortion Correction ◽  
Planar Imaging ◽  
Echo Planar

scholarly journals EPI distortion correction for simultaneous human brain stimulation and imaging at 3T

2019 ◽  
Author(s):  
Hyuntaek Oh ◽  
Jung Hwan Kim ◽  
Jeffrey M. Yau
Keyword(s):  
Human Brain ◽  
Resting State ◽  
Network Architecture ◽  
Motor Behavior ◽  
Resting State Fmri ◽  
Echo Planar Imaging ◽  
Distortion Correction ◽  
Planar Imaging ◽  
Brain Scans ◽  
Echo Planar

AbstractTranscranial magnetic stimulation (TMS) can be paired with functional magnetic resonance imaging (fMRI) in simultaneous TMS-fMRI experiments. These multimodal experiments enable causal probing of network architecture in the human brain which can complement alternative network mapping approaches. Critically, merely introducing the TMS coil into the scanner environment can sometimes produce substantial magnetic field inhomogeneities and spatial distortions which limit the utility of simultaneous TMS-fMRI. We assessed the efficacy of point spread function corrected echo planar imaging (PSF-EPI) in correcting for the field inhomogeneities associated with a TMS coil at 3T. In phantom and brain scans, we quantitatively compared the coil-induced distortion artifacts measured in PSF-EPI scans to artifacts measured in conventional echo-planar imaging (EPI) and a simultaneous multi-slice sequence (SMS)-EPI. While we observed substantial coil-related artifacts in the data produced by the conventional EPI and SMS sequences, PSF-EPI produced data that had significantly greater signal-to-noise and less distortions. In phantom scans with the PSF-EPI sequence, we also characterized the temporal profile of dynamic artifacts associated with TMS delivery and found that image quality remained high as long as the TMS pulse preceded the RF excitation pulses by at least 50ms. Lastly, we validated the PSF-EPI sequence in human brain scans involving TMS and motor behavior as well as resting state fMRI scans. Our collective results demonstrate the superiority of PSF-EPI over conventional EPI and SMS sequences for simultaneous TMS-fMRI when coil-related artifacts are a concern. The ability to collect high quality resting state fMRI data in the same session as the simultaneous TMS-fMRI experiment offers a unique opportunity to interrogate network architecture in the human brain.

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