Multiecho complex total field inversion method (mcTFI) for improved signal modeling in quantitative susceptibility mapping

2021 ◽  
Author(s):  
Yan Wen ◽  
Pascal Spincemaille ◽  
Thanh Nguyen ◽  
Junghun Cho ◽  
Ilhami Kovanlikaya ◽  
...  
Keyword(s):  
Susceptibility Mapping ◽  
Inversion Method ◽  
Total Field ◽  
Signal Modeling ◽  
Quantitative Susceptibility Mapping ◽  
Field Inversion

scholarly journals Preconditioned water‐fat total field inversion: Application to spine quantitative susceptibility mapping

2021 ◽  
Author(s):  
Christof Boehm ◽  
Nico Sollmann ◽  
Jakob Meineke ◽  
Stefan Ruschke ◽  
Michael Dieckmeyer ◽  
...  
Keyword(s):  
Susceptibility Mapping ◽  
Total Field ◽  
Quantitative Susceptibility Mapping ◽  
Field Inversion

Quantitative susceptibility mapping of carotid plaques using nonlinear total field inversion: Initial experience in patients with significant carotid stenosis

2020 ◽  
Vol 84 (3) ◽  
pp. 1501-1509 ◽  
Author(s):  
Thanh D. Nguyen ◽  
Yan Wen ◽  
Jingwen Du ◽  
Zhe Liu ◽  
Kelly Gillen ◽  
...  
Keyword(s):  
Carotid Stenosis ◽  
Susceptibility Mapping ◽  
Initial Experience ◽  
Total Field ◽  
Quantitative Susceptibility Mapping ◽  
Carotid Plaques ◽  
Field Inversion

scholarly journals Spatially Adaptive Regularization in Total Field Inversion for Quantitative Susceptibility Mapping

iScience ◽  
2020 ◽  
Vol 23 (10) ◽  
pp. 101553
Author(s):  
Priya S. Balasubramanian ◽  
Pascal Spincemaille ◽  
Lingfei Guo ◽  
Weiyuan Huang ◽  
Ilhami Kovanlikaya ◽  
...  
Keyword(s):  
Susceptibility Mapping ◽  
Total Field ◽  
Quantitative Susceptibility Mapping ◽  
Adaptive Regularization ◽  
Spatially Adaptive ◽  
Field Inversion

scholarly journals Preconditioned total field inversion (TFI) method for quantitative susceptibility mapping

2016 ◽  
Vol 78 (1) ◽  
pp. 303-315 ◽  
Author(s):  
Zhe Liu ◽  
Youngwook Kee ◽  
Dong Zhou ◽  
Yi Wang ◽  
Pascal Spincemaille
Keyword(s):  
Susceptibility Mapping ◽  
Total Field ◽  
Quantitative Susceptibility Mapping ◽  
Field Inversion

Quantitative susceptibility mapping using a superposed dipole inversion method: Application to intracranial hemorrhage

2015 ◽  
Vol 76 (3) ◽  
pp. 781-791 ◽  
Author(s):  
Hongfu Sun ◽  
Mahesh Kate ◽  
Laura C. Gioia ◽  
Derek J. Emery ◽  
Kenneth Butcher ◽  
...  
Keyword(s):  
Intracranial Hemorrhage ◽  
Susceptibility Mapping ◽  
Inversion Method ◽  
Quantitative Susceptibility Mapping

scholarly journals Oxygen extraction fraction measurement using quantitative susceptibility mapping: Comparison with positron emission tomography

2015 ◽  
Vol 36 (8) ◽  
pp. 1424-1433 ◽  
Author(s):  
Kohsuke Kudo ◽  
Tian Liu ◽  
Toshiyuki Murakami ◽  
Jonathan Goodwin ◽  
Ikuko Uwano ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Normal Subjects ◽  
Susceptibility Mapping ◽  
Emission Tomography ◽  
Oxygen Extraction Fraction ◽  
Oxygen Extraction ◽  
Inversion Method ◽  
Quantitative Susceptibility Mapping ◽  
Extraction Fraction ◽  
Positron Emission

The purposes of this study are to establish oxygen extraction fraction (OEF) measurements using quantitative susceptibility mapping (QSM) of magnetic resonance imaging (MRI), and to compare QSM–OEF data with the gold standard 15O positron emission tomography (PET). Twenty-six patients with chronic unilateral internal carotid artery or middle cerebral artery stenosis or occlusion, and 15 normal subjects were included. MRI scans were conducted using a 3.0 Tesla scanner with a three-dimensional spoiled gradient recalled sequence. QSM images were created using the morphology-enabled dipole inversion method, and OEF maps were generated from QSM images using extraction of venous susceptibility induced by deoxygenated hemoglobin. Significant correlation of relative OEF ratio to contra-lateral hemisphere between QSM–OEF and PET–OEF was observed (r = 0.62, p < 0.001). The local (intra-section) correlation was also significant (r = 0.52, p < 0.001) in patients with increased PET–OEF. The sensitivity and specificity of OEF increase in QSM was 0.63 (5/8) and 0.89 (16/18), respectively, in comparison with PET. In conclusion, good correlation was achieved between QSM–OEF and PET–OEF in the identification of elevated OEF in affected hemispheres of patients with unilateral chronic steno-occlusive disease.

Whole head quantitative susceptibility mapping using a least-norm direct dipole inversion method

NeuroImage ◽  
2018 ◽  
Vol 179 ◽  
pp. 166-175 ◽  
Author(s):  
Hongfu Sun ◽  
Yuhan Ma ◽  
M. Ethan MacDonald ◽  
G. Bruce Pike
Keyword(s):  
Susceptibility Mapping ◽  
Inversion Method ◽  
Quantitative Susceptibility Mapping
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