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

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 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

scholarly journals Quantitative Susceptibility Mapping for Following Intracranial Hemorrhage

Radiology ◽  
2018 ◽  
Vol 288 (3) ◽  
pp. 830-839 ◽  
Author(s):  
Hongfu Sun ◽  
Ana C. Klahr ◽  
Mahesh Kate ◽  
Laura C. Gioia ◽  
Derek J. Emery ◽  
...  
Keyword(s):  
Intracranial Hemorrhage ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping

Emerging Applications for Quantitative Susceptibility Mapping in the Detection of Traumatic Brain Injury Pathology

Neuroscience ◽  
2021 ◽  
Author(s):  
Aleksandra Gozt ◽  
Sarah Hellewell ◽  
Phillip GD Ward ◽  
Michael Bynevelt ◽  
Melinda Fitzgerald
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping

scholarly journals xQSM: quantitative susceptibility mapping with octave convolutional and noise‐regularized neural networks

2020 ◽  
Author(s):  
Yang Gao ◽  
Xuanyu Zhu ◽  
Bradford A. Moffat ◽  
Rebecca Glarin ◽  
Alan H. Wilman ◽  
...  
Keyword(s):  
Neural Networks ◽  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping

scholarly journals Rapid multi-orientation quantitative susceptibility mapping

NeuroImage ◽  
2016 ◽  
Vol 125 ◽  
pp. 1131-1141 ◽  
Author(s):  
Berkin Bilgic ◽  
Luke Xie ◽  
Russell Dibb ◽  
Christian Langkammer ◽  
Aysegul Mutluay ◽  
...  
Keyword(s):  
Susceptibility Mapping ◽  
Quantitative Susceptibility Mapping
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